Brackets and mounts
PVC Window Sill Anti-Swing Holder (C-Clamp + Post + Swivel + U-Cradle)
- Bounding box
- 1167.6 × 90.0 × 250.0 mm
- Engine
- Precision B-rep
- Parameters
- 35
- Published
- October 28, 2026
Download
Free to download and use. See the terms.
The prompt
Design a 3D-printable holder that prevents an open PVC window from swinging in either direction. Use a padded C-clamp with a thumb screw to attach it to the window sill. Above it, add a U-shaped cradle that supports the bottom sash frame and grips both sides with one fixed jaw and one screw-adjustable jaw. Do not contact the glass. Include adjustable height and a lockable vertical-axis swivel to match the window angle. Use rounded corners, reinforced plastic parts, and standard metal screws. Make sill thickness, sash width, and support height parametric. Create separate solid parts suitable for STEP and STL export.
Parameters
| Name | Value | Range |
|---|---|---|
| Sill Jaw Opening | 45 mm | 20 – 80 |
| Clamp Reach | 130 mm | 90 – 180 |
| Clamp Width | 35 mm | 25 – 50 |
| Jaw Thickness | 20 mm | 12 – 30 |
| Back Column Thickness | 18 mm | 10 – 30 |
| Post Socket Size | 26 mm | 20 – 40 |
| Post Socket Height | 40 mm | 25 – 60 |
| Thumb Screw Dia (M10) | 10 mm | 6 – 14 |
| Thumb Screw Length | 80 mm | 50 – 120 |
| Post Lock Screw Dia (M8) | 8 mm | 5 – 12 |
| Post Lock Screw Length | 30 mm | 20 – 60 |
| Sill Pad Length | 35 mm | 20 – 60 |
| Sill Pad Width | 25 mm | 15 – 50 |
| Sill Pad Thickness | 5 mm | 2 – 12 |
| Post Square Size | 25 mm | 15 – 40 |
| Support Height | 250 mm | 120 – 300 |
| Lock Hole Pitch | 25 mm | 15 – 40 |
| Turret Diameter | 55 mm | 35 – 80 |
| Turret Height | 30 mm | 15 – 50 |
| Swivel Lock Screw Dia (M8) | 8 mm | 5 – 12 |
| Swivel Lock Screw Length | 25 mm | 15 – 50 |
| Sash Frame Width | 70 mm | 40 – 120 |
| Cradle Depth | 90 mm | 60 – 120 |
| Cradle Height | 45 mm | 30 – 70 |
| Cradle Wall Thickness | 20 mm | 12 – 30 |
| Cradle Base Thickness | 12 mm | 8 – 20 |
| Jaw Pad Length | 30 mm | 15 – 50 |
| Jaw Pad Width | 25 mm | 15 – 45 |
| Jaw Pad Thickness | 5 mm | 2 – 12 |
| Adjustable Jaw Width | 35 mm | 20 – 50 |
| Adjustable Jaw Depth | 45 mm | 25 – 60 |
| Adjustable Jaw Height | 35 mm | 20 – 50 |
| Jaw Screw Dia (M8) | 8 mm | 5 – 12 |
| Jaw Screw Length | 80 mm | 50 – 120 |
| Exploded Layout Gap | 60 mm | 20 – 150 |
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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