@dc42

Confirmed that issue is fixed with the provided work around. Thank you

@dc42

Thank you for the info. Will reload 3.3 RC1 and try the fix and will let you know.

@dc42

Are these ok for segments/sec or do you see an issue?

@dc42

M669
Kinematics is Polar with radius 0.0 to 120.0mm, homed radius 0.3mm, segments/sec 100, min. segment length 0.20

I checked both firmware versions this output above is the same.

@dc42 This is an update to the Polar issue we spoke of in the other thread.

I am getting a waviness on straight lines with the 3.3 Betas and the RC1, Firmware 3.2.2 is the newest that I do not see an issue.

The following is with the same Gcode file.

This is with the latest 3.3rc1 that DC42 linked to on Dropbox.

This is 3.2.2 just to show that it is not a mechanical issue.

These were done back to back for comparison and on Genuine Duet Ethernet 2.

@shadi

I am using the 3.2.2 stable. I tried version 3.3 beta 2 and Beta 3 and still have issues. 3.2.2 is working for me though.

@shadi

No my design is not same with the tower in the middle but from what I can see the kinematics should be the same.

@shadi

I used simplify 3d so can not comment on Cura but In simplify I just leave it as Cartesian because Delta seems to mess things up. My diameter is 240 for bed so I set that for X and Y then do 120 offset to get nozzle in middle.

@shadi

That was with the x axis at 105mm from center of z tower and you did G92 X105 to set position?

And how do you have your slicer setup?

@shadi

OK then position by hand with motors off M84. Then once in position do a G92 X105 Y0 Z0 to set positions.