I have a DIY 3D printer that uses a probe as z min limit and bilinear bed leveling. The problem is that bed leveling compensation sometimes doesn't work.

This is in my starting scripts in Simplify3d:

M106 S200

Upon printing, it turns the fan on, home all axes and bed leveling is done perfectly but sometimes when I start printing, Z-axis compensation doesn't work. It's random, often when I restart my PC it fixes the problem.


closed as unclear what you're asking by 0scar, Trish, Davo, Pᴀᴜʟsᴛᴇʀ2, Tom van der Zanden Jan 18 at 14:05

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    $\begingroup$ You don't have much information for us to work with, unless you can replicate the problem that it is not occurring sometimes, it is really difficult to answer the question. Can you somehow troubleshoot the problem to find under what circumstance this happens? Also, printing from PC to printer is not recommended, when your PC crashes or shuts down, your print will fail. SD-printing or use of a dedicated printer server (Raspberry Pi with OctoPrint) is much more safe. $\endgroup$ – 0scar Jan 12 at 13:52
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    $\begingroup$ What kind of printer design in general are you using? do you have a Z-limit switch or do you use a probe to ge Z? Do you possibly use mesh bed leveling? $\endgroup$ – Trish Jan 12 at 15:54
  • $\begingroup$ I use Arduino Mega+Rams 1.4 combination... my printer looks a lot like prusa i3 printers. I use a probe for min z axis and bi-linear bed leveling. $\endgroup$ – 2012User Jan 23 at 18:44