The "BIG ONE", 5.3kWh BMW i3-module battery trailer build

[SimosMCmuffin]

@infiniteoffset

What wheels will you use on the trailer? Same as on your board or bigger like bicycle trailers have?

In the pictures above the board has 8" wheels, but I’m currently printing new rims for 10" tires, which I’m planning on using. I think I’ll be using the 8" wheels on the trailer.

More about those wheels and rims here:

3D-Printed Pneumatic Rims For Win and Fitment | Wheels | Hubs

I haven’t read the whole thread, but an early prototype (the second one to explode) massed about 210 grams all bolted together with no bearings. A few percent of that is the bolts, but let’s round it to say 200 grams per wheel. A nice roll of filament runs between $20 and $50+ per kilo, so that’s five wheels per spool, or between $4 and $10+ per wheel. If you used CF-nylon or something else more exotic that could increase the price to $20/wheel or more.