O-ring fix for Xiaomi Mi Pump 1S
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This is a fix for the cylinder o-ring for Mi Pump 1S. It stopped compressing air, but the motor was running normaly.
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Updated at source:
Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution — Noncommercial
My Xiaomi Mi Pump 1S stopped compressing air last week, but the motor was runnig ok.
A quick disassembly revealed a damaged cylinder o-ring. So i designed and printed a new one.
It's running fine, inflated two bycicle tyres, and corrected the pressure on 4 car tires. Not shure how long it will hold up.
The used material was Recreus Filaflex 60A TPU. 4 minutes print time.
Posted the .3MF file containing the print settings. Make shure the filament is dry and the extruder gears have low tension, if you use this filament.