open rc silicon caulk tire mold

thingiverse

Hi, this is a tire mold designed to cast grippy tires for an open RC F1 car. I realized that standard TPU tires lack sufficient grip to accelerate the car at any reasonable pace. To address this issue, I experimented with wrapping rubber bands around the tires but they kept slipping off and needed rewrapping every five minutes. Then, I attempted to secure the bands using hot glue, but they snapped after a few minutes and became useless. Next, I searched for purpose-built RC car tires, but they were too expensive and shipping times were unacceptably long due to quarantine restrictions. To create these grippy tires, you will need: GE silicone caulk 2x 80mm #8 threaded rods 2x #8 cap nuts 2x #8 hex nuts Canola or olive oil spray Caulking gun Any super glue First, spray the molds with cooking oil, applying an excessive amount to ensure thorough coverage. Then, screw the two halves of the mold together. Next, inject the mold with silicone caulk until it starts flowing out of the second hole. Allow the silicone to cure inside the mold for about two days. Once cured, remove the tire from the mold and let it dry outside for another day. Your grippy tires are now complete. To assemble them, apply super glue to attach the tire to the rim. Repeat this process three times and you will have a set of custom grippy tires for your RC F1 car.