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WLToys a9x9 Hexless Wheels and Tires

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Creation quality: 5.0/5 (1 vote)
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  • Wheel_V26.stl
  • a959_Tire_V15.stl

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Publication date 2023-10-15 at 20:15
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Published to Thingiverse on: 2020-05-22 at 23:01
Design number 1516189

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3D model description

The tires on my venerable WLToys A979a finally wore out, along with the wheels all being broken and made of mostly glue, and as a replacement set was ~$15 I thought I'd try printing some.

These tires are "airless", and are locked to the rim for side loads as well as rotational. they have a little texture to help them grip but are not great grass tires. I can post grass-paddles if there is interest.

I spent a long time playing with materials, I was unconcerned with ultimate grip but wanted balance. The cheaper TPU's were pretty useless on another car, so here I went with NinjaFlex. This ends up being ~$2.50/corner, with the wheels like ~19 cents of that.

So far, driving hard, I've gone through ~20-25 1500mAh batteries and I'm starting to lose the first layer on the knobby bits. Still plenty of life left, so this won't be $1/run or anything.

If there is interest, I may make a bigger rim and less ninjaflex version later.

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