Forgot to add, oogoo is basically silicone caulk + cornstarch + dye to allow it to cure much quicker and look pretty. I’m working on releasing a tread-plate generator so you can quickly enter the diameter of your rim, width, etc and print out a mold to use. 
Originally shared by ThantiK
So, here’s how you make Oogoo tires. Print a negative, mush it all in, trim it up, then replace it in the mold, and fill the gap with more Oogoo! These turned out way more awesome than I expected.
Nice. Pictures of finished Tyre?
I didn’t feel like mixing up more oogoo to fill the gap and complete the tire. I seem to have lost my caulk gun and only did this with the back of a screwdriver handle. I’ve gotta make some changes, but I’ll make another in the coming days and actually complete it.
yeah how strong is the join?
I’ve been wanting to try this, but my ideas mostly consisted of printing a complete mold so that there would be no join.
Can you join a cured section to a wet section to make long lengths? Also could you embed a mesh fabric or glass tape and mold a no-stretch toothed belt?
Ohh embedding mesh! that’s a great idea!
I don’t see why it wouldn’t work.
@Robert_Wozniak yeah. It’ll attach to its cured form readily and the bond is just as strong. I’m sure you could embed string, metal, etc in it.
Awesome @ThantiK !!!
You should be able to print this stuff directly onto/into the weave of any sort of fabric.
For ABS and PLA, I find that as long as you slow the first layer (or three) down enough to inject your material in “deep enough” into the weave, it’s really difficult to separate the two after. I use a standard off-the-shelf spray-on adhesive to keep cloth stationary across my build platform. Securing it around the perimeter isn’t enough since the individual threads tend to pull around as the nozzle lays down the first few layers, and the fabric pulls up as the material cools/cures.
Interesting. My brother and I were just thinking of doing this with printed tire molds. Is your plan to create a tire with no side wall, glued to a wheel?
@Dale_Dunn , no need to even glue it to a wheel. This has some stretch to it. I plan on making it a little smaller than the wheel, with a rim on the wheel to keep it centered.
It shouldn’t be too hard to adapt and make tires with side walls. Basically just take the model of a tire you want to make, boolean difference it, probably divide it into 1/2 with some sort of spacers to keep everything uniform, and then create the tire in 3rds (so you have the overlapping, interlocking tread guiding you)
@ThantiK , for added strength, one could probably add another layer of silicone inside to bond in some kind of belting. I was thinking of some fairly large tires (150-200mm), so some kind of belting may turn out to be necessary.
For the lazy: http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/?ALLSTEPS
This stuff seems awesome. How hard is the stuff in thicker chunks? Do you think I could make solid tires a la F1 racing for RC cars out of this stuff? A friend has a Traxxas car with so much torque he’s shredding tires about once a month.
