The file '21700 4S1P Battery Case 3D Printer Model' is (SLDPRT,STL) file type, size is 690.9KB.
Battery case to build a 4S1P battery pack From 21700 sized cells. Button top variant is 3mm taller than the flat top. The top cover fits both sized bottom cases.
Designed for 3mm X 0.5mm heat-set Inserts
https://www.mcmaster.com/94180a333/
Liquid tight - Heyco - PG9
https://www.mcmaster.com/69915K113/
M3 X 0.5mm X 14mm Socket Cap Screws
https://www.mcmaster.com/91502A106/
I used the following for my builds, I built 7 packs in total, 5 With BMS boards and 2 with RC charger leads.
Flat Top 21700 cells - 5 packs with BMS
Button Top 21700 Cells - 2 packs with RC balance ports
Nickel Strips
Battery Spot Welder
https://www.amazon.com/dp/B09WR7YNTG?psc=1&ref=ppx_yo2ov_dt_b_product_details
RC Balance Ports
https://www.amazon.com/dp/B09DFM29FV?ref=ppx_yo2ov_dt_b_product_details&th=1
BMS Boards
https://www.amazon.com/dp/B07RM573HD?ref=ppx_yo2ov_dt_b_product_details&th=1
Power Connectors - Universal Mate-N-Lok
21700_4S1P_Top_Cover_Rev2.SLDPRT | 262.3KB | |
21700_4S1P_Top_Cover_Rev2.STL | 68.8KB | |
21700_Button_Top_4S1P_Bottom_Rev1.SLDPRT | 187.8KB | |
21700_Button_Top_4S1P_Bottom_Rev1.STL | 118.4KB | |
21700_Flat_Top_4S1P_Bottom_Rev3.SLDPRT | 182.4KB | |
21700_Flat_Top_4S1P_Bottom_Rev3.STL | 118.4KB |