On Saturday 03 September 2016 18:24:59 Kirk Wallace wrote: > I just finished a first pass at G76 tapered threading. > My code is here: > http://www.wallacecompany.com/tmp/G76/G76-7b.cc > > I have done about a minute's worth of testing so it may not work well. > Here are a couple plots: > http://www.wallacecompany.com/tmp/G76/Screenshot-g76_kw-1a.png > http://www.wallacecompany.com/tmp/G76/Screenshot-g76_kw-2a.png > > and notes: > http://www.wallacecompany.com/tmp/G76/path_notes.svg > > http://www.wallacecompany.com/tmp/G76/ > > This was prompted by trying to put together a manual entry together > but there were some issues that popped up that I need to work out: > http://www.wallacecompany.com/t_tmp/G76_doc/G76-2a.html > > Any comments are welcome.
I'll give it a good shakedown as soon as its in master-rt. I have some code that somewhat works, but is a bigger PITA to setup and run. ATM, and I'm DIW over the weekend as I forgot to engage the backgear late this after noon, the motor request was for 300 revs, it wound up to full revs and something in the box behind the motor popped, and the LM317 5 volt supply in the driver box also opened up. I have replaced the LM317 and its working again, but I've not turned the lathe around to see what made the pop in the motor controller box. In any event, I am DIW until I can get to TSC Tuesday and source another handfull of the nuts I am boring to 50 tpi threads, 2 of those, and one with a taper of 7 degrees, but still at 50 tpi. Since machine position reference has been lost, and I'll have to start all over again fine tuning, very very carefully as I an on the last chip for my internal threading tool. So it makes no diff to me whether I use my cobbled up code, or yours and I'd love to test it. ASAP once I have more nuts in hand. I'm working on, in my mind, an automatic e-stop to be triggered in 50 milliseconds if the motor is enabled, but no edges have come out of the encoder. I ought to be able to hack that into the hal file easy enough. What I need at the same time is a big red, flashing pop up thats says something to the effect of a "hey big dummy, the backgear is in neutral!" With the lever behind the headstock, its generally behind the mag base of a dial I keep stuck on the top of the headstock for centering work in the 4 jaw. 100% PEBKAC, but theres not a chair involved. Some days it doesn't pay to gnaw thru the straps and get up. Oh, I took the wipers off one end of the saddle & darned if they aren't leather, heavy stuff all of 5/32" thick. And the bottoms feel like 60 grit sandpaper. Felt, here we come while I don't have anything else to do over the weekend. Have a happy and fun times Labor Day weekend folks. 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> ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
