Parametric Door(threshold) Ramps - for robot vacuums

This is a parametric ramp for a robot vacuum.

I reconstructed the design based on Richard Butler-Malone’s design using Fusion’s parametric model.

For an 800 mm threshold and 50mm depth(10.2°, 18% incline) version, you need the following parts:

• Left fixed parts: 50 mm(same as preconfigured depth) + 80 mm 
• Configurable middle part: (180 mm × 3) + 80 mm
• Right fixed part: 50 mm(same as preconfigured depth)

For an 800 mm threshold and 60mm depth(8.5°, 15% incline) version, you need the following parts:

• Left fixed parts: 60 mm(same as preconfigured depth) + 80 mm
• Configurable middle part: (180 mm × 3) + 60 mm
• Right fixed part: 60 mm(same as preconfigured depth)

Note:

• The left and right end parts have a fixed width equal to their depth.
• The left-1 part has a fixed 80 mm width.
• Only the middle part’s width can be adjusted.

All parts share fully configurable height and depth, which are applied uniformly.

The uploaded vanilla model stl/step file covers a threshold with a height of 9 mm and a width of 800 mm. In addition, the files in the Chamfered_VHB folder include modifications for cases with silicone for threshold fixation; in these files, the bottom part of the ramp (which contacts the threshold) is recessed by 1.6 mm for better fit and features a 0.3 mm slot for 30 mm wide double-sided tape.

For the remaining configurations, please download the f3d file and modify the parameters accordingly.

This is my first parametric model. I have not thoroughly tested all scenarios, so there may be many issues (with a very high probability, I guess). If you encounter any problems, please do not hesitate to leave a comment.