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UM2 to UM2+ upgrade - did I break it?


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Posted · UM2 to UM2+ upgrade - did I break it?

I did the upgrade kit to take my UM2 to UM2+.


At the point where you install the new the geared feeder, I couldn't immediately get the metal mounting bracket off, so I thought I should try unscrewing the 4 screws on the face of the gear box.  I heard and felt what seemed like parts under tension shifting around when the screws came out.  I'm guessing I broke that piece?


youtube vid at 1:51



The piece I'm talking about is at: https://ultimaker.com/en/products/extrusion-upgrade-kit

If you scroll down to "What's the in Kit" - it's #4



On a different note, the black braided bundle of hotend wires comes out right where the PLA goes in from the spool.  Seems they will rub on each other, which seems like a bad thing. 


youtube vid at 2:06



Is this a known thing?  I was going to do something janky to force the black bundle out of the way to the side. 




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    Posted (edited) · UM2 to UM2+ upgrade - did I break it?
    6 hours ago, dodzilla said:

    I heard and felt what seemed like parts under tension shifting around when the screws came out.


    Well, there's a spring inside...

    This guide contains a lot of pictures:


    Edited by tinkergnome
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    Posted · UM2 to UM2+ upgrade - did I break it?

    Thanks for the replies.


    I know what happened now:  The little pressure indicator thingy popped out of place when I first took it apart and then I put it back together wrong. 


    I took the gearbox off and rebuilt it using that guide.  I just printed a test robot and it looks great!

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