SMARS - my version of the wheel hull and tire.

thingiverse

SMARS - my version of the wheel hull and tire. Support under the axles for the bearings is required for printing. These axle-case parts may require careful use of a file or sandpaper. Contrary to fears, the bearings hold firmly. If they loosen too much, you can apply a small amount of droplet glue to the axles. Such glue does not stick to metal, so when it dries the bearing can be removed later. The wheels are supported by bearings on the axles protruding from the frame and not on the motors, so the motors work comfortably. Two motors are enough, but you can also give 4, I gave two. The wheel consists of the bearing, the attachment of the bearing to the motor axle and to the wheel housing, a thin masking washer, the rim and the actual wheel housing. I printed the wheel components from PLA, PET, ASA. The fuselage of the SMARS mainly from PLA. The hole on the side is left for attaching a micro USB cable for charging a 9v battery size. The rest of the components should be somewhere to be found under SMARS. Be sure to print the tire with 0% infill!!! Otherwise it will be too hard and can not be applied. I used Noctuo grip hard filament to print the tire. You can also use standard caterpillars. To remove the parts from the inside of the wheel housing, I included a two-piece extruder. It makes it easier to replace wheel parts. Original design is here: https://www.thingiverse.com/thing:2662828