This is a square or rectangle pipe cap. It can handle various pipe side. This is the generic version of the "CUSTOMIZABLE SQUARE PIPE CAP (FUSION360)" (thing:4804652) I made earlier.
Customization is done by changing the parameters of fusion360 file (.f3d).

I designed some pipe caps.
-Customizable pipe cap https://www.thingiverse.com/thing:4795549
-Customizable Pipe Cap "Cover type" https://www.thingiverse.com/thing:5150957
-Customizable Rectangle Pipe Cap https://www.thingiverse.com/thing:4875215 ..this thing
-Customizable Rectangle Pipe Cap "Cover type" https://www.thingiverse.com/thing:5153134

I would like to thank "nosferatu74" for giving me the opportunity to design this.

[Features]
-Customizable
-Fixed firmly
-Hard to break even if squeezed strongly with a wrench
-Easy to remove from the pipe
-Easy to print(no support)

[Design point]
Designed so that when the bolt is tightened, the bolt is parallel to the pipe. This enabled stable tightening.

[Bolt/Nut type to use]
type: CAP bolt and Nut M3 - M6
bolt length: The recommended bolt length is approximately the diagonal length of the pipe.
It may be okay if it is a little shorter.

[Customizable parameters]
-pipe inner short side (min:8mm at M3, max: no limit)
-pipe inner long side
-Flange short side (normally same as pipe outer short side)
-Flange long side(normally same as pipe outer long side)
-Flange thickness
-Flange chamfer
-screw size (M3, M4 ,M5, M6)
Detailed screw dimensions are set automatically.
Screws larger than M6 are also possible by manually setting the screw related parameters. (set "bolt_d", "bolt_hd", "nut_w", "nut_h". You need not change "ss")

[caution]
Since the input value of the parameter is not verified in the fusion360, an error may occur. For example if you use a too large bolt for a small inner side pipe, it may break.
If an error occurs, click the OK button in the parameter change window, and then click the undo button to return. This is because even if you try to change the parameters without undo to eliminate errors, the abnormal state may be maintained.

[note]
I would be grateful if you could report the result of use with the information of the side of the pipe and screw size.

[revision]

Prusa

I3 MK3S

Doesn't Matter

No

0.2mm

20%