Hi Everyone, I pulled my CR-10 V3 printer out for the first time in a while and I am having a problem that has me stumped. I can’t get a good first layer. I have searched the interwebs and can’t find a solution. Here is what is going on:
I have run a M48 - Probe Repeatability Test multiple times. Standard deviation is around .002 which I think should be OK.
I have done this 15 times, 15 differnt ways, but here is the basics (short version)
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Level my gantry
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Initialize Eprom
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Set my z-offset using the z-offset wizard
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Store settings
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Tram Bed to within 0.01
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Adjust my z-offset. Offset = 0. 93
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Store settings
Sometimes now I level the bed and readjust z, but it doesn’t make a deference.
Here is the issue. Now when i try to print, my z-offset is no longer correct. When i check my z-offset, it still says 0.93, but needs to be adjusted to 0.97. Now i try to print again, and it still won’t print. Check my z-offset and it says 0.97, but needs to be adjusted to 1.02.
I thought it might be a problem originating from my slicer software, or Octoprint, but I can recreate it without even doing a print.
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move X/Y to 100/100 (same place each time for repeatability),
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adjust my z-offset to get just the right amount of squeeze on a piece of paper
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Store settings (or don’t, just for fun)
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auto-home
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check Z-offset
It is different every time I autohome. Here were the last few: 0.93, 0.97, 0.90, 0.94, 0.97, 0.90, 0.93, 0.97
I have also tried reverting to the firmware that came with the machine and still it doesn’t work.
Please help!