Enclosures and housings
Wound Dressing Dispenser – Exploded Assembly
- Bounding box
- 283.3 × 60.0 × 74.0 mm
- Engine
- Precision B-rep
- Parameters
- 77
- Published
- August 7, 2026
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The prompt
Design a professional parametric mechanical CAD assembly for a handheld one-hand assistive smart wound dressing dispenser. Overall Dimensions: Length: 90 mm Width: 60 mm Height: 55 mm Housing: - Two-piece enclosure (Top Cover + Bottom Base) - Wall thickness: 2.5 mm - Rounded corners (R8 mm) - Medical-grade ABS plastic - Internal screw bosses with M3 screws - Front dispensing nozzle - Rear removable cover for loading dressing roll Internal Mechanism: - Dressing roll diameter: 40 mm - Roll width: 50 mm - Stainless steel shaft diameter: 8 mm - Ratchet wheel with 20 teeth - Spring-loaded pawl mechanism - Compression spring: Length: 25 mm Outer diameter: 12 mm Wire diameter: 1 mm - Thumb-operated lever with 12° rotation - Lever pivot pin diameter: 3 mm Peel Mechanism: - Stainless steel peel bar - Peel angle: 180° - Separate path for silicone backing liner - Dressing exits from front slot - Backing liner exits downward into waste slot Cutting Mechanism: - Integrated serrated cutter blade - Cutter width: 55 mm - Blade positioned directly after dressing exit Motion: Each lever press advances dressing by exactly 5 mm. Ratchet prevents reverse rotation. Compression spring automatically resets the lever. Assembly: Generate individual parts and complete assembly. Include exploded assembly. Generate all components as parametric solids. Maintain manufacturing clearances of 0.3 mm. Include realistic fasteners. No electronics. Mechanical operation only. Output: STEP Parasolid SolidWorks compatible assembly Engineering exploded view Sectional view Bill of Materials
Parameters
| Name | Value | Range |
|---|---|---|
| Layout gap | 20 mm | 10 – 100 |
| Housing length | 90 mm | 60 – 120 |
| Housing width | 60 mm | 40 – 80 |
| Wall thickness | 2.5 mm | 1.5 – 5 |
| Corner radius | 8 mm | 2 – 12 |
| Bottom base height | 28 mm | 15 – 40 |
| Screw boss diameter | 6 mm | 4 – 10 |
| Screw boss hole diameter | 3.2 mm | 2.5 – 5 |
| Screw boss height | 15 mm | 8 – 25 |
| Boss offset from inner wall | 7 mm | 2 – 15 |
| Shaft journal boss diameter | 10 mm | 8 – 16 |
| Shaft journal hole diameter | 8.5 mm | 8 – 12 |
| Pawl boss diameter | 5 mm | 3 – 8 |
| Pawl boss height | 10 mm | 5 – 20 |
| Pawl boss X offset | 20 mm | 10 – 40 |
| Peel bar slot width | 6 mm | 3 – 10 |
| Peel bar slot length | 30 mm | 15 – 55 |
| Peel bar slot height from floor | 2 mm | 0 – 10 |
| Top cover height | 28 mm | 15 – 40 |
| Top cover screw boss diameter | 6 mm | 4 – 10 |
| Top cover screw hole diameter | 3.2 mm | 2.5 – 5 |
| Top cover boss height | 15 mm | 8 – 25 |
| Top cover boss offset | 7 mm | 2 – 15 |
| Thumb lever slot length | 15 mm | 8 – 25 |
| Thumb lever slot width | 5 mm | 3 – 10 |
| Thumb lever slot angle | 12 deg | 5 – 30 |
| Cutter blade window length | 55 mm | 30 – 90 |
| Cutter blade window width | 10 mm | 5 – 20 |
| Cutter blade window Z offset | 5 mm | 2 – 15 |
| Rear cover length | 60 mm | 40 – 90 |
| Rear cover width | 22 mm | 15 – 35 |
| Rear cover thickness | 3 mm | 1.5 – 6 |
| Snap hook length | 10 mm | 5 – 15 |
| Snap hook width | 4 mm | 2 – 8 |
| Snap hook height | 2 mm | 1 – 5 |
| Roll outer diameter | 40 mm | 20 – 60 |
| Roll width | 50 mm | 30 – 70 |
| Roll inner diameter | 10 mm | 8 – 20 |
| Shaft diameter | 8 mm | 5 – 15 |
| Shaft extension each side | 5 mm | 2 – 10 |
| Ratchet outer diameter | 22 mm | 15 – 35 |
| Ratchet thickness | 4 mm | 2 – 8 |
| Number of teeth | 20 | 10 – 30 |
| Bore diameter | 8.6 mm | 8 – 12 |
| Keyway width | 2 mm | 1 – 4 |
| Keyway depth | 1 mm | 0.5 – 3 |
| Pawl length | 15 mm | 8 – 25 |
| Pawl width | 8 mm | 4 – 15 |
| Pawl thickness | 3 mm | 1.5 – 6 |
| Pivot hole diameter | 2 mm | 1 – 4 |
| Tooth width | 3 mm | 1 – 6 |
| Tooth depth | 3 mm | 1 – 6 |
| Spring free length | 25 mm | 10 – 50 |
| Spring outer diameter | 12 mm | 6 – 20 |
| Wire diameter | 1 mm | 0.3 – 2 |
| Coil gap | 0.5 mm | 0.2 – 2 |
| Lever length | 40 mm | 20 – 60 |
| Lever width | 15 mm | 8 – 25 |
| Lever thickness | 8 mm | 3 – 15 |
| Pivot hole diameter | 3.2 mm | 2 – 6 |
| Ratchet finger length | 8 mm | 3 – 15 |
| Ratchet finger width | 4 mm | 2 – 8 |
| Grip groove count | 5 | 0 – 10 |
| Peel bar length | 55 mm | 30 – 70 |
| Peel bar width | 8 mm | 4 – 15 |
| Peel bar thickness | 6 mm | 2 – 12 |
| Peel edge radius | 1 mm | 0.2 – 3 |
| Blade length | 55 mm | 30 – 80 |
| Blade width | 10 mm | 4 – 20 |
| Blade thickness | 0.4 mm | 0.2 – 1 |
| Tooth pitch | 1.5 mm | 0.5 – 4 |
| Tooth depth | 3 mm | 1 – 5 |
| Screw thread diameter | 3 mm | 2 – 6 |
| Screw length | 6 mm | 3 – 15 |
| Screw head diameter | 5.5 mm | 3 – 10 |
| Screw head height | 2 mm | 1 – 4 |
| Number of screws | 4 | 2 – 6 |
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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