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Stripped Allen Key Screw Holes on the Back of Ultimaker 2+


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Posted · Stripped Allen Key Screw Holes on the Back of Ultimaker 2+

I was hoping you could help me out.


I noticed that the back panel on the box on the back of my Ultimaker 2+ where the filament is inserted was coming loose.  After a little analyzing, I found that 3 of the 4 allen key screws were no longer gripping which was causing the panel to come loose.  I took the back panel off and only the top left allen key screw hole supported a screw while all of the other screw holes could have the screws slide completely in and out of them with no resistance.


Any suggestions on how I could get those screw holes to grip the screws again?

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    Posted · Stripped Allen Key Screw Holes on the Back of Ultimaker 2+

    It's not obvious because they are sort of hidden, but those screws go into nuts.  Look inside your printer.  Every screw goes into a nut.  Your nuts fell out.  You need to locate the nuts and stick them back in the slots before putting the screws back in.


    They are standard M3 (3mm metric) nuts.  Standard thread (0.5mm thread pitch) (versus fine pitch).  In the USA some hardware stores have metric nuts and some don't.  But if you tilt your UM2 you might see the nuts sliding around in there.


    You UM2+ probably came with a green and black hex driver - much easier to use than an L shaped allen key.

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