SOLVED

Mea culpa, mea maxima culpa!

I found some settings or electrical issue, because mechanics are good ... but silver screws on silver puley .... one missing, one was on half way.

After repair, it seemed good, but a few minutes are enought for issue returning. I have to lock screws by some glue.

Ondrej

@fcwilt Yes, I have a Loctite glue for screws I am surprised, because my 6 years old 3d printer has puleys with screew very tightened. And new puley had loose screws after 6 minutes of operation.

Thank you for your help.

Ondrej

@fcwilt Yes, I have a Loctite glue for screws I am surprised, because my 6 years old 3d printer has puleys with screew very tightened. And new puley had loose screws after 6 minutes of operation.

Thank you for your help.

Ondrej

SOLVED

Mea culpa, mea maxima culpa!

I found some settings or electrical issue, because mechanics are good ... but silver screws on silver puley .... one missing, one was on half way.

After repair, it seemed good, but a few minutes are enought for issue returning. I have to lock screws by some glue.

Ondrej

Hello, what am I doing wrong? I have some pick and place machine. I am using Duet3 and position X and Y axis are not repeatable.
When machine is homed by mechanical endstops and camera's visual home mark, after 30 moves around working area, machine is returned to optical mark with offset, but coordinates are the same.
There are two pictures - before and after moving.
First homing
After return to mark positions

I tried motor current, less microsteps - 8 but error is still there. I tried two Duet3 boards, I changed firmware on one Duet, but .....

Regards
Ondrej

(sorry for my English)