Float LM8UU bearing mount for Anet a8
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Experimental floating LM8UU linear bearing mount using printed leafspring for stabilization. My stock Anet a8 linear…
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Experimental floating LM8UU linear bearing mount using printed leafspring for stabilization.
My stock Anet a8 linear bearing has a grinding problem that leaving a pixie dust on the linear rods that after a few hours of printing, replacing with a printed bushing result in a slip-stick problem which affect print quality. Even the Y axis bearing was aligned smoothly, the pressure from bed level spring cause the Y carriage to bend slightly and cause the bearing to grind/lockup.
So I designed this experimental LM8UU float mount to relieved the rotational force on the linear bearing while still stiff in lateral Z and Y axis force.
According to https://www.igus.com/contentData/wpck/pdf/US_en/DryLin%20Linear%20Bearings%202-1%20Rule.pdf float bearing mount should only be required in 1 of 2 rail in Y carriage.
If your anet a8 has a black plastic bearing mount like in the photo you should only need to print 2 of the float mount for Y carriage and 1 for X carriage, fixbearing.stl was provided in case your stock mount was a different height.
My printer was running on this mount for 100+hours and no more pixie dust found.
Tested with PLA on LM8UU bearing.
May need a 4x M4 screw and nut to install.
Print Settings
Printer Brand:
Anet
Printer:
A8
Rafts:
Yes
Supports:
Yes
Resolution:
0.2
Infill:
100
Filament: PRITOP PLA Green
Category: 3D Printer Parts