Brackets and mounts
STEADY-WRITE V3 Sliding Forearm Support (Exploded)
- Bounding box
- 2355.0 × 190.0 × 40.0 mm
- Engine
- Precision B-rep
- Parameters
- 52
- Published
- November 3, 2026
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The prompt
Design a professional 3D CAD model of STEADY-WRITE V3, a sliding forearm support device for handwriting. Include: Base: 190 × 190 × 8 mm Two parallel rails: Ø10 × 170 mm, spacing 100 mm Sliding carriage: 140 × 100 × 12 mm Forearm support: 120 × 65 × 20 mm Cushion, side guards, pen holder and rail end stops. Create accurate solid components, a functional sliding mechanism, a complete assembly and an exploded view. Generate dimensioned engineering drawings, BOM and manufacturing notes. Export actual STEP AP242, STL and native CAD files. Check dimensions, alignment, clearances and collisions. Ensure all parts fit together. Do not invent validation results. Use professional industrial design, rounded edges and safe ergonomic features. Keep wrists and fingers free. This is a prototype, not a certified medical device. Prioritize mechanical accuracy over appearance.
Parameters
| Name | Value | Range |
|---|---|---|
| Exploded layout gap | 220 mm | 150 – 400 |
| Base plate length (X) | 190 mm | 120 – 300 |
| Base plate width (Y) | 190 mm | 120 – 300 |
| Base plate thickness | 8 mm | 4 – 20 |
| Base corner radius | 12 mm | 2 – 25 |
| Corner mounting hole Ø | 4.5 mm | 2 – 10 |
| Rail alignment slot width | 16 mm | 8 – 30 |
| Rail alignment slot depth | 2 mm | 0.5 – 4 |
| End-stop fixing hole Ø | 5.5 mm | 3 – 10 |
| End-stop hole X offset | 20 mm | 8 – 40 |
| End-stop hole Y offset | 84 mm | 60 – 120 |
| Rail diameter | 10 mm | 6 – 20 |
| Rail length | 170 mm | 80 – 260 |
| Rail centre-to-centre spacing | 100 mm | 60 – 160 |
| Carriage length (X) | 140 mm | 80 – 220 |
| Carriage width (Y) | 100 mm | 60 – 180 |
| Carriage thickness | 12 mm | 8 – 30 |
| Carriage corner radius | 8 mm | 2 – 20 |
| Rail guide bore Ø | 10.4 mm | 6 – 22 |
| Mounting hole Ø | 4.5 mm | 2 – 10 |
| Mounting hole X offset | 30 mm | 10 – 55 |
| Mounting hole Y offset | 20 mm | 8 – 40 |
| Support length (X) | 120 mm | 70 – 200 |
| Support width (Y) | 65 mm | 40 – 120 |
| Support height | 20 mm | 10 – 40 |
| Support corner radius | 10 mm | 2 – 25 |
| Support top edge fillet | 2 mm | 0.5 – 5 |
| Trough radius | 80 mm | 40 – 150 |
| Trough depth | 5 mm | 1 – 12 |
| Cushion length (X) | 110 mm | 60 – 180 |
| Cushion width (Y) | 55 mm | 30 – 100 |
| Cushion thickness | 10 mm | 3 – 25 |
| Cushion corner radius | 12 mm | 2 – 20 |
| Cushion top fillet | 3 mm | 0.5 – 6 |
| Guard length | 120 mm | 60 – 200 |
| Guard thickness | 12 mm | 5 – 25 |
| Guard height | 25 mm | 10 – 50 |
| Guard corner radius | 5 mm | 1 – 10 |
| Guard top fillet | 3 mm | 0.5 – 6 |
| Guard mounting hole Ø | 4 mm | 2 – 8 |
| Pen holder length (X) | 25 mm | 15 – 60 |
| Pen holder width (Y) | 20 mm | 12 – 50 |
| Pen holder height | 35 mm | 15 – 80 |
| Pen holder corner radius | 6 mm | 1 – 12 |
| Pen bore Ø | 14 mm | 6 – 30 |
| Pen bore depth | 30 mm | 8 – 70 |
| End-stop length (X) | 120 mm | 60 – 200 |
| End-stop width (Y) | 18 mm | 10 – 40 |
| End-stop height | 14 mm | 11 – 40 |
| End-stop corner radius | 4 mm | 1 – 8 |
| Rail end bore Ø | 10.2 mm | 6 – 22 |
| Rail bore height above bar base | 8 mm | 6 – 20 |
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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