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[BUG] Extruder motor doesnt run if LIN_ADVANCE enabled with K == 0 #13563

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xorza opened this issue Apr 3, 2019 · 3 comments
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[BUG] Extruder motor doesnt run if LIN_ADVANCE enabled with K == 0 #13563

xorza opened this issue Apr 3, 2019 · 3 comments

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@xorza
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xorza commented Apr 3, 2019

Description

Enabling LIN_ADVANCE with k value == 0 on SKR V1.3 mb with TMC2130 SPI, makes extruder motor never rotate

Steps to Reproduce

  1. Use bugfix-2.0.x branch
  2. Use SKR V1.3 motherboard
  3. Use TMC2130 SPI
  4. Enable LIN_ADVANCE and set K to 0.0
#define LIN_ADVANCE
#if ENABLED(LIN_ADVANCE)
  #define LIN_ADVANCE_K 0.0
#endif

Expected behavior: Extruder motor works

Actual behavior: Extruder motor never spins (it has voltage on it though, it is hard to spin it with fingers). Disabling LIN_ADVANCE fixes problem.

Additional Information

bugfix-2.0.x...xorza:skr1.3_wanhao here are all my changes, but I'm sure that no other thing affects my problem except LIN_ADVANCE (I tried reverting all the changes I made)

I didnt try with any other motor driver, I have only TMC2130 SPI. Also didn't try K values different than 0.

@kAdonis
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kAdonis commented Apr 3, 2019

Duplicate of #13535 and others

#define MINIMUM_STEPPER_PULSE 1 seems to fix the issue

this should really be standard for TMC drivers

@xorza
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xorza commented Apr 3, 2019

@kAdonis thanks for prompt reply! should I close this now?

@xorza xorza closed this as completed Apr 3, 2019
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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.

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