Knurled Feeder Wheel loose

[oddoutput 7]

Hello

The knurled wheel on my ultimaker 2 came loose.

The hex screw that holds it in place has become round so the key won't fit.

I've asked at a hardware store what size it is (and replacements), but they said they couldn't find the right size.

Does anyone know what size it actually is?

[Labern 736]

Did you get the screw out? You can use torx keys (star shape) as they can some times grip when it's stripped.

It uses an M3 grub screw.

[stu_le_brew 39]

I had the same problem some time ago, so I bought some from AliExpress (like 100 stainless grub screws for very little money - less than 5 euro from memory) so now I don't worry if the screw gets damaged.

Edited October 3, 2015 by Guest

[stu_le_brew 39]

one additional thought I would recommend you get grub screws with a flat end (not domes or cone shape) they seem to grip the shaft better