Dome head: round face, half-ball back
A round face on a half-ball: the back curves away like a dome. The Dome head is 76 x 44 x 76 mm and 45.7 g of PETG in 5 printed pieces, with a 2 inch touch screen, a camera, a speaker and an ESP32-S3 camera board inside. On the Mini v2's body it makes a bot that costs $363.10 CAD built and tested by 3D3D, $0.21 more than the Gem head.
- 76 x 44 x 76 mmwidth x depth x height
- 45.7 gPETG, 5 pieces
- +$0.21built price against the Gem head
- 23 of 24add-ons that fit
What it is
The cheeks are cut flat for the speaker grille and the snaps, the camera sits on top, and it stands on a short plinth.
Every head holds the same bought parts, so a swap changes the printed grams and the plates, not the parts list: the Waveshare 2" capacitive touch LCD (18-pin FPC option) ($29.99), the Waveshare ESP32-S3-CAM-OV5640 board (camera and 2 W speaker in the box) ($37.99), two M3 heat-set inserts and the snap hooks. Its seat is the same on every body, so it fits all 5.
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 on each body
| Body | Built by 3D3D (from) | Against the Gem head |
|---|---|---|
| Rolling, big wheels | $363.10 | +$0.21 |
| Rolling, small wheels | $295.93 | +$0.20 |
| Crawler | $300.37 | +$0.21 |
| Desk, turns and nods | $315.48 | +$0.34 |
| Tower | $324.76 | +$0.34 |
The difference is the printed grams and the plates: printing is $5.00 setup plus $0.11 a gram plus bed time for each plate. This head uses the Gem's three colours (teal, bone and glow), so it adds no plate.
Add-ons that fit this head
- Cat ears
- Bunny ears
- Bear ears
- Antenna with bulb
- Twin antennas
- Little horns
- Crest
- Carry handle
- Halo ring
- Angry brows
- Visor hood
- Chin
- Cheek pods
- Eye rings
- Chest plate
- Bumper
- Star badge
- Louvre slots
- Side vents
- Speaker grille
- Back fin
- Hex plates
- Tail
The other heads
See the bots or read 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.