Universal tube cutter for 3,4,5,6 and 8 mm tubing (PTFE, PUR)

cults3d

This pipe cutter is based on the idea of https://www.thingiverse.com/thing:4275803, where the author used a Wilkinson Sword Classic Razor Blade (0.1 mm thick). However, he himself was not happy with the quality of the cuts - "...But the cuts are not as straight as I hoped they would be...". I used the idea, but replaced the models of both parts completely with my own, to use a standard 9mm wide blade for a 0.4mm thick office knife. The blade has to be broken into 2 equal parts (by the 4th notch on the side of the hole), in the pipe cutter you can use either of these halves. When assembling the half of the blade is inserted into the tray of one of the parts of the pipe cutter 0,4 mm deep and the pivot axis and fixing element of the 2 parts is the screw with the countersunk head M4x16 and the nut M4. The summary: The tube cutter works, for a fast cutting of PUR tubes of different diameters (pneumatic connection between fittings in press moulds for example) is useful, compact, convenient, but I have not got the qualitative cutting (perpendicularity of the cutting plane to the tube axis) too. So I continued to experiment with other variants of the design, which I posted here https://cults3d.com/en/3d-model/tool/rezak-dlya-trubki-ptfe-diametrom-4-i-6-mm