Tube cutter hand tool trapezoid blade

this tool cuts tubes from 3 to 8 mm

clamp the blade with two M4 screws and the small cap or one single M3 screw (both are self tapping)

the V2 includes the added case, that has a nose and the opposite notch in the cutter that just will help to keep the case on the cutter. I made the angle into the case that it won't slide easily off, but when I gonna shake it, it will slide. The notch should prevent that.
No other difference between both v1 and v2

If you like a completely closed case you just have to comment the last line within the difference(){ } that contains the roundedcube (after the 3 hull() )

Update 2018-04-07
Noticed that if you keep it in the case for a few days it could deform slightly so it opens not the full width as it was direct out of the printer.
Made from PLA, maybe other material have more strength in it or you need to print it with 3 or more perimeters.
It didn't get warm to get weak, it just was laying around.