The spring is okay but having less pressure is good so I recommend putting a part in there. This one works good. You may have to tweak it 0.5mm or so either way but it should fine with any Olsson block or block v3 on the non-plus printers. I printed this part in ABS as it does get a bit hot up in there. The window is fantastic improvement over ultimakers opaque aluminum:
I just bought this metal ring for a few euros from 3dprima for my um2go. No issues.
Edit: well, yes, cannot see the bowden through aluminum but I kinda developed a feel for knowing when it is inserted right.
Edited by Guestbob-hepple 59
Dim3nsioneer 558
For me still the best replacement: https://www.youmagine.com/designs/um2-adjustable-spring-replacement by @anders-olsson
bob-hepple 59
yep that looks good been trying to make that from alloy aswell
yep that looks good been trying to make that from alloy aswell
Where did you buy it?
bob-hepple 59
paul
I made it on my Lathe took about 10 mins
paul
I made it on my Lathe took about 10 mins
Can I have the exact dimensions of the your model?
bob-hepple 59
I Pm'd you
I can easily make alloy ones with slots in them so you can see the bowden tube.
would be nice! to bad you're on the other side of the world.... probably not a good a idea regarding shipping costI can easily make alloy ones with slots in them so you can see the bowden tube.

yeah. shipping to Netherlands would be $9euro
Ah.. not so bad... I'm willing to forward a few if more people in the Netherlands want one.....
I'll add it to my list for when I get back. I require one for myself anyway, and if I'm making one then make more wont be much more work.
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What's the best lathe to do it? I found a list of best wood lathe 2017 and see that the Rikon seems OK. Is anybody using that lathe? Give me some idea pls. Thanks
Did you see this?
and you can also just buy the alu one from a Ultimaker re-seller (but I can see the appeal in making you're own...)
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nallath 1,125
I'm not sure if we already released the files for the UM2+ upgrade kit, but if so, the step files should be in there.
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