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Duet3D / RepRapFirmware

OO C++ RepRap Firmware
GNU General Public License v3.0
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Incorrect extruder steps for G2/G3 moves at low extruder steps/mm #1006

Closed T3P3 closed 6 months ago

T3P3 commented 6 months ago

In RRF 3.5.1 use the following minimum configuration of a 6XD:

M83 G90 M569 P0.0 S1 R1 M569 P0.1 S1 R1 M569 P0.2 S1 R1 M569 P0.0 T3:3:1:1 M584 X0.0 Y0.1 E0.2 M92 X80 Y80 E5 M566 X10000.00 Y1000.00 E100000 M203 X48000.00 Y48000.00 E100000 M201 X10000.00 Y10000.00 E100000 M563 P0 S"test" D0 T0

Then send the following commands:

G92 X20 Y20 G3 X20 I-5 J0 E10 F1000

The pattern of pulses in not smooth, and the number of pulses is not correct. image

Setting M92 E400 resolves the issue;

dc42 commented 6 months ago

Fixed in 3.5-dev for both main boards and expansion boards. Issue also affects 3.4 and earlier firmware versions.