[Emc-users] Found your belt dimensions Re: micro-v belts, smaller
Have a look at http://beltpalace.com/heavy-duty-belts-poly-v-ribbed--j-section.html Says they have a limited selection online, call for more info. After some more digging, what you need is a 360mm, J section, 3 rib belt AKA a 360J3. $4.57 usually in stock here http://www.industrialzone.com/369806-gates-360j3.html?gclid=CK-NvfbxpMUCFQiDfgodcoMAFA 80 to 1000 mm, how many ribs do you want? http://www.beltsforanything.com/site59.php Dimensions for J section, also H and K which are a bit smaller. http://www.torquetrans.com/custom-multi-ribbed --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] My crashomatic lathe box
On 5/2/2015 6:50 AM, Erik Christiansen wrote: Not sure if this is the latest version, but have you run an eye over the things to check here?: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?TroubleShooting#Checking_the_RealTime_subsystem That pcspkr is sufficiently vague to make one wonder. PC Speaker? The thing that goes beep, or if you're a 1980's DOS game programmer it goes like this http://www.oldskool.org/sound/pc/examples/Turbo_Outrun/speaker1.mp3 --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] charge pump start at Axis startup (if no Estop)
Oops, had iocontrol.0.user-enable-out commented out in my flailing about with the config yesterday….nevermind -Tom On May 2, 2015, at 6:45 PM, Sebastian Kuzminsky s...@highlab.com mailto:s...@highlab.com wrote: The iocontrol manpage says: iocontrol.0.user-enable-out (Bit, Out) FALSE when an internal estop condition exists Experimenting with 2.7.0~pre6 here shows that user-enable-out follows the E-stop button in Axis, which is what i think you want. -- 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
[Emc-users] 8 rotary table indexing chart
I bought a no name 8 rotary table and found that the Vertex DP-3 index plate set fits perfectly. After looking on the web for several hours for an indexing chart, to no avail. I did one myself. The newer index plate set allows divisions up to 100 without any missing values. - Original Message - From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Saturday, May 2, 2015 5:54:23 AM Subject: Emc-users Digest, Vol 109, Issue 9 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: micro-v belts, smaller (Erik Christiansen) 2. Re: micro-v belts, smaller (Gene Heskett) 3. My crashomatic lathe box (Gene Heskett) 4. Re: micro-v belts, smaller (Gene Heskett) 5. Re: Computer crashing. Re: micro-v belts, smaller (Mark Wendt) 6. Re: My crashomatic lathe box (Erik Christiansen) 7. Re: Computer crashing. Re: micro-v belts, smaller (Gene Heskett) -- Message: 1 Date: Sat, 2 May 2015 19:30:56 +1000 From: Erik Christiansen dva...@internode.on.net Subject: Re: [Emc-users] micro-v belts, smaller To: emc-users@lists.sourceforge.net Message-ID: 20150502093055.GA3422@ratatosk Content-Type: text/plain; charset=utf-8 On 01.05.15 05:55, Gene Heskett wrote: If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) Gene, If you need 380 mm, but 600 mm is the shortest generally available, is there room for a pair of idler pulleys off to the side, making the whole belt path resemble a boomerang? The boomerang arms would be significantly less than 15 cm (6) with 60 cm (2') belt length, so it wouldn't take up a lot of room. (The outer idler would be larger than the inner, to avoid belt fouling.) Might need a new belt cover if it's on top of the minimill, though. There's probably no belt length calculator for that scenario, but four cardboard wheels cut from a beer carton, and a bit of string, ought to suffice for non-computer modelling, I figure. If you find a good price on poly-v belts of either length, please post the link. It might help me start on a project still on the back burner. (There's a few of those.) Erik -- Message: 2 Date: Sat, 2 May 2015 05:52:35 -0400 From: Gene Heskett ghesk...@wdtv.com Subject: Re: [Emc-users] micro-v belts, smaller To: emc-users@lists.sourceforge.net Message-ID: 201505020552.35243.ghesk...@wdtv.com Content-Type: Text/Plain; charset=iso-8859-1 On Saturday 02 May 2015 05:30:56 Erik Christiansen wrote: On 01.05.15 05:55, Gene Heskett wrote: If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) Gene, If you need 380 mm, but 600 mm is the shortest generally available, is there room for a pair of idler pulleys off to the side, making the whole belt path resemble a boomerang? The boomerang arms would be significantly less than 15 cm (6) with 60 cm (2') belt length, so it wouldn't take up a lot of room. (The outer idler would be larger than the inner, to avoid belt fouling.) Might need a new belt cover if it's on top of the minimill, though. There's probably no belt length calculator for that scenario, but four cardboard wheels cut from a beer carton, and a bit of string, ought to suffice for non-computer modelling, I figure. If you find a good price on poly-v belts of either length, please post the link. It might help me start on a project still on the back burner. (There's a few of those.) Erik I expect I will, Erik. I do tend to report progress as you have observed. I just woke up with another thought about the crashing. Something in that install, same install cd was used, is tickling the drive led at about 1.5 second intervals. The
Re: [Emc-users] lathe spindle motor accel/decel recommendations
On 05/03/2015 01:48 PM, Tom Easterday wrote: I am retrofitting an EMCO 120P lathe with new controls. It has a spindle encoder so will do threading/tapping, etc. The 3HP Black Max motor and GS2 vfd combination (with braking resistor) can drive it fwd/rev 0-3500 rpm. It can accelerate from zero to full speed, or decelerate from full speed to stop, in 0.1 - 60 seconds depending on settings (0.1 seconds is quite exciting :-O). I am wondering what recommendations folks have for the accel/decel settings that are reasonable to use. At the lowest settings even small transitions in speed can be felt/heard so I assume having abrupt parameters isn’t really helpful but I don’t have a feel for what is. If you want to do rigid tapping, you need to select a spindle speed change rate that will allow the Z axis to follow the change in speed. You can always set the VFD to do it faster, and then use a HAL component to make the speed change more gradual. The relationship between spindle reverse and Z axis following is, of course, scaled by the thread pitch! So, fine pitch threads can be done with more abrupt speed changes that coarse ones. I've got something like 0.7 second speed ramp selected in the VFD, but have something a little slower set in the hal files. I used the lowpass component, but the limit component would also be able to do this. Jon -- 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] 8 rotary table indexing chart
Did you happen to check the Machinery Handbook for the tables? Ray --J. Ray Mitchell Jr. jrmitche...@gmail.com (818)324-7573 The dogmas of the quiet past, are inadequate to the stormy present. The occasion is piled high with difficulty, and we must rise with the occasion. As our case is new, so we must think anew and act anew. We must disenthrall ourselves, and then we shall save our country.*Abraham Lincoln http://www.quotationspage.com/quotes/Abraham_Lincoln/*, *Annual message to Congress, December 1, 1862* *16th president of US (1809 - 1865)* On Sun, May 3, 2015 at 2:15 PM, richsh...@comcast.net wrote: I bought a no name 8 rotary table and found that the Vertex DP-3 index plate set fits perfectly. After looking on the web for several hours for an indexing chart, to no avail. I did one myself. The newer index plate set allows divisions up to 100 without any missing values. - Original Message - From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Saturday, May 2, 2015 5:54:23 AM Subject: Emc-users Digest, Vol 109, Issue 9 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: micro-v belts, smaller (Erik Christiansen) 2. Re: micro-v belts, smaller (Gene Heskett) 3. My crashomatic lathe box (Gene Heskett) 4. Re: micro-v belts, smaller (Gene Heskett) 5. Re: Computer crashing. Re: micro-v belts, smaller (Mark Wendt) 6. Re: My crashomatic lathe box (Erik Christiansen) 7. Re: Computer crashing. Re: micro-v belts, smaller (Gene Heskett) -- Message: 1 Date: Sat, 2 May 2015 19:30:56 +1000 From: Erik Christiansen dva...@internode.on.net Subject: Re: [Emc-users] micro-v belts, smaller To: emc-users@lists.sourceforge.net Message-ID: 20150502093055.GA3422@ratatosk Content-Type: text/plain; charset=utf-8 On 01.05.15 05:55, Gene Heskett wrote: If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) Gene, If you need 380 mm, but 600 mm is the shortest generally available, is there room for a pair of idler pulleys off to the side, making the whole belt path resemble a boomerang? The boomerang arms would be significantly less than 15 cm (6) with 60 cm (2') belt length, so it wouldn't take up a lot of room. (The outer idler would be larger than the inner, to avoid belt fouling.) Might need a new belt cover if it's on top of the minimill, though. There's probably no belt length calculator for that scenario, but four cardboard wheels cut from a beer carton, and a bit of string, ought to suffice for non-computer modelling, I figure. If you find a good price on poly-v belts of either length, please post the link. It might help me start on a project still on the back burner. (There's a few of those.) Erik -- Message: 2 Date: Sat, 2 May 2015 05:52:35 -0400 From: Gene Heskett ghesk...@wdtv.com Subject: Re: [Emc-users] micro-v belts, smaller To: emc-users@lists.sourceforge.net Message-ID: 201505020552.35243.ghesk...@wdtv.com Content-Type: Text/Plain; charset=iso-8859-1 On Saturday 02 May 2015 05:30:56 Erik Christiansen wrote: On 01.05.15 05:55, Gene Heskett wrote: If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) Gene, If you need 380 mm, but 600 mm is the shortest generally available, is there room for a pair of idler pulleys off to the side, making the whole belt path resemble a boomerang? The boomerang arms would be significantly less than 15 cm (6) with 60 cm (2') belt length, so it wouldn't take up a lot of room. (The outer idler would be larger than the inner, to avoid belt fouling.) Might need a new belt cover if it's on top of the minimill, though. There's
Re: [Emc-users] My crashomatic lathe box, update, sorta
On Sunday 03 May 2015 20:51:56 Gene Heskett wrote: On Saturday 02 May 2015 19:58:00 Gene Heskett wrote: Chris Radek wanted me to run memtest+ on that box overnight. I just looked at /boot/grun/grub.cfg and the choice does exest in that file. And I'm tired s/grun/grub So, ok, I'll byte. What is the magic keyboard incantation that will allow the grub boot menu to be seen? It goes sailing right on by it. Thats still a 10.94-4 LTS install, running LCNC 2.6.7. Likewise 10.04-4 LTS. Thanks. Cheers, Gene Heskett 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 -- 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
[Emc-users] 7/G8 is driving me up a wall.
Greetings; Someone on irc said touchoff gives a choice when you have entered the first number. Not on 2.6.7, the only thing it says is radius, so I have to keep a pocket calc, to do a / 2. on the size the caliper reads for the actual touchoff data entry. IOW, it takes radius inputs only. Putting X in diameter mode changes nothing in re this. It seems to me I ought to be able to enter the diameter if I am running in that mode, or the radius if running in that mode. But touch off, and the dro which does follow the touch off if you enter radius,it almost works. I say almost, but the ending small end diameter is well oversized. The scale factor on this x axis has been tested and verified several times. But starting at 38mm diameter, and ending at 22.mm in diameter, the one cut I did today without it crashing, using a while [#_x_tmp gt #_x_end] (where #_x_end = 22.00mm) ended normlly at about 25.75mm in diameter, with half the expected 3/4 a foot taper. So somethings all aglay. And fighting with a touchoff that demands a radius regardless of the G7/G8 mode set is a prime distraction as it derails any train of analytical thought one might have when looking for the real problem. Frustrating even. Thanks Guys. 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 -- 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] lathe spindle motor accel/decel recommendations
On May 3, 2015, at 5:21 PM, Jon Elson el...@pico-systems.com wrote: If you want to do rigid tapping, you need to select a spindle speed change rate that will allow the Z axis to follow the change in speed. You can always set the VFD to do it faster, and then use a HAL component to make the speed change more gradual. The relationship between spindle reverse and Z axis following is, of course, scaled by the thread pitch! So, fine pitch threads can be done with more abrupt speed changes that coarse ones. I've got something like 0.7 second speed ramp selected in the VFD, but have something a little slower set in the hal files. I used the lowpass component, but the limit component would also be able to do this. Thanks Jon. So you change the value in Hal depending on the threads you want to cut? Or you just have a setting that can do either and may not be as fast as possible for high thread count? -Tom -- 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] 8 Rotary Table Index Chart
The FIRST place I looked. Since the item does not have the standard 40:1 ratio, the chart in my 22nd Edition did not have what I was looking for. I did a very nice two pager in Word, have to find out how to upload it correctly. Sorry about the delay. - Original Message - From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Sunday, May 3, 2015 3:30:43 PM Subject: Emc-users Digest, Vol 109, Issue 13 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: lathe spindle motor accel/decel recommendations (Jon Elson) 2. Re: 8 rotary table indexing chart (jrmitchellj .) -- Message: 1 Date: Sun, 03 May 2015 16:21:30 -0500 From: Jon Elson el...@pico-systems.com Subject: Re: [Emc-users] lathe spindle motor accel/decel recommendations To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Message-ID: 5546915a.6000...@pico-systems.com Content-Type: text/plain; charset=UTF-8; format=flowed On 05/03/2015 01:48 PM, Tom Easterday wrote: I am retrofitting an EMCO 120P lathe with new controls. It has a spindle encoder so will do threading/tapping, etc. The 3HP Black Max motor and GS2 vfd combination (with braking resistor) can drive it fwd/rev 0-3500 rpm. It can accelerate from zero to full speed, or decelerate from full speed to stop, in 0.1 - 60 seconds depending on settings (0.1 seconds is quite exciting :-O). I am wondering what recommendations folks have for the accel/decel settings that are reasonable to use. At the lowest settings even small transitions in speed can be felt/heard so I assume having abrupt parameters isn?t really helpful but I don?t have a feel for what is. If you want to do rigid tapping, you need to select a spindle speed change rate that will allow the Z axis to follow the change in speed. You can always set the VFD to do it faster, and then use a HAL component to make the speed change more gradual. The relationship between spindle reverse and Z axis following is, of course, scaled by the thread pitch! So, fine pitch threads can be done with more abrupt speed changes that coarse ones. I've got something like 0.7 second speed ramp selected in the VFD, but have something a little slower set in the hal files. I used the lowpass component, but the limit component would also be able to do this. Jon -- Message: 2 Date: Sun, 3 May 2015 15:30:32 -0700 From: jrmitchellj . jrmitche...@gmail.com Subject: Re: [Emc-users] 8 rotary table indexing chart To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Message-ID: CADbHY27c0JTZ03UV6uotEFHQbssgbua3WGfaN=zl_lwzeaf...@mail.gmail.com Content-Type: text/plain; charset=UTF-8 Did you happen to check the Machinery Handbook for the tables? Ray --J. Ray Mitchell Jr. jrmitche...@gmail.com (818)324-7573 The dogmas of the quiet past, are inadequate to the stormy present. The occasion is piled high with difficulty, and we must rise with the occasion. As our case is new, so we must think anew and act anew. We must disenthrall ourselves, and then we shall save our country.*Abraham Lincoln http://www.quotationspage.com/quotes/Abraham_Lincoln/*, *Annual message to Congress, December 1, 1862* *16th president of US (1809 - 1865)* On Sun, May 3, 2015 at 2:15 PM, richsh...@comcast.net wrote: I bought a no name 8 rotary table and found that the Vertex DP-3 index plate set fits perfectly. After looking on the web for several hours for an indexing chart, to no avail. I did one myself. The newer index plate set allows divisions up to 100 without any missing values. - Original Message - From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Saturday, May 2, 2015 5:54:23 AM Subject: Emc-users Digest, Vol 109, Issue 9 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: micro-v belts, smaller (Erik Christiansen) 2. Re:
Re: [Emc-users] My crashomatic lathe box, update, sorta
On Saturday 02 May 2015 19:58:00 Gene Heskett wrote: Chris Radek wanted me to run memtest+ on that box overnight. I just looked at /boot/grun/grub.cfg and the choice does exest in that file. So, ok, I'll byte. What is the magic keyboard incantation that will allow the grub boot menu to be seen? It goes sailing right on by it. Thats still a 10.94-4 LTS install, running LCNC 2.6.7. Thanks. 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 -- 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] lathe spindle motor accel/decel recommendations
On 05/03/2015 08:32 PM, Tom Easterday wrote: Thanks Jon. So you change the value in Hal depending on the threads you want to cut? Or you just have a setting that can do either and may not be as fast as possible for high thread count? Oh, no, certainly not! I chose some sane values that would allow fairly fast spin-up/spin-down times, and then have to remember that coarse threads need to be done at somewhat lower RPM than fine ones. This actually works out quite well. I can do 4-40 threads at 1000 RPM, which is quite cool, and gives insane tap life. I have never, to my knowledge, worn out a 4-40 tap! I will use it for thousands of holes, and then break it due to a setup error. I use these combo drill-taps that run about $8 each, and allow ne to do essentially a spot-drill-tap operation without a toolchange. In general, the coarser thread pitches accompany larger tap diameters, so tapping at 500 RPM for a 1/4 tap would likely be reasonable, too. Jon -- 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] Found your belt dimensions Re: micro-v belts, smaller
On Sunday 03 May 2015 02:05:35 Gregg Eshelman wrote: Have a look at http://beltpalace.com/heavy-duty-belts-poly-v-ribbed--j-section.html Says they have a limited selection online, call for more info. After some more digging, what you need is a 360mm, J section, 3 rib belt AKA a 360J3. $4.57 usually in stock here http://www.industrialzone.com/369806-gates-360j3.html?gclid=CK-NvfbxpM UCFQiDfgodcoMAFA 80 to 1000 mm, how many ribs do you want? http://www.beltsforanything.com/site59.php Dimensions for J section, also H and K which are a bit smaller. http://www.torquetrans.com/custom-multi-ribbed Bookmarked printed, just what doc Gene ordered, thank you very much Gregg. Now, I have 1/2 of pulley width for each pulley section. From those drawings, that infers that in 1/2 I'd have room for 5 ribs of a j belt. That would be 15/32 wide, or in metric, 11.90625mm wide. That would have sharp outer pulley edges though, so I am inclined to make and get the 4 rib versions leaving a relatively wide outer edge. The next consideration would be the smaller pulleys reduced radii, and belt heating when its wrapped around a 35mm pulley. Not to mention spindle bearing heating. When in the step up mode 5k revs is going to be close to 10k revs on the smaller pulley bearings. I assume that has to generate additional heat in the bearings. With the diameter of my starter steel, the flange for the draw and jack bolts is not going to leave enough real estate, determined by the results yesterday. So I'll have to find larger OD piece of shafting for the raw starter. This one now has too big a center hole drilled for a taperlock to fit an 8mm motor shaft I think as the last drill before I tore up the wiring was a hair under 10mm. So that one will not be salvageable for the motors hub. There is however, more steel sticking out of the chuck. I just need to make even more swarf. :) I should have a bigger piece in the midden heap on the floor under the shelf that holds the keyboard etc for the mill. If not, I know exactly where to go get it. But it is about a 100 mile round trip, over some roads that would break a snakes back. This is after all, West Virginia. We have a surplus of hills they built the roads around. Thanks Gregg. 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 -- 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
[Emc-users] Machine limits question
Greetings all; Is there now, a gcode mode command that when invoked, would cause a loop to iterate to the next pass when a machine limit has been hit? I am out of X backout trying to do this taperlock in a 39mm diameter steel round. I am attempting to scale both motions by counting passes so that by the time the tool is clear, that pass will only move that far, which will just barely keep it inside the x limit, which is about .1mm from tripping the switch I use for homeing, which in turn is about .1mm from the mechanical limit. But if there is such a mode, it will save me from writing the code to scale the motions to keep it inside its working envelope. My toy lathe of course... If it isn't available, maybe this could be a feature request? I'd get my coat now, but its nicely warmed up, so I guess I'll just go write some scaling code. ;-) 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 -- 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
[Emc-users] lathe spindle motor accel/decel recommendations
I am retrofitting an EMCO 120P lathe with new controls. It has a spindle encoder so will do threading/tapping, etc. The 3HP Black Max motor and GS2 vfd combination (with braking resistor) can drive it fwd/rev 0-3500 rpm. It can accelerate from zero to full speed, or decelerate from full speed to stop, in 0.1 - 60 seconds depending on settings (0.1 seconds is quite exciting :-O). I am wondering what recommendations folks have for the accel/decel settings that are reasonable to use. At the lowest settings even small transitions in speed can be felt/heard so I assume having abrupt parameters isn’t really helpful but I don’t have a feel for what is. Thanks, -Tom -- 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] charge pump start at Axis startup (if no Estop)
On May 2, 2015, at 6:45 PM, Sebastian Kuzminsky s...@highlab.com wrote: The iocontrol manpage says: iocontrol.0.user-enable-out (Bit, Out) FALSE when an internal estop condition exists Experimenting with 2.7.0~pre6 here shows that user-enable-out follows the E-stop button in Axis, which is what i think you want. This is not the case on my machine for some reason. iocontrol.0.user-enable-out does not follow my estop button. My estop button does cause Axis’ estop button to toggle, as it should. I do see that iocontrol.0.emc-enable-in does follow my estop button…. -Tom -- 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
