[Emc-users] cnc routers
Getting a bit old now, but this is a nice CNC machine made from tubing; http://oneoceankayaks.com/madvac/madvac_index.htm Regards Roland On 23 April 2015 at 17:17, andy pugh bodge...@gmail.com wrote: On 23 April 2015 at 13:55, Todd Zuercher zuerc...@embarqmail.com wrote: I doubt that would be stiff enough to use as a table surface by it's self. I was suggesting it as a spoilboard that was not affected by humidity. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc routers
On 23 April 2015 at 13:55, Todd Zuercher zuerc...@embarqmail.com wrote: I doubt that would be stiff enough to use as a table surface by it's self. I was suggesting it as a spoilboard that was not affected by humidity. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc routers
I doubt that would be stiff enough to use as a table surface by it's self. A material commonly used on large commercial routers is 3/4 or 1 inch thick phenolic sheets. But that stuff can get expensive. For building a vacuum table I have had good luck with using a 2x6 0.25 thick wall aluminum extrusion, then sticking a 1/4 thick Sintra (or similar PVC foam board) to the surface of that (we used a good double sided tape) and milling the surface flat and milling the vacuum pattern into that. - Original Message - From: andy pugh bodge...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Thursday, April 23, 2015 6:30:40 AM Subject: Re: [Emc-users] cnc routers On 23 April 2015 at 02:53, richsh...@comcast.net wrote: The working surface on my router is a piece of 1 1/8 plywood subfloor with a piece of 3/4 MDF over top. I made up the difference of 0.005 by a light surfacing cut of the MDF to make sure it is level. However, everytime it rains here, I know that I have to resurface the MDF, the characteristics of MDF, sorry Maybe something like this would be better? http://www.solwayrecycling.co.uk/agricultural/ecosheet -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc routers
On 23 April 2015 at 02:53, richsh...@comcast.net wrote: The working surface on my router is a piece of 1 1/8 plywood subfloor with a piece of 3/4 MDF over top. I made up the difference of 0.005 by a light surfacing cut of the MDF to make sure it is level. However, everytime it rains here, I know that I have to resurface the MDF, the characteristics of MDF, sorry Maybe something like this would be better? http://www.solwayrecycling.co.uk/agricultural/ecosheet -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc routers
On Thursday 23 April 2015 06:30:40 andy pugh wrote: On 23 April 2015 at 02:53, richsh...@comcast.net wrote: The working surface on my router is a piece of 1 1/8 plywood subfloor with a piece of 3/4 MDF over top. I made up the difference of 0.005 by a light surfacing cut of the MDF to make sure it is level. However, everytime it rains here, I know that I have to resurface the MDF, the characteristics of MDF, sorry Maybe something like this would be better? http://www.solwayrecycling.co.uk/agricultural/ecosheet Perhaps it would be better Andy, but at 46 UKP/sheet, and about that much for freight delivery, the mdf comes in at about 1/3rd the cost locally. When it show up at Lowes or Home Depot over here, who can buy it in truckload lots, sell it at a big buck a sheet, small maybe, depends on how many hours it takes to resurface the mdf, including the carbide tool you'll trash doing it. On a gantry router, it is still going to get dug up unless we're very carefull and use sacrificial but precise shims under the work, I would rather dig up a sacrificial piece of mdf even if the stuff is hell on tooling. In making my last furniture piece, I used a 2 piece of soon to be ir-replaceable white ash (the Emerald ash borer is killing them nationwide over here) that covered 95% of the table, with a caul of 1x2 straight maple, curved on the bottom face so it was pulled flat by a pair of 3/8 readi-thread studs screwed into the white ash, making its own threads, far enough apart I could clamp across an 11.5 wide Mahogany board and do the Green Green style big wide box joints on the ends of the boards. All the damage is a good inch beyond the caul board because thats as close as I can get to it without the spindle burning its way into the caul. On the rear is a piano hinge holding a flip it out of the way Mahogany strip end of board stop, and a left edge of board locator glued onto it that makes sure the left edge of the board is just inside the x travel limit with a 1/4 tool mounted. Works great, the area under the joints has been knocked smooth of burrs several times with some 80 grit paper to make sure the next board to be cut is laying flat when its clamped up. I haven't been as carefull about the depth of cut as I should have been, but the nonimally .750 thick Mahogony board I can get shipped in seems to have a tolerance of -0.005 to +.040 anyway. So I generally zero Z at the top surface + .015 feeler blade cut -.800 in whatever number of passes gets me around .75 spindle motor amps with my toy mill. However, I do have a good stock of white ash for the next furniture project, laid up under roof in my woodshed, getting rarer all the time. Some of it has been there 15 years now, ought to be nice dry. ;-) Humm, Maybe whats left will pay to bury me by then? It is a strikingly beautifull, creamy white wood, quite hard and I have not seen any listed for sale at the hardwood places in quite a while. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On 22 April 2015 at 13:02, Gene Heskett ghesk...@wdtv.com wrote: I can see why they would patent it. I wonder how long till it would take to stretch enough to not lay dead flat on the track? That's the super-clever bit. The teeth-up belt is bonded to the track, so the effective belt length and stretch is tiny. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On Wednesday 22 April 2015 08:10:57 Les Newell wrote: Hi Gene, I believe the lower belt is glued to the track so it cannot move, effectively making it a rack. Les Effectively 2 belts facing each other with symmetrical mirrored tooth profiles? Likely as good a rack as you could buy, at 10% of the cost per foot compared to a machined rack. I am still impressed. In such a situation I see a bidir spec of .002 tolerance, would this be a cyclic error that could be calibrated out by mapping it? Seems like it should be to me. With an index pulse from a stepper driver to home the error map to, even steppers could be used at the finer division ratios. My 1/8 I use with the screws which are much slower would be too coarse a move. My 2m542 drivers can go to /25. Since I have a 5i25 on the lathe, and the speed limit for the opticals in the 2m542 is a touch better than 300 kilohertz, I ought to do some experimenting with an eye to reducing the 2/1 reduction gear noise. Need a round tuit I guess. :( I am dreaming of course, no stepper driver I know about puts out an index at its power up default position, or when going by it, or even a once per rev pulse, nor are our stepper drivers capable of using it. Out of I/O pins is probably the biggest roadblock as that would take 2 more pins per axis. But I don't know of a law that says we can't dream, :) Glad to hear from you, I was afraid you had dropped off the list. On 22/04/2015 13:02, Gene Heskett wrote: Certifiable slicker than snot on a doorknob. I can see why they would patent it. I wonder how long till it would take to stretch enough to not lay dead flat on the track? Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] cnc routers
As Dirty Harry says A man needs to know his limitations ... A wooden framed tool will change constantly over its life, just the nature of wood. A reasonably priced starting point is 2 square steel tube, or 50mm square tube, for our metric friends. Is it going to be flat enough for your application? That will be up to you as to how you brace it, how you weld it. HINT: low heat, build the two side rail assemblies as a pair, so that any imperfections are the same on both sides. Assume that all parts are not perfect, weld in square nuts in the ends of the legs so you can use leg levelers to make up any fine adjustments. Same thing with the bed support, make sure that bed adjusting is designed in. How do you start from a known starting point? Buy yourself a machinery level on EBAY. I found a used Starret 8 machinery leveling level for $30.00 plus shipping. In a hurry? check out www.shars.com and see what they have to offer. As soon as you have one side leveled, it becomes a process of matching the remaining pieces, remember the adjustability designed in? Here is where you use it. Keep in mind that you are building a single machine, not multiples. For my router, I used 1/2-13 carriage bolts as the adjustable feet, mounted in a plastic deck board spacer. I got the rear rail, (90 long, as close to level as I could with the Starret level), then I used the straightest piece of 4 square tube I could find and placed the Starret level on top of it to match the opposite side. Once in position, I drilled holes in the crossbar flanges to take a roll pin to maintain the alignment. After this, I estimate that the working area was within 0.005, as measured with a dial indicator mounted in the quill of the spindle motor. The working surface on my router is a piece o f 1 1/8 plywood subfloor with a piece of 3/4 MDF over top. I made up the difference of 0.005 by a light surfacing cut of the MDF to make sure it is level. However, everytime it rains here, I know that I have to resurface the MDF, the characteristics of MDF, sorry. My environment here is miserable for any wood based item, never any drier than 50% humidity, sometimes as high as 85% for days. Some things you just have to accept and work with what you have. LinuxCNC has been absolutely reliable for me, been using it for over 10 years now. - Original Message - From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Tuesday, April 21, 2015 11:34:27 AM Subject: Emc-users Digest, Vol 108, Issue 58 Send Emc-users mailing list submissions to emc-users@lists.sourceforge.net To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/emc-users or, via email, send a message with subject or body 'help' to emc-users-requ...@lists.sourceforge.net You can reach the person managing the list at emc-users-ow...@lists.sourceforge.net When replying, please edit your Subject line so it is more specific than Re: Contents of Emc-users digest... Today's Topics: 1. Re: Cnc routers (Mark Wendt) 2. Re: TSC Kawasaki cutoff saw story (Gene Heskett) 3. Re: Cnc routers (Erik Friesen) 4. Re: TSC Kawasaki cutoff saw story (Todd Zuercher) 5. Re: Cnc routers (Bruce Layne) 6. Re: Mesa cards visual documentation (Karlsson Wang) 7. Re: Cnc routers (Gene Heskett) -- Message: 1 Date: Tue, 21 Apr 2015 05:58:09 -0400 From: Mark Wendt wendt.m...@gmail.com Subject: Re: [Emc-users] Cnc routers To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Message-ID: CABWWDmq9Ot-XbZh5nawcJ3DQWRpYdsUrJVUVNc5MTz=cj0j...@mail.gmail.com Content-Type: text/plain; charset=UTF-8 On Mon, Apr 20, 2015 at 6:04 PM, Erik Friesen e...@aercon.net wrote: I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm Erik, Take a look at http://www.cncrouterparts.com/pro-cnc-machine-kits-c-47_54.html Mark -- Message: 2 Date: Tue, 21 Apr 2015 06:19:09 -0400 From: Gene Heskett ghesk...@wdtv.com Subject: Re: [Emc-users] TSC Kawasaki cutoff saw story To: emc-users@lists.sourceforge.net Message-ID: 201504210619.09132.ghesk...@wdtv.com
Re: [Emc-users] Cnc routers
On 22 April 2015 at 05:44, Gregg Eshelman g_ala...@yahoo.com wrote: Same concept with a belt https://www.youtube.com/watch?v=OdJoVh6DRPA The Bell-Everman ServoBelt is really very clever. If I was building a router/plasma I would certainly steal the idea. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On Wednesday 22 April 2015 06:57:04 andy pugh wrote: On 22 April 2015 at 05:44, Gregg Eshelman g_ala...@yahoo.com wrote: Same concept with a belt https://www.youtube.com/watch?v=OdJoVh6DRPA The Bell-Everman ServoBelt is really very clever. If I was building a router/plasma I would certainly steal the idea. Kewl! Certifiable slicker than snot on a doorknob. I can see why they would patent it. I wonder how long till it would take to stretch enough to not lay dead flat on the track? However, I have a belt, not as wide, white that greatly resembles that one on my z drive, well tensioned about 5 years ago, and has not lost any of that tension that I can detect since. So the white stuff seems to be good, kevlar/dacron back I assume. Here, it would appear the only real tension would be between the motor pinion and the bottom of the rollers holding it to the track. IOW no tension end to end on the belt except for the length in the loop. Clamped as shown on each end, it ought to just lay there. I am impressed. Very impressed. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
Keep in mind you don't have to get the table absolutely perfect. Fit a wood/MDF backing board on the table then skim it flat usign your router head. Even if the machine is slightly twisted this will compensate for the twist. It pays to use the biggest cutter your spindle will handle and run at the highest feed rate possible otherwise it takes forever. Les On 22/04/2015 05:44, Gregg Eshelman wrote: First you need a level assembly area. That can be as basic as four jack stands with flat plates on top, all carefully shimmed to the exact height/level. Weld the bases down to steel plates so weight can be piled on. Put the pieces of the frame on the stands, check for level, clamp then tack weld to each other and to the stands. Alternate welding short bits at each corner. For big frames you'll need stands in the middle of the long sections. Once you have the main frame welded together flat and true you can weld on other pieces as you build it upside down. Cut it loose from the stands, flip over, tack back down and finish the top. Or if you welded legs on while it was on the stands, move it to its final location, level it and attach it to the floor then finish welding on the top side parts. Or you could start by attaching the legs to the floor, shimming them all to be level with each other, then build the table in place. Once you get enough pieces welded together it's not going to bend or twist. -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
Hi Gene, I believe the lower belt is glued to the track so it cannot move, effectively making it a rack. Les On 22/04/2015 13:02, Gene Heskett wrote: Certifiable slicker than snot on a doorknob. I can see why they would patent it. I wonder how long till it would take to stretch enough to not lay dead flat on the track? -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On 4/20/2015 5:41 PM, Jack Coats wrote: If you want to build something in that range, but have a larger and pretty rigid rig, consider Mechmate.com ... It is a real DIY project, normally uses NEMA 32 motors, but if you have some good 24's might work. Still check out their forums. Plans cost $100, normal build costs for everything go anywhere from $3K to $8 or 10K USD, depending on what you have and accountability in your area. He's built a CNC router already, he should have the skill to build a metal framed one without needing to pay for plans. There's so much free info on the web and a large number of other DIY builds to snag ideas from... I also see plenty of just add... metal gantry router table kits on Craigslist. Those are usually built up from aluminum extrusion with a few custom CNC milled pieces for the gantry ends. If the wood framed router is large enough and the main gripe is having to periodically snug up the bolts and some lack of rigidity - how about replacing the woodwork on your woodworking machine with metal? If you don't have the tools to precision cut the parts, find a metal supply shop that can cut the pieces to exact lengths. Replace the main frame with steel and the gantry (assuming it is a gantry table) with aluminum for lighter weight. Depending on how hefty the current gantry is constructed, the aluminum could end up lighter yet stiffer. Shouldn't be difficult to design it so all the current drive system and electronics will directly transfer. If the drives are by belt, chain or rack and pinion it would be relatively simple to make the metal version larger. Add more rack or chain links or buy longer belts. If it's screw drive then increasing the size gets costly quick due to needing new, longer screws. If only screws could be added onto like chains and racks... If it's screw drive then I'd look into building an all new, metal frame, router then spiffing up the old one nice and tight and clean then selling it. Y'know, I bet biscuit joints and some strategically placed metal corner brackets would keep the wood frame from loosening. 'Course then the parts would be permanently attached to each other. https://www.youtube.com/watch?v=x6kIipnVVOc --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On Tuesday 21 April 2015 08:15:10 Erik Friesen wrote: www.aercon.net/utilities/photos/SANY0864.JPG www.aercon.net/utilities/photos/SANY0865.JPG www.aercon.net/utilities/photos/SANY0866.JPG www.aercon.net/utilities/photos/SANY0867.JPG Its not that the wood gets loose, its a number of factors, Probably wood compression and moisture movement issue, along with bearing issues. I purchased the rail bearing assemble from cncrouterparts, and while they are fine for a hobby mill, I find that they need to be tightened every 100 hours or so. Also, trash ends up running on the bearing surface. Perhaps my sights are set too high here, but I have looked at this - http://www.ebay.com/itm/261855407885 - as well, but it looks a bit flimsy on the X axis to me. Also, how ever do you get the thing from twisting? Looking at that pix, I see the same flexure as you in that lightweight gantry riser. That is not even remotely close to being stiff enough to carve steel. Even alu would need light cuts, and a fractional pause in the corners for that to catch up IF the tool is sharp. But in alu, the tool is not going to stay sharp long enough to matter if not doing it submerged in an oxygen displacing bath (water based is out), or drowning in a directed mist of oil such as safflower cooking oil (for its higher flashpoint). Either one presents itself as a messy affair. BTDT, several times. Nice job when done but the cleanup? At the end of the job, that 2 oz of safflower oil was a fog in the shop with about a 20 foot estimated visibility range and all over my glasses not to mention the air I was breathing. :( I find it hard to understand how you weld up your own frame and get it flat and square, unless you have the right tools to do so. I cut a lot of 12x12 material into little pieces, so flatness and rigidity is quite important to me. I want to stick a piece of material on the bed and be able to have the part heights come out within 3 thousanths or so, assuming the material has a flat bottom. On Tue, Apr 21, 2015 at 5:58 AM, Mark Wendt wendt.m...@gmail.com wrote: On Mon, Apr 20, 2015 at 6:04 PM, Erik Friesen e...@aercon.net wrote: I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/categor y=8927047 http://xzerocnc.com/raptor.htm Erik, Take a look at http://www.cncrouterparts.com/pro-cnc-machine-kits-c-47_54.html Mark -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_ SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF
Re: [Emc-users] Cnc routers
The parts sold as the kit are just the motion control portion. The support structure is part of the flexibility that is up to the end user. A sturdy base that doesn't grow and shrink with humidity is needed, but you don't need to weld and you don't need a 6' X 10' granite surface plate. Most people will build a machine base (perhaps incorporating machine guarding and dust collection enclosure) from 80/20 or Misumi aluminum extrusion. Design it to be rigid and to resist torsional flexing. It doesn't need to be optically flat. Many people will build it using precut pieces (Misumi is particularly good for accurate and repeatable pre-cut lengths) so it should be square when assembled, but your floor won't be level so use machine base feet to level the machine. Null the spindle runout with shims, and then have the router itself machine a spoil board so the top surface is flat relative to the spindle. If you're not using a spoil board, another trick is to put legs with machine base levelers every two feet and use a dial indicator to level the top of the bed to the spindle. It's not quite as tedious as it sounds, and the commercial CNC routers aren't infinitely rigid either so they'll need the same sort of leveling tricks. On 04/21/2015 08:15 AM, Erik Friesen wrote: Perhaps my sights are set too high here, but I have looked at this - http://www.ebay.com/itm/261855407885 - as well, but it looks a bit flimsy on the X axis to me. Also, how ever do you get the thing from twisting? I find it hard to understand how you weld up your own frame and get it flat and square, unless you have the right tools to do so. I cut a lot of 12x12 material into little pieces, so flatness and rigidity is quite important to me. I want to stick a piece of material on the bed and be able to have the part heights come out within 3 thousanths or so, assuming the material has a flat bottom. -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On Mon, Apr 20, 2015 at 6:04 PM, Erik Friesen e...@aercon.net wrote: I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm Erik, Take a look at http://www.cncrouterparts.com/pro-cnc-machine-kits-c-47_54.html Mark -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
www.aercon.net/utilities/photos/SANY0864.JPG www.aercon.net/utilities/photos/SANY0865.JPG www.aercon.net/utilities/photos/SANY0866.JPG www.aercon.net/utilities/photos/SANY0867.JPG Its not that the wood gets loose, its a number of factors, Probably wood compression and moisture movement issue, along with bearing issues. I purchased the rail bearing assemble from cncrouterparts, and while they are fine for a hobby mill, I find that they need to be tightened every 100 hours or so. Also, trash ends up running on the bearing surface. Perhaps my sights are set too high here, but I have looked at this - http://www.ebay.com/itm/261855407885 - as well, but it looks a bit flimsy on the X axis to me. Also, how ever do you get the thing from twisting? I find it hard to understand how you weld up your own frame and get it flat and square, unless you have the right tools to do so. I cut a lot of 12x12 material into little pieces, so flatness and rigidity is quite important to me. I want to stick a piece of material on the bed and be able to have the part heights come out within 3 thousanths or so, assuming the material has a flat bottom. On Tue, Apr 21, 2015 at 5:58 AM, Mark Wendt wendt.m...@gmail.com wrote: On Mon, Apr 20, 2015 at 6:04 PM, Erik Friesen e...@aercon.net wrote: I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm Erik, Take a look at http://www.cncrouterparts.com/pro-cnc-machine-kits-c-47_54.html Mark -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
On 4/21/2015 6:15 AM, Erik Friesen wrote: Perhaps my sights are set too high here, but I have looked at this - http://www.ebay.com/itm/261855407885 - as well, but it looks a bit flimsy on the X axis to me. Also, how ever do you get the thing from twisting? There are software ways to run a gantry with two motors and keep them in synch. Many 3D printers do that for the Z axis. My preference is a mechanical linkage. Torchmate runs a shaft across their gantry to a rack and pinion on both sides. If you want lengthwise screws you can connect them at both ends with chains or belts. Another method uses a cross shaft on the gantry with stationary chains or belts on the sides that loop through sprockets or cogged pulleys. I've seen that method with a belt to run the tool carriage across the gantry. YouTube videos of homebrew/DIY CNC gantry machines show many different ways to put them together. Here are just three of the large number. Chain drive https://www.youtube.com/watch?v=0MHl2N8viKc Same concept with a belt https://www.youtube.com/watch?v=OdJoVh6DRPA Chains with a cross shaft https://www.youtube.com/watch?v=vETkf1sqo3M I find it hard to understand how you weld up your own frame and get it flat and square, unless you have the right tools to do so. First you need a level assembly area. That can be as basic as four jack stands with flat plates on top, all carefully shimmed to the exact height/level. Weld the bases down to steel plates so weight can be piled on. Put the pieces of the frame on the stands, check for level, clamp then tack weld to each other and to the stands. Alternate welding short bits at each corner. For big frames you'll need stands in the middle of the long sections. Once you have the main frame welded together flat and true you can weld on other pieces as you build it upside down. Cut it loose from the stands, flip over, tack back down and finish the top. Or if you welded legs on while it was on the stands, move it to its final location, level it and attach it to the floor then finish welding on the top side parts. Or you could start by attaching the legs to the floor, shimming them all to be level with each other, then build the table in place. Once you get enough pieces welded together it's not going to bend or twist. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Cnc routers
I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
If you want to build something in that range, but have a larger and pretty rigid rig, consider Mechmate.com ... It is a real DIY project, normally uses NEMA 32 motors, but if you have some good 24's might work. Still check out their forums. Plans cost $100, normal build costs for everything go anywhere from $3K to $8 or 10K USD, depending on what you have and accountability in your area. Most folks build a 48x96 nominal cutting area machines that are about 6' wide and 10' long (again very rough dimensions). Some have been built much larger and some smaller. Critical parts that are laser cut and bent can be purchased from a single source. Sources for all techie stuff is available on the forums, but it is your build so use what you want (please don't cheap out, you get what you pay for in the long run, IMHO anyway). You will have to source steel locally and weld (easy welding, mainly rookie welders building these so it does not have to be 'pretty' welds). On Mon, Apr 20, 2015 at 5:04 PM, Erik Friesen e...@aercon.net wrote: I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ... Jack Whatever you do, work at it with all your heart... Colossians 3:23 Anyone who has never made a mistake, has never tried anything new. - Albert Einstein You don't manage people; you manage things. You lead people. - Admiral Grace Hopper, USN Tell me and I forget. Teach me and I remember. Involve me and I learn. - Ben Franklin -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
If you're looking for a good compromise between building and buying a commercially available turn-key CNC router, you might be interested in a guy on eBay who sells kits. I bought his commercial (linear rail) 24 X 49 kit almost two years ago. I use LinuxCNC, of course. I bought it bare (no electronics) and added my own stepper motors and drivers to save money and get the motors and drivers I wanted. I'm reasonably close to the eBay seller, so I picked it up to save $200 in shipping. I built it in my brother's garage so he could use it for his woodworking. I used it a couple of nights ago to cut 50 holes in a 12 X 24 X 1 plastic sheet to make an ER20 tool rack for my current CNC milling machine project and it worked very well. It's a complete kit, so it's almost as easy to assemble as most of the commercially available CNC routers that require some on-site assembly. http://www.ebay.com/itm/261855407885 I liked it so well that I bought a 24 X 24 linear rod CNC router kit from him for my basement shop. http://www.ebay.com/itm/131488198442 That project is now slated for later this summer, after the mill, lathe and laser. I'm on a CNC project roll! I'll build an 80/20 machine base for it with the vacuum dust collection in the base and the top will be fully enclosed to contain the dust and noise. There really isn't much to these CNC router kits. You could simply buy the ball screws and linear rail on eBay from Chinese suppliers and they're sometimes available as a CNC router motion control kit. Then you could make a few simple aluminum brackets and plates, and design the enclosure and 80/20 aluminum extrusion machine base to provide the support for the motion control components. You'd probably save several hundred dollars over buying the kit from Ed on eBay, but as much as I enjoy that sort of machine design, I decided that I'd be better served by purchasing the kit and spending my time assembling and wiring rather than designing and building. YMMV. He has a 4' X 8' CNC router kit as well, and some optimized for plasma cutting too. The prices are significantly less than the other systems you were considering, and these kits offer complete flexibility in what electronics you use. I buy a 24 X 28 X 12 powder coated and stainless shop cabinet from Seville to use as an electrical enclosure. https://www.sevilleclassics.com/storage_wall_cabinet_ultra_hd I screw the parts to the back wall, add some wireway, and wire the electrical panel. A CNC electrical panel takes about a day to build and wire, usually spaced over a week or so. The rest of the project takes another day or two, total. I really don't think it's all that much more difficult than assembling and setting up a commercial CNC router. If you can live without the tool change spindle, this might be a good way to go. Add a three phase water cooled spindle motor and VFD (~$300 on eBay) and about $600 worth of motors and electronics, and you're good to go. On 04/20/2015 06:04 PM, Erik Friesen wrote: I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cnc routers
Don't assume those offering full setups won't sell you just the mechanical part.Most of the world is much more open to any sort of negotiation this culture. Specs, completeness, etc are often all negotiable. Craig I have been casting around for a new pre built router in the $5 to $10K range, however it seems a lot of routers come with the whole kit and caboodle, which means it doesn't use linuxcnc and comes with the computer and all. I have too much time invested in different custom things to switch to something else. Does this leave me with building something myself again? I currently have an oak framed router (16x20 work area), gecko drives, mesa 5i25, etc, but I get tired of tightening it up every month. I'd like to find something where I could put my existing equipment to use. Some I have looked over - http://www.camaster.com/product/stinger-i/ http://www.blurrycustoms.com/#!store/cu2p/!/IMAVX/p/34881281/category=8927047 http://xzerocnc.com/raptor.htm -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15utm_medium=emailutm_campaign=VA_SF ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
