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Re: Z-axix linear bearings
Posted: January 26th, 2017, 9:12 am
by LePaul
Sounds like a rough spot in the z rods? Or really bad bearings?
Re: Z-axix linear bearings
Posted: January 26th, 2017, 9:40 am
by nilrog
Since it happens in any location on the rods if you repeat the procedure manually...the bearings are more than likely to be the problem. New ones arrived in the office today so I will pick them up tomorrow...lets just hope that they are better...even though they still are from Ultimaker
Re: Z-axix linear bearings
Posted: January 26th, 2017, 9:45 am
by LePaul
Are they Mitsumi?
Re: Z-axix linear bearings
Posted: January 26th, 2017, 9:55 am
by nilrog
Don't know yet...but I have no hopes for that. It will probably be the same
Re: Z-axix linear bearings
Posted: January 26th, 2017, 10:09 am
by Meduza
If you just received them from 3DVerkstan i do think that we actually ship Misumi bearings nowadays. (but i am not in charge of spare parts, IRobertI knows this better)
Re: Z-axix linear bearings
Posted: January 26th, 2017, 12:54 pm
by nilrog
I will report back tomorrow when I have picked them up
Re: Z-axix linear bearings
Posted: January 26th, 2017, 1:54 pm
by Izzy
Oh ok,
Are you able to disconnect the bed from the bearing and manually move each bearing in turn up the shaft ? I'm wondering if you have a slight deformation on 1 shaft causes the stiction, there may be a small area that appears slight more polished due to the rubbing.
Re: Z-axix linear bearings
Posted: January 26th, 2017, 1:59 pm
by nilrog
I will when I replace the bearings
But I don't think any things wrong with the rods since I can reproduce the issue at any height by manually moving the plate.
Re: Z-axix linear bearings
Posted: January 27th, 2017, 4:33 am
by nilrog
Meduza wrote:If you just received them from 3DVerkstan i do think that we actually ship Misumi bearings nowadays. (but i am not in charge of spare parts, IRobertI knows this better)
You are correct sir...I received genuine Misumi bearings today
Re: Z-axix linear bearings
Posted: January 27th, 2017, 6:29 am
by reibuehl
How much do they charge for a set for the UM2?
Re: Z-axix linear bearings
Posted: January 27th, 2017, 7:21 am
by nilrog
Don't know...these were replacements for faulty bearings shipped with my UMO+ kit.
Re: Z-axix linear bearings
Posted: January 27th, 2017, 7:30 am
by nilrog
These are the ones that they sent.
Re: Z-axix linear bearings
Posted: January 27th, 2017, 9:15 am
by PeggyB
yes, those are the ones you need!
did this a year ago on my UM2go and Umo
Re: Z-axix linear bearings
Posted: January 27th, 2017, 9:37 am
by Neotko
Yeah peggyb we did a nice debugging of UM crappy bearings quality
Re: Z-axix linear bearings
Posted: January 27th, 2017, 9:43 am
by reibuehl
How difficult is it to replace these bearings? I wonder if I should replace mine but I am afraid that I might end up with a worse printer than before because I have to take it fully apart and can't get it together properly anymore...