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UMO Extruder Drive Upgrade

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I own an UMO that I purchased pre-owned and noticed it came with extra parts for the extruder driver.  I realized that Ultimaker once sold an UMO Extruder Drive Upgrade kit, which they no longer sell.  

I have dual extrusion and noticed that on extruder 1 most of the parts are wood, yet extruder 2 has more plastic parts.

Is there a way to tell if my Extruder Drive is stock versus having the UMO Extruder Drive Upgrade Kit installed?

Extruder 1 (3 views)

5a3325b33ccb4_Extruder1A.jpg.f1d03c8d7bd1c8c537849e7fc981ffef.jpg

5a3325b3501ef_Extruder1B.thumb.jpg.cf868807354d1f7a876573f23ee18ea3.jpg

5a3325b36cdfc_Extruder1C.thumb.jpg.5cf853681e9d0945224a35145dbe0f08.jpg

Extruder 2 (3 views)

5a3325b3819cd_Extruder2A.thumb.jpg.675916b274b49565691aa5e1e0029c16.jpg

5a3325b393a3f_Extruder2B.jpg.96166ffade02650e4d21db3ae74fa3c5.jpg

5a3325b3a3923_Extruder2C.jpg.b67193eabf1a3b9dfeeb956606bba73b.jpg

5a3325b33ccb4_Extruder1A.jpg.f1d03c8d7bd1c8c537849e7fc981ffef.jpg

5a3325b3501ef_Extruder1B.thumb.jpg.cf868807354d1f7a876573f23ee18ea3.jpg

5a3325b36cdfc_Extruder1C.thumb.jpg.5cf853681e9d0945224a35145dbe0f08.jpg

5a3325b3819cd_Extruder2A.thumb.jpg.675916b274b49565691aa5e1e0029c16.jpg

5a3325b393a3f_Extruder2B.jpg.96166ffade02650e4d21db3ae74fa3c5.jpg

5a3325b3a3923_Extruder2C.jpg.b67193eabf1a3b9dfeeb956606bba73b.jpg

Edited by Guest

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Which one of my extruders has the more 'updated' drive, Extruder 1 or Extruder 2?

Is there a performance difference between the drives in my Extruder 1 and Extruder 2?

I have been having issues with underextrusion at times and would prefer to use the one that gives me optimal performance as my primary extruder.

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Extruder 2 (with the plastic parts) is the most recent.

But they are both based on the same principle, so it should not matter in term of performance.

You need to check that the wheel inside is in good shape, if not replace it by a bearing (see this post)

Note that extrusion problems are more often cause by a damaged Teflon coupler rather than issues with the extruder itself

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