Making Tires with 3D Printed Molds
#16

That's actually a neat idea. I replaced the bed leveling springs on my printer with silicone bushings but didn't think to do the same with car springs. It might not scale up, but for that little pancar it seems like a cool idea.
#17
Tech Elite

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#18
Tech Elite

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BTW , just wanted to update.. I have been running my cast silicone tires on the RCP track for about 3 months now.. Still no track damage, still no issues with running purchased compounds and them not hooking up.. I am going to maintain my position that food safe silicones do not leach chemicals out and therefore do not destroy the track surface.. I will say this , the 15a wears super fast!! I have went through 3 pair of rear tires on the 1/36 car so far running 15A in R and went to 30A in front..
#19
Tech Rookie

I hope everything goes well for you! I discovered that even in the slot car industry, where silicone and urethane tires are more common, there is still strong opposition to their use. The rubber purists who know all the tire voodoo don't like that urethane tires maintain consistent high levels of grip without needing to be treated in any way similar to the dispute about brushed and brushless tires back in the very early.
#20
Tech Elite

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I hope everything goes well for you! I discovered that even in the slot car industry, where silicone and urethane tires are more common, there is still strong opposition to their use. The rubber purists who know all the tire voodoo don't like that urethane tires maintain consistent high levels of grip without needing to be treated in any way similar to the dispute about brushed and brushless tires back in the very early.
#21

I'm actually a bit less concerned about the rules for the larger scale tires I'm working on. Interestingly the ROAR rules define a rubber tire as "a tire molded using rubber or similar synthetic material" so for my application I don't think I have too much to worry about. In fact, the way its written I think even a molded silicone tire would be completely legal. The only other statement in the rules is "tires will be black" which I find interesting. "will be" is not the same as "shall be" or "are required to be."