80's Toy Store Radio Controlled RC Car

thingiverse

I used to love the RC cars from Children's Palace and Toys R Us when I was a kid, and as a young adult and as an old man. It seemed like a great project to use to learn about Fusion 360 and how to use my new 3D printer. This is my attempt at recreating the same sort of car that I cut lawns for money to buy in the 80's. It is almost entirely made from 3D printed parts, which works well overall, except maybe the tires aren't as grippy as non-3D printed parts and I think I have too much power in it. I've divided the parts into sections and put the various sections into zip files. The body.stl file is also included in the body.zip file. To finish this project, you'll need: Electronics: RC radio and receiver 20mm motor, 16mm mounting holes Electronic speed control Mini servo Battery - the compartment is small, so check the size Antenna tube Mechanical: Losi Mini 8ight spur gear 62 tooth Part LOSB1922 48p or .5mod pinion 13t or smaller, suitable for your motor RC body pin/clip 4 - 6x10x3mm bearings for gearbox 4 - 3x6x2.5mm bearings for front wheels 1.4mm music wire for tie rods and drive axle pin 3 suspension springs - I used Part 88018 from Menards for each front and one split in half for rear 2 - 3x25mm screws for rear axle, which goes through bearings to strengthen the axle Assorted other 3mm, 2.5mm, 2mm and 1.5mm screws Print Settings: Printer: Flashforge Dreamer Rafts: Doesn't Matter Supports: Doesn't Matter Resolution: .1 and .2 Infill: 10% + 100% Notes: The body is PLA, printed at .1 with 100% infill; tires are Ninjaflex, printed at .2 and 10% infill; the rest of parts are PETG, printed at .1 and 100% infill. Print the parts in an orientation that makes most sense for strength. For example, print the rear axle horizontally so it is strong enough to support the weight of the car. Use 25mm bolts/screws to hold on the rear wheels, which go into the gearbox past the outer bearing. This and printing the axle horizontally seem to greatly increase the strength of the rear end. After Printing: Clean off supports as needed. Smooth parts like shocks that fit together with sandpaper. Be careful with screws; they thread the parts together. Use a 10mm long piece of 1.4mm music wire as a key in the rear axle (there is a hole) to interlock with the spur adapter.