replacement knob(for connection point of a cut cylinder)

This is a knob for a connection of a cut circle/cylinder. It has grips, thick walls and reinforcements so it'll be strong. 0.2 millimeter tolerance.

The sizes are modeled after the real thing but I made some adjustments to reinforce some parts.

It was quite a tight fit but it worked fine and my printer settings aren't the best so it'll probably be fine for you.

No supports or anything extra needed but if you're struggling with stringing the try turning on “Avoid crossing perimeters” in Printer Settings/Layers and perimeters/Quality if you are using PrusaSlicer, or just find your slicer's equivalent.

Before and after(from Prusa's official website)

Dimensions: 

Outer dimensions:

Outer diameter: 40mm(41 if you add the grips)

Inner diameter: 36mm

Thickness: 4mm

Connection point dimensions:

Outer diameter: 9.2mm

Inner diameter: 6.2mm

Thickness: 3mm

Heights:

Connection piece height: 24mm

Handle height: 17mm

Bottom height: 7mm(there was an elevated bottom piece rather than just a thin floor so I also added one)

Reinforcements:

I can't see the measurements in the sketch but I know its 1 mm thick and plenty strong