The file 'Flexing Battery Holders With Integrated Spring 18500 3D Printer Model' is (stl) file type, size is 295.4KB.
tinkercad would break the spring when imported...mussy the awesome fixed it for me and put it back together...enjoy!
Added a double...per request
battery_holder_double_v3.stl | 435.3KB | |
battery_holder_double_v3_repaired.stl | 485.2KB | |
battery_holder_v3.stl | 159.9KB |