Centroid Community CNC Support Forum

Your axis configuration looks wrong. It looks like you are using the PM ballscrew kit. Are you are using the PM ballscrews? Mine have a 5mm pitch. 1in=24.5mm÷5=5.08 your turns per inch should be around 5.08 not 8 or 12.7

Do not use Odd Numbers as a result for reduction rates, this will end up in rounding errors. Rotary Axes are working in degrees, so take care that the step resolution can drive to 0.01 or 0.001 degree whatever precision you want to achieve. Uwe Makes sense, Thanks. Looks like I have some work to do.

Gary Its belted with a 62/20 gears for 3.1 with 4000 steps per rev microstepping. I built it out of a lathe headstock a few years ago and have been running small parts successfully but recently have had some larger parts with with tighter tolerances and the error was glaringly obvious. I might have ...

I have a rotary indexer with a 3.1 ratio, 3.1/360= 0.0086111111 . The wizard is limited to 0.008611 turns/deg. 0.0000001111 does not sound like much :roll: but a movement of 0.008611 turns on the rotary indexer corresponds to an angle of approximately 0.0266 degrees or 0.008762 inches on a control s...

Looks like these drives accept 5v or 24v logic via a switch. if it was me I would skip the DB25 and run them right off the acorn 24v outputs

Just tried the beta due to the InitialStage SV_ATC_CAROUSEL_POSITION bug in my recent thread. I was using G30 for a atc and (P3) for tool setter. As someone else reported the G30 Z for ATC gets reset, creating a crash or tool drop situation for atc's. Back to running 5.04 and everything runs smoothly.

That was the problem :D First I did a fresh install of v5.07 rev15 beta and that did not fix the problem. I just made a simple change to IF 1==1 THEN CurrentCarouselPosition_W = SV_ATC_CAROUSEL_POSITION, RequestedCarouselPosition_W = CurrentCarouselPosition_W, PutBackPosition_W = SV_ATC_TOOL_IN_SPIN...

No issues with the inputs or outputs as far as I can tell. I noticed a possible issue or symptom the bin number switches after acorn reboot. CNC12 manual page 352 says: "The current ATC carousel position is constantly monitored. When there is a change, the ATC bin field in the cncm.job file is ...

Thanks Gary, I have a 4th axis so thats why I am using the g216 driver its a "indexing stepper driver" controlled by a couple relays. Keith has recommended it a couple times in the facebook group and Marty did a video on it, thats why I designed around this driver. I failed to mention the ...

Does your carousel have a homing switch defined? It sounds like it is "driving by" the sensor I was under the impression cnc12 remembered the location of the atc. Do I need a homing switch for the atc? I read through all the documentation carefully (I thought) and many threads, never seen...