RC crawling hub · v1

Every printable upgrade for your rig: sorted by chassis, with fit status and the gearing math built in.

57 free and paid 3D-printable parts from Printables, Thingiverse, MakerWorld and Cults3D. Each one links to the original listing and credits its designer. Where the source states them, we list the material and hardware, and every part has a fit status.

Pick your chassisOpen the gearing calculator

Browse by chassis

Axial · 1/10

Axial SCX10 III

The 1/10 trail benchmark: portal-ready axles, a DIG/2-speed LCX transmission, and a lot of body variants (Base Camp, JLU, Gladiator, Bronco). Check body compatibility before you print.

14 printable parts →

Traxxas · 1/10

Traxxas TRX-4

Portal axles, a two-speed transmission and T-Lock diffs. Traxxas sells overdrive and underdrive diff gears, so front/rear OD tuning is a real option on this truck.

15 printable parts →

Axial · 1/24

Axial SCX24

The micro crawler with the biggest printable ecosystem: links, LCG chassis, battery trays, body mounts and beadlocks. Check wheelbase and body (C10, Gladiator, Bronco, JLU) before you print.

15 printable parts →

Traxxas · 1/18

Traxxas TRX-4M

A 1/18 truck with a steel ladder frame, locked spools and swappable transmission modules. Popular prints are LCG chassis, bumpers, roof racks and battery relocation.

13 printable parts →

How fit status works

No part on CrawlWorx has been test-fitted by us yet. Every listing is either reported or unverified, so check body and wheelbase before you print.

Reported fit

The designer or reviewers say it was run on this chassis. We haven't confirmed it.

Unverified

The source lists it for this chassis, but nobody has confirmed the fit. Check body and wheelbase before you print.

Gearing, explained in plain numbers

Work out crawl ratio, TRX-4 front/rear overdrive and wheel speed from motor KV, voltage and tire size. Presets use stock ratios only where a manufacturer source confirms them, and anything estimated is labelled as estimated.

Calculate your gearing

Our own parts

We're designing CrawlWorx parts for the gaps we see most: a TRX-4M LCG tray, SCX24 high-clearance links and clipless body mounts. See the shop preview.