Failure at hotend - heatbreak unscrewing?
Hi,
I love my mini, i have put 4-5 rolls of PLA through it in just a few months, its been a dream - ran perfect from the first print. Recently i had a hotend blockage, no big deal a quick clean and nothing obviously wrong, but I keep getting the same failure 45min-1hr into a print.
(I thought it was the hot end so i ordered a new hotend/heatbreak - so i have two examples in photo)
As you can see in the photos it looks like the heatbreak is unscrewing slightly from the hot end, causing a gap between nozzle and heatbreak to fill with filament and form a plug.
My questions:
- Is the heatbreak meant to be fully screwed into the hot end block?
- How do i prevent it from unscrewing? A spacer or something?
Thanks in advance!!!
RE: Failure at hotend - heatbreak unscrewing?
That looks like a clone. Who did you purchase the heat block from?
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Chuck H
3D Printer Review Blog
RE: Failure at hotend - heatbreak unscrewing?
Thanks for the reply, yes, the new heatblock is a clone from trianglelab.
For clarity the issue was occuring exactly the same onthe original heatblock/heatbreak.
I see that you cant fully screw in the nozzle and heatbreak from each end, so im wondering if its the overall height of heatbreak + boden tube not compressing tight enough into the top brass fitting? Could this allow the filament to build up in that little plug?