3D Design File Download :
https://www.thingiverse.com/thing:589...

Parts List (Affiliate Links):

1 x Aluminum Housed Resistors(50w 8 ohm) https://s.click.aliexpress.com/e/_DB7...
1 x Terminal Strip Screw (20A or 30A) https://s.click.aliexpress.com/e/_DEu...
1 x Banana Plug to Alligator Clip Connector(1m) https://s.click.aliexpress.com/e/_De3...
7 x Banana Socket https://s.click.aliexpress.com/e/_DFf...
5 x Fuse Holders (5x20mm) https://s.click.aliexpress.com/e/_DmY...
5 x Fuse Sets (5x20mm) https://s.click.aliexpress.com/e/_DDS...
1 x QC 3.0 USB Charger Socket https://s.click.aliexpress.com/e/_DC6...
1 x DC Buck Boost Converter https://s.click.aliexpress.com/e/_DFv...
1 x 2 Positions Connector Terminal(Small Type) https://s.click.aliexpress.com/e/_DCi...
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Silicone Wire : https://s.click.aliexpress.com/e/_Dcv...
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1 x Switch(21mmx15mm) https://s.click.aliexpress.com/e/_DFT...
1 x DC Power Supply Jack Socket Female https://s.click.aliexpress.com/e/_DFp...
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Tubular Terminal https://s.click.aliexpress.com/e/_Dl4...
Box Insulated Wire Connector https://s.click.aliexpress.com/e/_Dld...
Crimping Pliers https://s.click.aliexpress.com/e/_DEv...
Heat Shrink Tubing https://s.click.aliexpress.com/e/_DBm...
Tesa Type Coroplast https://s.click.aliexpress.com/e/_De2...