On 11 Oct 2017, at 05:39, John Dammeyer wrote: > Boy oh boy is 150ipm ever fast on the Y axis when there's only about 7" of > travel. I think I may just throttle back jogging to 40ipm but allow rapids > the full 150. > > Here are some links to photos. The Mill is equivalent to the Grizzly G3616 > but from House of Tools in Canada. No longer around nor is the mill. Excuse > the mess. > > The starting point: > http://www.autoartisans.com/cnc/YAxisCastings-1.jpg > Instead of a pair of ball thrust bearings and no real radial load bearing I > switched to angular contact bearings. > Impressed by the efficient use of casting to make what would otherwise be a welded or fabricated conglomeration of parts. Did you cast your own or make the pattern?
Marcus > http://www.autoartisans.com/cnc/YAxisMachining-7.jpg > I turned some spacers and used the original nut to compress the works. The > bearings are arranged so I can reef on the nut without a problem because > preload on the bearings is done with a large spacer that presses on the outer > race. The inner races are tight together. 4:1 XL 0.50 pulleys and belts. > Motor is 90V, 7A DC Servo max 3000 RPM. 250 line encoder, leadscrew is 5 TPI. > > http://www.autoartisans.com/cnc/YAxisConversion-3.jpg > I haven't decided if I should add an oil hole or just grease the bearings. > Greasing seems to work on cars for thousands of miles. > > And finally the messy picture. Monitor, Keyboard, HP_UHU Driver on the top, > Power supply and BoB on the bottom. > Beagle with Xylotex cape and USB hub are also visible. > http://www.autoartisans.com/cnc/YAxisConversion-2.jpg > > The Knee has a Gecko stepper driver. The X axis will have the same Servo but > with 3:1 pulleys since it's lighter and has to move further so here faster > will be better. > > And obviously I want to build up my Homann Designs MODIO board into an MPG > Pendant. I've seen it operate with MACH3 and it's very responsive so should > be for LinuxCNC too? > > Anyway, limit and home switches are next. Then the X axis patterns and > castings. > > John > > > > > >> -----Original Message----- >> From: Dave Cole [mailto:linuxcncro...@gmail.com] >> Sent: October-10-17 3:49 PM >> To: emc-users@lists.sourceforge.net >> Subject: Re: [Emc-users] MachineKit on the BeagleBone Black >> >> John, >> Let me save you some time.� Unless you are retiring in the next couple >> of years and swearing off everything CNC...convert to LinuxCNC now.��� >> If you are not happy with the performance on the BBB right now.� Wait >> for a couple of years.�� It will get there via a different set of >> hardware or a different hardware version. Mach3 will not.��� Mach4 >> might... but you know more than me about that. >> If you want a tool that "just works" yet can be extended "reliably" via >> software,� LinuxCNC or Machinekit is where it is at. >> If you want both Mach3 and LinuxCNC, dual boot your PC. >> You won't regret it. >> >> Dave >> >> On 10/10/2017 3:34 PM, John Dammeyer wrote: >>> >>>> -----Original Message----- >>>> From: Dave Cole [mailto:linuxcncro...@gmail.com] >>>> Sent: October-10-17 11:17 AM >>>> To: emc-users@lists.sourceforge.net >>>> Subject: Re: [Emc-users] MachineKit on the BeagleBone Black >>>> >>>> Hi John, >>>> >>>> I am surprised that you are still talking about Mach3. ? I thought that >>>> Mach3 was suppose to be obsoleted by now >>>> and replaced by Mach4. ? What happened?? I've been out of the Mach3 loop >>>> for a while. >>>> >>>> Dave >>> Hi Dave, >>> Although the desire to rant here is really tempting I'll put a gag in my >>> mouth >> and tie my typing fingers together. Suffice to say: >>> I have a Delta 14" BabdSaw from 1939, A South Bend Heavy 10L from 1942, >> most of my other wood working tools are all at least 20 years old now. Even >> the ELS I designed and use on the SB Lathe is 10 years old. >>> >>> These are all "_Tools_" not an "_Experience_" like Apple, Microsoft and the >> Cell phone companies would like you to believe. >>> >>> MACH3 runs my CNC Router and can read files from AlibreCAD and AlibreCAM >> as can the cheap Arduino based 3D printer attached to a Pi2 which is attached >> via WiFi to Octoprint. Both effectively are tools that make parts for my >> work >> and my hobbies. >>> >>> Since MACH3 with a 1.16GHz Athlon with 1MB memory runs the CNC router >> and responds to keyboard arrows almost instantly it's the benchmark for all >> other CNC systems. Don't really need a new MACH4 "_Experience_" that is >> hardware licensed to my PC. >>> >>> Since I'm space constrained in the workshop I was really hoping I could use >>> a >> small processor to run CNC on the mill. That the Beagle can't do this to >> the >> same extent as MACH3 means that I have to consider finding space for a PC. >> And if I have to find space for a PC it only makes sense to have the same >> user >> interface I have on my CNC router. Then I can spend more time using the tool >> compared to having an experience. >>> >>> So I keep reminding myself before I fall off that cliff of spending many >>> hours >> trying to accomplish something (sadly been there many times) that these are >> tools that are supposed to work for me. >>> >>> John >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> Check out the vibrant tech community on one of the world's most >>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
