Xiaomi Power Bank Bicycle Seatpost Mount

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This portable charger holder attaches to your bicycle seatpost, ensuring your phone never runs out of power while cycling. The holder is specifically designed for an older 10400 mAh Xiaomi power bank, which can be seen in one of the accompanying images. The holder can be attached directly to your bike using zip-ties or by printing the stem_mount parts, allowing you to mount it anywhere on your frame (27 mm diameter). This design consists of four parts: * holder.stl * cover V2.stl * stem_mount.stl * stem_mount2.stl (print this part twice!) If you want to attach the holder directly using zip-ties, you only need to print the first two files. Otherwise, print the stem_mount.stl and stem_mount2.stl (print this part twice!) to mount the holder to your bicycle frame. The stem_mount.stl part can be attached to the holder using zip-ties. The cover can be attached to the holder in two ways: * Tap the holes in the holder * Insert heat set threaded inserts in the holder I chose to attach the cover using heat set threaded inserts. A link for buying these is provided below. Because I tried attaching an older version of the cover with magnets, I could only use two of the four mounting holes. This is why you only see two threaded inserts and bolts in my pictures. To insert the heat set threaded inserts, you can use the tip of a soldering iron to gently push the threaded inserts into the holes. Don't heat the threaded inserts too long at a time, as this will cause the surrounding plastic to lose strength. This is all the hardware needed for this project (affiliate links): * M4 x 20 bolts (4 needed): M4 bolts * M4 nuts (4 needed): M4 nuts * M3 x 6 bolts (4 needed): M3 bolts * M3 heat set threaded inserts (4 needed): M3 threaded inserts If you want to support me for the designs I publish for free, please consider using my AliExpress Affiliate Link when buying something from AliExpress. It doesn't cost you anything extra, but helps me out a lot!