Hey all, I'm having issues with BiLinear Bed Leveling: it's not adjusting per the mesh, in fact I think it's reversed.
The Setup: CoreXY, SKR 1.4 Turbo TMC2209, bl touch.
Build version : "bugfix-2.0.x" latest pulled today.
I ran a test and I can confirm that the mesh is upside down:
I got my current mesh and found the worst corner (4,4)
M420 V
Recv: 0 1 2 3 4
Recv: 0 -0.175 +0.057 +0.142 +0.173 +0.230
Recv: 1 -0.023 +0.048 +0.030 +0.072 +0.023
Recv: 2 +0.010 +0.075 +0.012 +0.043 +0.063
Recv: 3 -0.035 +0.035 +0.050 +0.152 +0.148
Recv: 4 -0.070 +0.010 +0.082 +0.235
+0.313
I changed my mesh to invert the worst corner.
Command I ran:
M421 I4 J4 Z-0.313
Recv: 0 1 2 3 4
Recv: 0 -0.175 +0.057 +0.142 +0.173 +0.230
Recv: 1 -0.023 +0.048 +0.030 +0.072 +0.023
Recv: 2 +0.010 +0.075 +0.012 +0.043 +0.063
Recv: 3 -0.035 +0.035 +0.050 +0.152 +0.148
Recv: 4 -0.070 +0.010 +0.082 +0.235
-0.313
Did a test print and 4,4 had really good adhesion on the worst corner, by comparison to the previous attempt, it was .626 mm away from the bed.
Everything up until this issue has been pretty normal. It homes well, it probes well, the only thing that was abnormal was at one time when I was doing a 4x4 probing, it started at the right hand side corner rather than the left. When I did 5x5 probing, it went back to starting at the left corner, (0,0). Not sure if it's indicative of anything, but I thought it was worth mentioning
Any Ideas regarding the mesh inversion?
Edited 1 time(s). Last edit at 02/27/2021 10:02PM by thetailwind.