Improving auto-calibration.
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well, i got that part of it solved but now it seems like the area across from the y tower is a little low and the area close to the y tower heading around to the z-tower is low…
i'm wondering if i can make manual adjustments to the H values to dial it in?
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You should only use H corrections to compensate for actual variations in trigger height, which on a delta printer are usually caused by effector tilt. If you are still getting significant errors close to points that are included in the auto calibration bed probing, either fix the geometrical errors that are causing them, or use the new grid bed compensation in the 1.17dev6 build after auto calibration to compensate for them.
I have it on my list to add a wiki page on delta calibration.
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Thank you. Geometrical errors in this case are most likely to be a warped bed, correct? Or is there something else i should check?
Also, should the nozzle hit the bed at z=0 for x=0 & y = 0? When i check there i got .25mm off the bed?
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actually, it turns out when i found out my endstops were loose, i never readjusted z=0….
I redid the h-value test and now it's almost perfect!
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Also, should the nozzle hit the bed at z=0 for x=0 & y = 0? When i check there i got .25mm off the bed?
Yes it should be much closer to zero height than that. Perhaps your trigger height in the G31 command is not set correctly?
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Thats not the only issue i had, after reading your comment DC42, (and haivng some other issues with prints) I discovered my steps/mm setting was off. I had it as 82.5 steps/mm instead of 80 steps/mm…
Originally, i had to fudge some of the H-values to get the circle to print correctly, now it looks great w/o the fudging! (even better). Ill edit in a picture once its completed.
Just posting this for posterity. Thanks for your help.
