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Herringbone planetary gear very stiff  

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dloyer
(@dloyer)
Active Member
Herringbone planetary gear very stiff

Recently assembled the MK3S kit.  Non functional prints such as the logo and whistle come out well.  

Prints with moving parts such as the planetary gear test print or fidget cubes come out very stiff.  I have to break them apart, even then they are very stiff and hard to move.  

Any suggestions on how to debug?  

Love the new printer.  Much better than my old Luzbot Mini

Best

Posted : 27/06/2021 6:09 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Herringbone planetary gear very stiff
Posted by: @dloyer

Recently assembled the MK3S kit.  Non functional prints such as the logo and whistle come out well.  

Prints with moving parts such as the planetary gear test print or fidget cubes come out very stiff.  I have to break them apart, even then they are very stiff and hard to move.  

Any suggestions on how to debug?  

Love the new printer.  Much better than my old Luzbot Mini

Best

Hello and welcome to the Prusaforum!

Based on the sparse information, I can only assume that the extrusion quantity does not fit, respectively too much filament is extruded.

https://help.prusa3d.com/en/article/extrusion-multiplier-calibration_2257

wbr,

Karl

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 27/06/2021 7:02 pm
Diem
 Diem
(@diem)
Illustrious Member
RE: Herringbone planetary gear very stiff

@dloyer

Most print in place parts are printed with close tolerances and it is usual to run them in by working them.  If they print free then after a short period of use they will become very sloppy...

The best policy is to work them dry until they begin to run free and then, after blowing out any debris, lubricate and work the lubricant around the mechanism.

Cheerio,

Posted : 28/06/2021 1:34 am
dloyer
(@dloyer)
Active Member
Topic starter answered:
RE: Herringbone planetary gear very stiff

Thanks guys. 

The calibration cube looked pretty good.  Will try adjusting the flow a little lower.

Will also see if it gets looser with a little use

Best

-Doug

 

Posted : 29/06/2021 1:07 am
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