Tube cutter guide for werner_rh cheap drybox

I made a few dry boxes from werner_rh design https://www.printables.com/model/634289-filament-dry-box-cheap-and-simple and this model is a little helper/aid for making tubes for dry boxes easily and precisely. 

Its a super simple shape to hold 10 mm aluminum tube as proposed in the original concept and help to cut it to 81 mm length. 

Created in Tinkercard - original file is here https://www.tinkercad.com/things/fOdGJEqbG62-wernerrh-drybox-tube-cutter-helper  if you would like to adjust it somehow.

The concept is simple - little lower cutout is for clamp to hold the tube, second clamp additionally holds the whole guide. I have cut about 10 of tubes with mine 1 of 1 first edition printed in transparent PLA without problems - my experience is, that the best way is to rotate the tube 3-4 times and not to cut directly to the bottom.

The original set of files from werner_rh does not contain any guide/helper for cutting the tubes to size, so this is an addition to his nice design.