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Y axis inprovements collecting thread  

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pingu
(@pingu)
Estimable Member
Y axis inprovements collecting thread

The parts from thingiverse for mk3 are working. No more shitty u bolts!

Posted : 18/12/2019 10:26 am
padigree
(@padigree)
Trusted Member
RE: Y axis inprovements collecting thread

Thank you for the picture. 

 Arethese the normal 8mm LM8UU bearings? (X&Z are 10mm?)  Thought about replacing them with Misumi LMU8 and the X&Z with Misumi LMU10W. Nice experiences with Igus bushings, but had to replace them after ~1,5 years due too high tolerances -so I decided to use more Misumis (Quite well after a couple of years if you lubricate and service them correctly. Also the rods are nearly as at the beginning) 

 

Have you any plans of changing the bearings? 

 

This post was modified 2 years ago by padigree
It’s better to give than to receive. Especially advice....
Posted : 18/12/2019 10:59 am
pingu
(@pingu)
Estimable Member
Topic starter answered:
RE: Y axis inprovements collecting thread

https://forum.prusaprinters.org/forum/hardware-firmware-and-software-help/worlds-first-teardown-bom-bill-of-materials-closest-look-for-prusa-mini/#post-179792

There i have done a teardown, rest of the printer is following tomorrow. Its back together again and peints, but have no time today to post the missing things.

 

Actually i dont plan to replace the bearings, but i greased all of them on all axis.

Posted : 18/12/2019 11:11 am
padigree
(@padigree)
Trusted Member
RE: Y axis inprovements collecting thread

Thanks again, Haven't seen you've updated it yet. Great work and I think useful for many people waiting for their printers 😀 

It’s better to give than to receive. Especially advice....
Posted : 18/12/2019 11:56 am
weak
 weak
(@weak)
Eminent Member
RE: Y axis inprovements collecting thread
Posted by: @pingu

Actually i dont plan to replace the bearings, but i greased all of them on all axis.

So the bearings are not properly greased, just like on the MK3?

 

Posted by: @pingu

The parts from thingiverse for mk3 are working. No more shitty u bolts!

Could you elaborate what the advantage of these u-bolts is?

Thanks!

Posted : 18/12/2019 12:18 pm
JoanTabb
(@joantabb)
Moderator
RE: Y axis inprovements collecting thread

Ubolts can hold the bearings tighter than cable ties which was the original solution. 
but, if over tightened the ubolts can damage the bearings and cause damage to the smooth rods...  

regards Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 18/12/2019 5:27 pm
weak liked
ekkilein
(@ekkilein)
Eminent Member
RE: Y axis inprovements collecting thread

@pingu

Which ones (thingi number) are you using?

Posted : 31/12/2019 1:09 pm
joeri.s
(@joeri-s)
Active Member
RE: Y axis inprovements collecting thread
Posted by: @pingu

The parts from thingiverse for mk3 are working. No more shitty u bolts!

Can you share the Thingyverse link please?

...
Posted : 01/03/2020 8:10 am
Benji
(@benji)
Estimable Member
RE: Y axis inprovements collecting thread

I printed and replaced my u-bolts with this model: https://www.thingiverse.com/thing:3068363

However, the single right mount will not fit because of the x-z assembly mounting bracket. I had to modify that bearing mount a little bit on one side.  

Prusa Mini Silicone Bed Leveling Mod: https://bbbenji.github.io/PMSBLM/...
Posted : 01/03/2020 7:46 pm
Oliver Thomsen
(@oliver-thomsen)
Eminent Member
RE: Y axis inprovements collecting thread

I used two of  these for the left side https://www.prusaprinters.org/prints/10429 and made my own remix for the right side https://www.prusaprinters.org/prints/29435-prusa-mini-y-axis-bearing-strap-right-side

Posted : 13/04/2020 4:16 pm
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