Free No account needed

RC Wheel Model Studio

Free RC car wheel generator with 14 car presets, hex hub, spokes and tire bead channels, as an STL, no account

RC Wheel Model Studio is a free browser tool for replacement or custom wheels for an RC car. Free, no account. Exports STL. Last checked 13 October 2026.

Open RC Wheel Model Studio See alternatives

Opens randall-frank.github.io

At a glance

Price: Free, no account
Runs on: Browser
Exports: STL
Multicolor: No, single color
Account: Not needed
Open source: Yes
Skill level: Easy: a few settings to tune
Best for: Replacement or custom wheels for an RC car
Selling prints: Allowed Confirmed by the maker, Randall Frank, by email on 13 October 2026: there are no restrictions on the generated STL files, and you can sell prints of anything you generate.
How we checked: Made and downloaded a file Opened the app without an account, generated the default 5-spoke wheel and downloaded the STL (55 mm across, 26 mm wide, one piece); saw the 14 car presets and save/load buttons
Checked by: Mike Janssen
Last checked: 13 October 2026

Open generator

Sources: RC Wheel Model Studio, wheel_studio on GitHub (checked 13 October 2026)

Something out of date? Let us know

Made RC Wheel Model Studio? Get the listing badge

What is RC Wheel Model Studio?

RC Wheel Model Studio is a browser app by Randall Frank that builds a wheel for a radio-controlled car from an OpenSCAD model. You pick a car preset or start from the defaults, change the numbers, press Generate STL and check the result in a 3D preview with top, bottom and side views before you download it.

The settings come in six groups: General (mesh quality, wheel pin hole and air hole), Shroud (diameter, thickness, width and an inner rim bevel), Tire channels (width, thickness and the height of the inner and outer bead ridges), Hub (hex size across flats, hex depth, hub diameter, pin inset and how far the hub sits from the inner face), Spokes (1 to 20 spokes, how solid they are, root widths and offsets, twist at the hub and rim, smoothing and round holes) and Advanced (a clearance for your printer). The 14 presets cover wheels for Axial, Kyosho, Rlaarlo, Tamiya and Team Associated/Losi cars, a Model Reference tab shows cross-section diagrams with every setting marked, and Save Params and Load Params keep your settings in a file.

The output is one STL of the wheel; the tire is not included. It is free, has no account, and the code is on GitHub under the MIT license. The maker confirmed that you can sell prints of the wheels you generate. The app is new (July 2026) and has few users so far. It suits RC hobbyists replacing or restyling the wheels on a buggy, truck or crawler.