On Thursday, 5 May 2022 16:44:32 EDT gene heskett wrote: > On Thursday, 5 May 2022 14:51:21 EDT gene heskett wrote: > > > (M111) > > > screw, but I'll try it again when thats done. > > > finished, if it finishes the screw. > > > > And I noted that it was not returning to zero at the end of a > > threading loop, so I changed the drive for another one that I think > > is 50/1. > If so, it will take a SCALE entry thats 5/4ths of the current one. > > > So > > in prep for recalibration of it, I tried my M111. no error, and it > > worked, so it that regard, I'm in business. Now for a recal run. > > And I am not getting sensible answers. > I have two sample-holds made out of mux2's, both watching the stepgen3- > counts which supposedly represents the number sent to the driver, like > this: > setp b_tally.gain0 -1.00000000 # b_tally is a sum2 > setp b_tally.gain1 1.00000000 > # count 100 trips of the b home switch > setp comp_cal0.in0 4.00000000 # count 4 turns > setp comp_cal1.in0 104.00000000 # count 100 more turns > net bpos_counts <= hm2_5i25.0.stepgen.03.counts > net bpos_counts => S32_float-cal.in > net bpos_countf <= S32_float-cal.out > net bpos_countf => mux2cal0.in0 mux2cal1.in0 # B steps made to both > # sample-holds > > net bcalibrate0 <= mux2cal0.out => mux2cal0.in1 b_tally.in0 # make into > sample-hold > net bcalibrate1 <= mux2cal1.out => mux2cal1.in1 b_tally.in1 # make into > sample-hold > > And watch b_tally,in0 for first count freeze > watch b_tall.in1 for 2nd freeze > At which point b_tally.out is showing the counts for 100 turns of the B > drive. A rather large 8 digit value. > > Divide that by 100 to get steps per one full turn of the axis. > > Then since the axis is angular, and in degrees, divide that by 360 to > get degrees. stop lcnc, edit the ini file and update that > STEPGEN_SCALE with the number. Touch off b@0.00. run B either way to > 360, but its short, I need to run it to around 390 to look like a full > furn. > > Each time I run this, I get a bigger result.
I should say a different result. This time it went from 146.xxxxx to 144.xxxxxx. I'm going to plug in a debounce on the b home switch. Or better yet a timer to stretch the pulse, that should cover the bounces. > > What in tunket am I doing wrong? > > Thanks Andy. > > 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, 1940) > If we desire respect for the law, we must first make the law > respectable. - Louis D. Brandeis > > > > > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > . 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, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
