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johncarlson21 / SV04-Marlin-2.1.x

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.
http://marlinfw.org
GNU General Public License v3.0
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Possible bug with tramming #18

Open 1DontEx1st opened 1 year ago

1DontEx1st commented 1 year ago

Describe the bug Switching to tramming (from auto-leveling) seems to raise the Z height. Continuing to tram (by pressing the same number) seems to raise the Z height as well.

To Reproduce Steps to reproduce the behavior:

  1. Go to Leveling
  2. Put a piece of paper under the nozzle after it finishes
  3. Use -/+ to get the nozzle to "scratch" the paper
  4. Click Tramming
  5. Press the "1" (my nozzle actually shifts to the left a bit when I first do this...should it?)
  6. Press the "1" again, several times.
  7. Notice how the paper moves easier each time.

Expected behavior I would expect the Z height to remain the same

Additional context Using 2.1.3.1b3

johncarlson21 commented 1 year ago

What touch sensor do you have? I use the cr touch on mine and I'm not seeing this problem, however when I had the bl/3d touch this would sometimes happen as the precision isn't as good with those touch probes.