Home / Parts / Rolling, big wheels body
Rolling body with big wheels: steadiest to drive
The Rolling body with big wheels rolls on two 64 mm wheels with two 18650 cells flat in its floor. With the Gem head the bot is 106 x 114 x 116 mm and 342.6 g, and the body itself is 123.9 g of printed plastic in 8 pieces. Built and tested by 3D3D that bot costs $362.89 CAD, the default.
- 106 x 114 x 116 mmwith the Gem head
- 123.9 gPETG and TPU, 8 pieces
- defaultbuilt price against the Mini v2's body
- 8 of 8heads that fit
What it is
Two 64 mm wheels outside the body and two 18650 cells flat in the floor between them: the steadiest to drive. The belly is clear so the cells show.
Its face, voice and moves run in the test room today. The program that runs them on the real ESP32-S3 chip is not built yet.
What it costs with each head
| Head | Look | Built by 3D3D (from) | Against the Gem head |
|---|---|---|---|
| Gem head | A shield, narrow chin | $362.89 | Same price |
| Mini head | Friendly and rounded | $352.94 | −$9.95 |
| Dome head | Round face, half-ball back | $363.10 | +$0.21 |
| Visor head | A wide band, camera at the side | $363.04 | +$0.15 |
| Cyclops head | One big eye | $363.70 | +$0.81 |
| Twin-lens head | Two lens rings (one camera) | $363.66 | +$0.77 |
| Antenna head | Bubble head, two antennae | $363.25 | +$0.36 |
| Pod head | A capsule on a stem | $363.77 | +$0.88 |
Bought parts of this body
| Part | Used | Pack price (CAD) | Your cost, whole packs | 3D3D's price, parts + 15% |
|---|---|---|---|---|
| FS90R continuous servo, 2-pack (the 64 mm wheel and tyre are printed; the pack's own horn screws on) Big wheel drive (FS90R, 64 mm). amazon.ca, seen 2026-11-02. Listing | 2 | $19.97 for 2 | $19.97 | $22.97 |
| 2 x 18650 battery holder with leads (uxcell), 2-pack Battery belly (2 x 18650 holder). amazon.ca, seen 2026-11-02. Listing | 1 | $9.39 for 2 | $9.39 | $5.41 |
| 18650 cells, unprotected flat top (Samsung INR18650-25R), sold one each Battery belly (2 x 18650 holder). amazon.ca, seen 2026-11-04. Listing | 2 | $12.99 for 1 | $25.98 | $29.88 |
| Adafruit #4410 Micro Lipo USB-C charger USB-C charger (Adafruit 4410). amazon.ca, seen 2026-11-04. Listing | 1 | $9.95 for 1 | $9.95 | $11.44 |
| 5 V 2 A charge/boost boards, 5-pack (DAOKI) 5 V boost board (stand-in). amazon.ca, seen 2026-11-04. Listing | 1 | $15.79 for 5 | $15.79 | $3.63 |
| PTFE glass-cloth tape 10 mm x 10 m (the pad on the glide's dome), sold by the roll Tail glide (third point). amazon.ca, seen 2026-11-02. Listing | 1 | $9.98 for 1 | $9.98 | $11.48 |
| M3 x 4 self-tapping screw Tail glide (third point). amazon.ca, seen 2026-11-04. Listing | 1 | $16.99 for 50 | $16.99 | $0.39 |
| M3 x 8 pan-head screw M3 screw hole with head recess, M3 screw column, tall (base to lid). amazon.ca, seen 2026-11-04. Listing | 5 | $16.98 for 20 | $16.98 | $4.89 |
Pack prices are what amazon.ca listed on the date shown.
The bot it makes
The Mini v2 is this body with the Gem head. See all the parts or the questions people ask.
All prices are in Canadian dollars before tax and shipping. Bought parts are priced from amazon.ca listings (seen 2026-11-04), plus 15% when 3D3D buys them. Printing, the build and test fee and finishing are 3D3D's own rates, listed on the prices page.