On Monday 24 October 2016 22:42:31 Gregg Eshelman wrote: > How about some pics of that modification?
You wouldn't see much, Gregg, that $9 (ebay) bob used individual 4 pin opto's, so I had axis start the spindle, used a scope to locate which one was carrying the pulse, removed it and put a 3/8" long wrapping wire jumper to take the signal across it. Spindle speed linearity went to a good straight line from something not even lincurve could correct. ATM that one is moderately well buried under all the other wiring in the power box for the G0704. I'll take the camera out and see if I can see the missing opto and the jumper replacing it. So I have specifically bought non-opto-isolated boards since, but the version I'm useing in the lathe build was made for mach ( their odd crap has flooded the low end market ) and so far I have found 2 input pins I can't use as mach dedicated them for estop & something else I've forgot. Further testing needed. Apparently mach has never done any of the spindle synchronized moves as these have no pins labled for a/b/z encoder input use. Lathes aren't so complex I can't work around it, but I did mount both of the ones I bought so I can use the other, P2 half of the 5i25 if I need it. Home & limit switches sort of stuff. Lots to do yet. The saddle design is such that I've almost got to put the cable chain to all the x related stuff on the front, or lay some SS pipes where they could be crushed by running into the tailstock across the top and right edge. Humm, thinking out loud, portable limit switch? Might be one way around that potential show stopper. Back to see if I can get some zz's in. [...] 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> ------------------------------------------------------------------------------ The Command Line: Reinvented for Modern Developers Did the resurgence of CLI tooling catch you by surprise? Reconnect with the command line and become more productive. Learn the new .NET and ASP.NET CLI. Get your free copy! http://sdm.link/telerik _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
