auto calibration
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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.
