Door Ramp - Robot Vacuum - Wheelchair

Modular interior door threshold ramp. 

Designed to print easily, be durable, simple to understand and expandable. 

-Prints without supports

-Three walls & 15% infill is sufficient for strength due to the design. 

-Scale to any size / slope you need (currently 30mm tall, 150mm long)

-Grippy texture for wheelchairs on top or flip it upside-down for grip on carpets. 

I provided a .STEP format for anyone who wants to modify it. 

Updates

10/2/25 Increased tolerances to fit looser due to feedback.