Bi-Material Xiaomi Roborock Side Brush
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A bi-material (hard case + soft legs) side brush replacement for Xiaomi Roborock vacuums.
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Model information
- Source
- Printables
- Category
- Other House Equipment
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
This is my take on making a side brush replacement for Xiaomi Roborock vacuums. I'm only using it on hard floors so I do not know how well it'll perform on rugs.
Print the case with PLA, ideally using the “with sacrificial layer” (no support) variant with .2mm layer height and this orientation:

Print the legs with TPU and .2mm layer height. The hub can have sparse infill but make sure the legs themselves have 100% infill:

Take the hard case and punch through the sacrificial layer with a screw driver where the screw typically goes and then simply push the legs into the case.
I modeled two holes in the case (and legs) for M2.2 grub screws however it seems that friction fitting is good enough so I never had to use them.
