On Monday 30 December 2013 14:18:22 Chris Morley did opine: > > Date: Mon, 30 Dec 2013 10:50:04 +0400 > > From: aysta...@gmail.com > > To: emc-developers@lists.sourceforge.net > > Subject: Re: [Emc-developers] stepconf refactor > > > > simple conversion of units might do. e.g position/speed should be > > multiplied by 25.4, acceleration by 25.4*25.4. > > So that made ugly numbers in metric eg 203mm or 25.4 mm/s > > So I made it so changing the units reset the axis to default > values. eg metric: > maxvel = 25 > maxacc = 750 > homevel = 1.5 > on Z > minlim = 0 > maxlim = 200 > > The consequence of this is if you accidentally change the units > you will lose any entered data of those entries. > I could add a warning dialog about that. > > is 20 mm per rev a reasonable standard pitch for metric ?
I know I have toys, but mine are (where there are ball screws) either 2.5, or 5mm rev. My biggest ball screw is a 16mmx5mm. Where the acme screws still live, like the toy mill, 10mm .5mmrev, or for z a 1/2x10 tpi. IMO if filling in defaults for newbies, small enough that they are slow but it works, then the newbie asks and gets told how to speed it up. That of course may involve teaching the torque roll off of steppers when they are asked to run faster on limited voltage such as the TB6560 can tolerate, but being too slow, as opposed to so fast the steppers will just sit and buzz, slow seems the best as it will encourage the newbie to explore and learn. 2, 4 or more start screws are for you big fellers to play with. ;-) My $0.02, adjust for inflation since 1934 though. ;-) > Chris M Cheers, Gene -- "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> Reporter: "What would you do if you found a million dollars?" Yogi Berra: "If the guy was poor, I would give it back." A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
