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UM3 hotels plastic spring retainer replacement


Go to solution Solved by Penrock1547,

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Posted · UM3 hotels plastic spring retainer replacement

I had a few of my UM3 hot ends pop the plastic retainer piece that retains the spring. Is there somewhere I can get a spare plastic spring retainer? The plastic part is broken and needs to be replaced. This is just the plastic part on top of the hot end. I could probably glue it back but I’d rather just get another and replace it. 
Thanks!

 

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    Posted · UM3 hotels plastic spring retainer replacement

    These are not available as spare parts from Ultimaker I'm afraid. If you ask your local reseller nicely they may have a broken printcore lying around that they could steal that part from for you though.

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    Posted · UM3 hotels plastic spring retainer replacement

    The part is available in the GitHub repository of the Ultimaker 3, I’m on mobile currently so I can’t easily look for it. But you can download it and print it out of PC or CPE+ or something. 

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    Posted · UM3 hotels plastic spring retainer replacement

    I believe you can find it here.
    https://github.com/Ultimaker/Ultimaker3

    But please be careful with your material choice like @glx said.
    You want it to withstand high temperatures because if it melt to your printer you have a ruined printhead. 
    It might be worth asking for a scap part like @IRobertI suggested. 

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    Posted · UM3 hotels plastic spring retainer replacement

    Thanks all, I appreciate that. Many thanks. That’s stinks, I was afraid there might not be a replacement. I have 8 extruders all from the same ultimaker reseller. These are the only two that have done this. I’ll check out the STL, but yes it makes me nervous using a printed part given the proximity to the hot end. I might get some CP and try it. I might glue a washer to the underside of the plastic part so the hex bolt has something to grab. Might be possible to print a small recessed cylinder and glue that to the plastic retainer as that is what appears to have broken away from the main plastic retainer. Essentially I just need to attach something to the retainer so the hex bolt can hold it in place. 

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    • Solution
    Posted · UM3 hotels plastic spring retainer replacement

    Well here they are, printed out of TPLA. Turned out pretty good. Haven’t printed with them yet, but did check the temp with a heat gun near that area while the printer was running and it never got above about 70-80F so I think the TPLA will be fine. They fit nicely too, popped right in. I’ve got some PC coming for Christmas so I may do a few out of that too. Thanks again for the STL! Cheers!

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