Gear RC Car

    I bought a RC, an Ansmann Racing Shourt Course a long time ago.

    Like this in the following figure:

Fig.1 - RC Ansmann Racing Shourt Course.

    This RC has walked a lot in the last years, until the main gear of the differential ended up wearing out its teeth.

    After that the RC was stopped for a long time. Until I bought a 3D printer and finally I could print the part that was broken. I decided to open the differential to remove the worn gear and make another one in solidworks, this was the end result.

    Here are some photos of the final piece already printed and assembled with the cell phone and tripod.

    As features it has:

• D1: 36.60mm;
• D2: 16mm;
• L1: 420 mm;
• L2: 181 mm;

Fig.2 - Diameter Gear.

Fig.3 - Width Gear.

    I leave here the gear renders:

Fig.4 - Render Gear front view.

Fig.5 - Render Gear back view.

    After that it was printed in 3D in ABS, 100% Infill and with a resolution of 0.05mm hight, it was the first time to print with the maximum quality of the printer.

    I put the gear in the RC and to this day it is still working.