Bowden Tube End Cut not Square

[billh 0]

I am assembling my Ultimaker kit and the Bowden Tube End Cut is not Square.

The directions stress that it must protrude exactly 8mm but it measures 8 mm on the high side and 7.45 mm on the low side.

If this is truly critical then Ultimaker needs to build a jig that consists of a 6.5 mm diameter tube 100 mm + long mounted in a block with a slit square to the tube so that you can use a utility knife razor blade to achieve a square cut when the tube is forced straight in the tube.

[Daid 306]

The tube needs to make a perfect connection to the peek part. Any gap can cause melted filament to get stuck in the gap, causing blockage. So you better make sure it's square.