[UM2 - Stuck print head]

That's so good to hear! I've been considering buying it for years but haven't dared spend that much on it. 

[UM2 - Stuck print head]

I did end up ordering genuine UM parts from a local shop, because of delivery time and warranty, and of course as @kirby207 said quality control etc. The extra cost however was closer to 60$ for the pair though... 

I also ordered some new belts and the extrusion upgrade pack while I was at it so my machine is really getting a lot of attention 😁

[UM2 - Stuck print head]

9 minutes ago, fbrc8-erin said:

If the steppers are hard to turn by hand when it's disassembled then most likely they've gone out and need to be replaced. I would do the X and Y. I've not personally seen the Z-motor lock up in the same way, so if you're not having Z problems, it's probably okay.

OK thank you, should I buy genuine replacements? Or are ebay stepper just as good? 

[UM2 - Stuck print head]

Update; I took the steppers for x and y off and now it's smooth as butter. The stepper on the left is almost impossible to turn, is it dead? 

The one on the right is better but far from smooth turning. I should probably just get new ones right? Should I also change the feeder and z motors as well? I haven't felt them like this but the bed seems loose and fine. 

[UM2 - Stuck print head]

3 hours ago, tinkergnome said:

 

an idea:

I would loosen the holding screws of the x/y motors and remove the short belts from the pulleys.

Then - as a first step - you should be able to distinct between a bad motor and a bad bearing.

OK i could try that, that won't screw with any calibration stuff? 

[UM2 - Stuck print head]

Hello

My trusty UM2 has suddenly got huge trubbles moving its head!

I had a print going last night and when i checked it today it looked like this(see pics).

I've had lube problems in the past so i tried cleaning and lubing my rails but it actually seems worse now.

With the power off i can barely move the head in any direction.

What should i do to solve this?