Z-axix linear bearings

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LePaul
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Re: Z-axix linear bearings

Post by LePaul » January 26th, 2017, 9:12 am

Sounds like a rough spot in the z rods? Or really bad bearings?

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 26th, 2017, 9:40 am

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 :P

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LePaul
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Re: Z-axix linear bearings

Post by LePaul » January 26th, 2017, 9:45 am

Are they Mitsumi?

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 26th, 2017, 9:55 am

Don't know yet...but I have no hopes for that. It will probably be the same :roll:

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Meduza
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Re: Z-axix linear bearings

Post by Meduza » January 26th, 2017, 10:09 am

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)

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 26th, 2017, 12:54 pm

I will report back tomorrow when I have picked them up :)

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Izzy
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Re: Z-axix linear bearings

Post by Izzy » January 26th, 2017, 1:54 pm

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.
Izzy.

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 26th, 2017, 1:59 pm

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.

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 27th, 2017, 4:33 am

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 :-)

reibuehl
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Re: Z-axix linear bearings

Post by reibuehl » January 27th, 2017, 6:29 am

How much do they charge for a set for the UM2?
Reiner.

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 27th, 2017, 7:21 am

Don't know...these were replacements for faulty bearings shipped with my UMO+ kit.

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nilrog
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Re: Z-axix linear bearings

Post by nilrog » January 27th, 2017, 7:30 am

These are the ones that they sent.
IMG_0587.JPG

PeggyB
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Re: Z-axix linear bearings

Post by PeggyB » January 27th, 2017, 9:15 am

yes, those are the ones you need!
did this a year ago on my UM2go and Umo
2016-02-24 15.20.17.jpg

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Neotko
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Re: Z-axix linear bearings

Post by Neotko » January 27th, 2017, 9:37 am

Yeah peggyb we did a nice debugging of UM crappy bearings quality :D

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Re: Z-axix linear bearings

Post by reibuehl » January 27th, 2017, 9:43 am

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... :-(
Reiner.

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