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woofy

UM2 Malformed Pulley

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Yesterday I started my printer on a 34 hour print. It seemed to be going well so I left it. When I checked on it this morning the print coordinates had jumped back about 15mm and it was happily printing in the new position.

For a while now my front to back axis has had a lumpy feel to it with lubrication having no effect so this morning I took a hard look at it. The timing belt on the left side motor (the one that drives the print head front to back) was lifting at the hard to move point. I dismantled the drive and can see the pulley is malformed.

pully.jpg

The timing belt is also damaged.

I need new parts but they are not in the shop, so what do I order?

edit - copied in email to support@ultimaker.com

 

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