This is straight cutter JIG for any 1.75 PTFE tube. ( O.D.=4mm )
Advantage of this design is that we can always guarantee the tube is perfectly cut at right angle by firmly fixing it and always using the sharp part of the blade.
This is must have tool because the quality of cut is important to prevent clogging of filament in nozzle. Simple and works well.
Improved version of jig (screws removed and knurl added) is included.
STEP files for modification are provided.
To improve accuracy even more, just insert a filament inside the tube while cutting.
( Recommended by Uberjoe )
Remix of this design with gradually adjustable length of tube can find here:
For slicing of model, put it on the long side. ( Not as shown in the pictures ).
No support is needed.