Bed Tilt/Mesh Clarification

Please help clarify for me. Once you have done a bed level (I am using my beacon), "A", "B" and "C" are then level. No matter where I home Z on the board, the distance above or below for "A", "B" and "C" relative to "H" should be the same. These 3 points are level according to the probe and auto level. From this point, I would see if my frame is skewed or bed is warped. So why when I look at my mesh are "A" and "C" the same height relative to "H" but "B" is always much higher?
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5 Replies
VisualTech48
VisualTech4811mo ago
Well first of all did you configure beacon properly? Ie set offset position and z tilit position? A probe point of Z-tilt and C probe of Z-Tilt should be near 0
RainingRusty
RainingRusty11mo ago
Still dont get it... A, B and C should be the same height after taking mesh. Yes. Probing set to probe at A, B and C. Probe Offset is correct as far as I can see. As per Documentation. But if if slightly off.... A, B and C should be same height as these are the 3 points probed to level
VisualTech48
VisualTech4811mo ago
Yes but where you you check the tilt? What are your points?
RainingRusty
RainingRusty10mo ago
I believe this is what would answer your quesion: [beacon] x_offset: 0 y_offset: 17.5 [stepper_x] position_max: 500 position_min: -5 position_endstop: -5 [stepper_y] position_max: 500 position_min: -8 position_endstop: -8 [z_tilt] z_positions: -5,-5 250,504 505,-5 points: 20,20 250,480 480,20 [bed_mesh] mesh_min: 20,20 mesh_max:480,480 probe_count: 15,15 mesh_pps: 0, 0
VisualTech48
VisualTech4810mo ago
Try to bring it a bit closer , and not on the farthest edge, see what happens. This can also be if your X or Y is skewed, the probe point on the back can give you a "wrong" result. Happened to me when I had 0.5mm deviation but because the middle of my X gantry in my case was far lower than the other points, meaning when it scanned the back, it was always dipping in the back.
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