You may not need this tool very often, but when you need to remove the PTFE Bowden tube from the MK8 Creality Hot end, this tool makes it fast and easy to make the perfect cut at the end. I also had a need to cut many small lengths of Bowden tube for a model. So this production tool came in handy, just for that.
Blue or any colour you wish!
I print with a 0.3mm initial layer height, and an initial print speed of 15mm/sec, for good bed adhesion. This is required due to some of these parts being very small. I also use a 3 line skirt to ensure good nozzle priming prior to printing. 5 top layers and 4 bottom layer count, 1.2mm wall at wall count of 3, therefore a line width of .4mm.
PTFE Bowden Tube Cutter to suit most 4.0mm OD Bowden Tube
This design has come about due to the fact that any Bowden tube cut for a Creality CR-10 printer, must be a clean and very square cut at the Hot End of the tube. This came about after a member of the CR-10 FB group post up a mod for the hot end that I really did like. The only thing was that the tube needed to be cut to length and very clean and square. Now Capricorn sell a good cutter but I wanted to use my 3D Printer to design and print my own cutter. So was born this design. It works very good and there is little hardware for assembly, in fact the only thing you need is the standard Stanley knife blade. Just make sure that there are at least two drive notches at the top of the blade. These can be purchased from any hardware store. The pivot pin and handle use the PTFE tube cut to length. I ran a 4.0mm drill through both holes to make sure that the assembly was a square and true, very easy to do. This tool made the above mod very easy to complete and my hot end does not clog any more, now that I have addressed the Bowden against the Nozzle issue, that these MK8 Hot ends have in the Creality printers.