The file 'Bicycle Seat Power Bank 3D Printer Model' is (stl) file type, size is 297.9KB.
One piece locking-in design and very light. Still developing on it.
Hole is 23mm
Integrating the male USB into it and develop a cover or way to secure the power bank is next.
There is a big edit tree of this on Orchard, one with a backlit bicycle cutout, but it was too much trouble for the result.
https://3dorchard.com/app/single/5897de5aaf58400be5dbcfdc/5967bd10cb9d150cf298ecf9
I have some of these power banks for sale. With Panasonic 3400mAh cells.
I am developing a full bicycle package with stick-on, paint or glass over power feeds so this is the least obtrusive and lightest possible and good light for 12-24 hrs.
Front and back lights are here on TV:
https://www.thingiverse.com/thing:2331829 LED Headlight
https://www.thingiverse.com/thing:2330874 Back Seat Post LED Light
part-9g16og-1.stl | 2.2MB |