Gears and transmission
TT-Motor Robot Chassis (Base + Cover)
- Bounding box
- 140.0 × 180.0 × 66.5 mm
- Engine
- Precision B-rep
- Parameters
- 32
- Published
- October 7, 2026
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The prompt
A two-wheeled differential drive robot chassis base (140mm width by 180mm height) with mounting cutouts for two TT gear motors, a caster wheel mount at the front, a hollow inner box for an ESP32 board and 18650 battery holder, and a removable top cover with a speaker grille and pan-tilt servo head mount.
Parameters
| Name | Value | Range |
|---|---|---|
| Chassis Width (X) | 140 mm | 80 – 260 |
| Chassis Length (Y) | 180 mm | 100 – 320 |
| Chassis Height (Z) | 40 mm | 20 – 80 |
| Wall / Floor Thickness | 3 mm | 1.5 – 8 |
| Motor Slot Center Y | -25 mm | -80 – 0 |
| Motor Slot Width (Y) | 22 mm | 8 – 40 |
| Motor Slot Height (Z) | 16 mm | 6 – 30 |
| Motor Slot Center Z | 18 mm | 8 – 34 |
| Caster Pad Width (X) | 30 mm | 12 – 60 |
| Caster Pad Depth (Y) | 20 mm | 8 – 45 |
| Caster Pad Height (Z) | 8 mm | 2 – 20 |
| Caster Mount Hole Dia | 3.2 mm | 1.5 – 6 |
| Divider Rib Position (Y) | 0 mm | -60 – 60 |
| Divider Rib Thickness | 2.5 mm | 1.5 – 6 |
| Divider Rib Height | 25 mm | 5 – 35 |
| Cover Boss Dia | 8 mm | 4 – 16 |
| Cover Boss Height | 34 mm | 5 – 36 |
| Boss Pilot Hole Dia | 2.5 mm | 1.5 – 5 |
| Cover Plate Thickness | 3 mm | 1.5 – 8 |
| Cover Screw Hole Dia | 2.8 mm | 1.5 – 5 |
| Speaker Grille Hole Dia | 3 mm | 1 – 8 |
| Grille Hole Spacing | 7 mm | 4 – 15 |
| Grille Columns | 5 pcs | 1 – 12 |
| Grille Rows | 4 pcs | 1 – 12 |
| Grille Center Y | -50 mm | -70 – 40 |
| Servo Head Center Y | 55 mm | 0 – 80 |
| Servo Head Base Width | 44 mm | 20 – 80 |
| Servo Head Base Depth | 30 mm | 15 – 60 |
| Servo Head Base Height | 6 mm | 2 – 20 |
| Pivot Ear Thickness | 3 mm | 1.5 – 8 |
| Pivot Ear Height | 18 mm | 6 – 40 |
| Pivot Hole Dia | 3 mm | 1 – 8 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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