3DPrinting

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My printer drilled through my hotbed. Can you help? (lemm.ee)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

18 comments fedilink hide all child comments

I got my Kywoo Slim printer last week, and it's done well for its price of £200, although it was slightly bad at detail as it would drag the filament along with it, rather than the filament adhering properly to the build plate.

Today I tried to fix that issue by increasing the nozzle temperature from 200° to 210°, which is in the recommended range for PLA filament (190 to 220). My hotbed temperature has stayed constant at 60°. Quite to my surprise, instead of printing normally or even at all, my nozzle instead dove down straight into my build plate, through the hotbed underneath it, and started melting the plastic and vibrating, drilling through the hotbed.

I stopped it printing immediately and inspected the damage. There was a hemispherical dip in my build plate, with a hole all the way through it in the center. In the hotbed directly underneath it, there was an indentation probably about 1mm deep in the exact size and shape of the nozzle.

Can you help me understand why changing the nozzle temperature would have caused it to do this, or if my printer is safe to use now? Also, can I fix it, and if so how?

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[–] [email protected] 2 points 1 year ago (2 children)

I had a problem with my Kywoo Tycoon where under some circumstances the printer would just dig right into the build plate when starting a print. Like the reference for the z-offset was completely out of whack. It had to do with the order in which I did bed leveling, homing, etc. I couldn't pin down the exact steps but it would usually happen on repeated prints. For me the issue was entirely fixed with one of the later firmware updates and I have never had the problem since.

[–] [email protected] 1 points 1 year ago (1 children)

When was the last time it happened to you?

[–] [email protected] 2 points 1 year ago

Before I updated the firmware to 2.1.3 which must have been well over a year ago.