On Thursday 18 September 2014 09:48:12 [email protected] did opine And Gene did reply: > I'd also be interested in some samples. The lathe I am working on has 9 > gear ranges and it might be nice to utilize perhaps three of them to > optimize torque in the speed range desired. The spindle encoder is on > the spindle so it will give actual spindle speed no matter what range > the gears are in. There are plenty of inputs available if I wanted to > put some sensors on the gear shifts so LinuxCNC could tell what range > it's in.
Mine is on the spindle too, but only 2 gears at about a 1/2.2 ratio. Not nearly as complex. I have dreams of checking the requested speed, and if its not usable in the range its in, block that speed, sending only a 30 rpm request, and run a windshield wiper motor to shift it, then let the requested speed thru. I have a small pile of 12volt auto motors that might be able to be cobbled up to do that. I'll go look and let my imagination out to play. ;-) 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> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that Matters. http://pubads.g.doubleclick.net/gampad/clk?id=160591471&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
