Fireball Pinewood Derby Car 3D print model
cgtrader
File: Fireball2.STL Name: Fireball Pinewood Derby Car Material: 142.18 grams ( 0.313 lbs) Infill 75 % Print Time: 9 hr 4 min Material: 136.43 grams ( 0.300 lbs) Infill 70 % Print Time: 8 hr 42 min Material: 129.6 grams ( 0.286 lbs) Infill 65 % Print Time: 8 hr 20 min Size: 177.8 mm (7") x 44.45 mm (1.75") x 31.75 mm (1.25") Resolution: 0.20mm Layers: 165 layers Rafts: Yes Supports: No Function: Originally designed by a Boy Scout in SolidWorks so that it could be CNC milled from a blank piece of wood. It didn't win for speed but it was a cool design. I tweaked the design so that it could be 3D printed. If you weigh your axles and your wheels, you can pick your infill percentage and get as close to 5 ounces (141.8 grams or .3125 lbs) as possible (remember that paint weighs something as well).
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