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Marlin 1.1.5 - G29 and G33 Delta printer does not go to bed

Posted by Reef 
Marlin 1.1.5 - G29 and G33 Delta printer does not go to bed
September 26, 2017 08:20AM
I'm trying to get G33 and G29 to work on my Delta printer. What happens is that the end effector will home with G28 but, when I send G29 or G33, the end effector just stays at around Z MAX and just moves around slightly. Ultimately (a few seconds) it bangs into the end stops but that doesn't do anything. I've looked at the debug code and it looks like the algorithm is sending weird numbers like X-8 Y-10 Z186 which make absolutely no sense to me. The machine is fairly well calibrated but I want to tweak it and set up bed leveling as my bed surface seems to be rather topsy turvey (+/- 2 mm variation at various points).
I got it to work once, but that was it - since then it's been just this crazy slow dance at the top of the delta. Anyone else seen this? Is there a solution?

Reef
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