Brackets and mounts
Robotic Hand Palm Housing + Slider
- Bounding box
- 85.0 × 100.0 × 51.0 mm
- Engine
- Precision B-rep
- Parameters
- 25
- Published
- November 2, 2026
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The prompt
Design a mechanical palm housing and internal slider assembly for a robotic hand, optimized for FDM 3D printing. Part A (Palm Housing): Create a rectangular base 100mm long (Y-axis), 85mm wide (X-axis), and 35mm thick (Z-axis). Hollow out the center to create a rectangular linear track 70mm long, 45mm wide, and 25mm deep. On the back face (proximal end), cut a 12mm diameter through-hole centered on the track to allow a linear actuator rod to pass through. On the front top edge (distal end), create 4 evenly spaced clevis hinges. Each clevis should consist of two 4mm thick vertical tabs with an 8.5mm gap between them, featuring a 3.4mm through-hole for an M3 bolt. Directly below each clevis hinge, cut a 10mm wide slot through the front wall of the palm housing so linkage rods can pass from the inside track to the outside. Part B (Slider): Inside the track, model a separate sliding block 35mm long, 44.2mm wide, and 24.2mm thick (leaving a 0.4mm total clearance for sliding). On the back face of this slider, model a 5mm blind hole to mount the actuator rod. On the front face of the slider, add 4 protruding mounting tabs (5mm wide, 10mm long) with 3.4mm holes to connect the linkage rods. Output both parts in a single STEP file.
Parameters
| Name | Value | Range |
|---|---|---|
| Housing Width (X) | 85 mm | 40 – 200 |
| Housing Length (Y) | 100 mm | 40 – 200 |
| Housing Thickness (Z) | 35 mm | 15 – 100 |
| Track Width | 45 mm | 10 – 150 |
| Track Length | 70 mm | 10 – 180 |
| Track Depth | 25 mm | 5 – 90 |
| Actuator Rod Bore | 12 mm | 2 – 30 |
| Front Wall Rod Slot Width | 10 mm | 3 – 30 |
| Front Wall Rod Slot Height | 20 mm | 5 – 30 |
| Clevis Hinge Count | 4 pcs | 1 – 8 |
| Clevis Tab Thickness | 4 mm | 1 – 10 |
| Clevis Gap | 8.5 mm | 2 – 20 |
| Clevis Tab Height (above top face) | 16 mm | 5 – 40 |
| Clevis Edge Margin | 3 mm | 0 – 20 |
| Clevis Pin Hole (M3) | 3.4 mm | 1 – 10 |
| Slider Width (X) | 44.2 mm | 5 – 150 |
| Slider Length (Y) | 35 mm | 5 – 180 |
| Slider Thickness (Z) | 24.2 mm | 2 – 90 |
| Slider Position Along Track | 0 mm | -30 – 30 |
| Actuator Rod Blind Hole | 5 mm | 1 – 20 |
| Blind Hole Depth | 10 mm | 1 – 30 |
| Linkage Tab Width | 5 mm | 1 – 20 |
| Linkage Tab Length | 10 mm | 2 – 40 |
| Linkage Tab Height | 8 mm | 2 – 30 |
| Linkage Tab Hole | 3.4 mm | 1 – 10 |
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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