I decided to design and print the wheels after trying to use some fancy store-bought wheels. What I determined is that printing allows me to attach the motors quickly as opposed to trying to modify the store-bought ones.
In the first print, I created a single piece for the wheel, which did not work out so well because the 3d printing bridging of the inner wheel did not turn out well. The second design is a three-piece design, which prints better and it allows me to redesign parts as needed.
Above are the three parts, after a bit of sanding, the parts fit. You start with the two outer parts. You may also notice that in my wheel design, there is no inside lip because the printer would not print that well, and there will not be enough speed or stress on these things to cause an issue with the tire, a bit of glue will fix it.
Make sure you dry-fit everything before you glue it. I keep my “dry fit” until I run a few tests of the almost completed rover.
Overall the wheels turned out great.
Here is a link to the tires. Yiguo RC 1:10 Off-Road RC Car Plating 12 Spoke Wheel Rims and Gravel Pattern 96mm Tires Black set of 4 If I was on the ball, I would have ordered 3 packs, they do take 20 days to get to the states.
In the photo above the connector/collar is from Great Planes Hobbies. After an attempt to put it in, I figured out the way to do it.
- Put the little set screw in first so that it’s almost in all the way.
- Tap in the collar with a hammer on a hard surface.
- Loosen the set screw.
- Put in the motor.
- Tighten the set screw.
- Place assembly in the wheel.