Topics created by RaymondS

@raymonds I have been running the Duet 3 mini 5+ with three different A/B-motor setups now:

LDO-42STH40-2004MAC 0.9 - I could not get these to work without layer shifting with the Duet board. OMC/Stepperonline 17HS19-2004S1 - These are great affordable stepper motors and worked perfectly IMHO. Still got four of them on Z. Ran them at 1200 - 1600 mA LDO-42STH48-2504AC - Had to see what the hype was all about. I run these at 1600 mA and they are OK but quite noisy. Probably for the speed freaks running 48V stepper drivers. As #1 on my list they have the JST connector so I got neater cabling with these than with #2. Nothing wrong with these so far so they'll stay on.

Disclaimer: These are my subjective opinions not based on any calculations and they may work for me but not for anyone else.

I might add that I have two Sanyo high flow 60 mm fans cooling the controller bay which is quite airy. I haven't noticed any temp warnings from the stepper drivers.

Looking at the photo, could the spacer pillars that link the ballnut mount to the linear slide be flexing slightly?

The near spacer in the photo looks to have a twist in it.

I'd try it with power off and the digital vernier over one screw, turning the motor very slowly each way by hand and see if the motion follows exactly or not.

The spacers may work better as tall blocks rather than just tubes, so it's impossible for them to rock.