Strange Mesh Grid Comp. results
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Hi,
I'm busy reviving my old Tripodmaker Delta Printer (300x400) with a DuetWifi Board. The motor and height settings (mm/step, home-height, z-max-travel) seem to be right now. The auto delta calibration to works without error messages now.I just ran the Mesh Grid Compensation and got these strange results (see attached image). Any idea what could be happening here?
- Using a temporary setup for my Duet IR probe (glued, no shorts).
- Standard speed settings from configtool.reprapfirmware.org
- mesh probing looks normal, no hiccups visible
- brown paper tape as bed cover
Thanks,
Vincent
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Have you gone through this?
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Mmh, it says one might as well use the reprap-cfg-tool, so I did. It seems to be the same questions that need to be answered in the process.
As I said, the auto calibration seems flawless, only I haven't figure out how to verify that. Tried printing a sample, but it bumped into the bed, which might have been because I had a hominG28 in the start code. Trying with no homing now... -
Naa, even after calibrating it, the zero-point in the z-coordinate is about 6mm above the bed. Something is still very wrong somewhere.
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post your config and config overwrite
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Could there be movement/flex in the probe's position going on? Do you get the same heightmap image every time you probe?
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Ok so I just did the mesh grid compensation without my fancy LED-light strips and now the results looked much better. Also, the print startet fine, laying a good first layer. Interesting, huh...
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@tripodDuet That is really interesting. I wonder how many of the issues seen by users of the IR Probe actually might be running into something similar.
What kind of LEDs are you using?
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@tekkydave , no, there is no movement in the probe.
@Phaedrux I just ran the Comp again with the lights no. Now the results are similar to the lights-off-situation. I'm a little puzzled, so that might not have been the thing.
I'll have to sherlock some more, but not tonight. Thanks for your questions. -
@Phaedrux using cheap china-led-strips from the hardware store. Something like this https://www.amazon.de/Lichterkette-Lichtleiste-Fernbedienung-Farbwechsel-selbstklebend/dp/B01I1HQ372/ref=sr_1_1?__mk_de_DE=ÅMÅŽÕÑ&crid=21K1FJT1T5A8X&keywords=led+streifen&qid=1580335271&sprefix=led+%2Caps%2C-1&sr=8-1
