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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
GNU General Public License v3.0
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[BUG] Movement uneven (with large DELTA_SEGMENTS_PER_SECOND) #14532

Closed prahjister closed 4 years ago

prahjister commented 5 years ago

Hey,

I am using 2.0 bugfix from 6/26 on an skr 1.3. with tmc 2130. it's a Delta printer. Done a lot of googling but could not find a solution. My prints are coming out beautifully with the exception that movements are wired. I have never noticed this with any other build.

The best I can describe is when moving in a straight line it accelerates slowly then does a fast acceleration to finish out the line. In the past all movements are like a smooth arc if plotted out. This movement is more like an arc 1/3 of the way through the line then jumps up in speed then slows down.

Another way to describe is a lot like the linear advance test. The first movement is slow then it jumps to the fast speed.

It leaves a poor surface finish on straight edges. On all my curved faces the layers are fantastic.

If I need to make a video I can

dankatanka commented 4 years ago

Hi! I have over extrusion with enabled linear advance on Anycubic kossel plus with tmc 2130 (latest bugfix-1.1.x 1d44b1009da21499839af9e4eb96174a6188bfb9) image Reducing MIN_STEPS_PER_SEGMENT 1 was fix the problem. Без назви2

boelle commented 4 years ago

will close this one as it seems fixed, at least @dankatanka made it work

we can always reopen

github-actions[bot] commented 4 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.