auto calibration
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@phaedrux nope is there a way to just move one z motor instead of all?
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@trublu89 said in auto calibration:
@phaedrux nope is there a way to just move one z motor instead of all?
Have you tried Auto Bed Leveling?
Docs where bed leveling is discussed
How do the Z steppers connect to the bed? Do the connections have any give? Are the kinematic connections?
Frederick
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@fcwilt this is g29 initially and then g29 with s1 at startup code right?
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G29 is related to Mesh Bed Compensation which is a feature used during printing to try and adjust for an uneven bed.
G32 is related to Auto Bed Leveling which is a feature used before printing to level the bed. Since you have multiple Z steppers you may be able to use Auto Bed Leveling but it depended on how much "flex" you have in the connections from the Z lead screws to the bed. The firmware probes the bed with your Z probe and attempts to adjust the Z steppers individually to level the bed.
Here is a link to a quick-and-dirty video showing the Auto Bed Leveling feature leveling the bed on my printer. I designed the printer to support bed leveling and I use kinematic mounts to connect the Z belts to the bed. The mounts allow a lot of "flex" so the Z steppers are free to adjust the bed without any binding.
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@fcwilt I have the flexible z couplers.
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@fcwilt also what would cause temperature excursion. I have paid tuned several times with and without the fan on.
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@trublu89 said in auto calibration:
@fcwilt also what would cause temperature excursion. I have paid tuned several times with and without the fan on.
What error exactly are you getting and when are you getting it? Did you save the results of the PID tune and have it loaded again at startup? This is usualy done by sending M500 after the tuning to save it to config-override.g and then adding M501 to the end of config.g to load that file at startup.
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@phaedrux I didn't add the 501 I just entered m500.
It said temperature excursion went from 230 to 250. I think the fan might have been too high I tried to make it to where it cuts on but low not on high but it still is 60 or 80 percent.
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Ideally you should have a silicone nozzle sock installed to insulate the hotend from the fan. The fan duct itself should be aimed away from the nozzle. And for tuning you can use M303 T0 S245 to tune the hotend as a tool, including using the fan during tuning to help compensate.
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@phaedrux I had this volcano way before the silicone socks ever came about.
I have some of the hose printrbot used on their ubis got end but the heat makes it tear. Maybe it was meant for a lower heat.
