Bonker

Instead of throwing away that paper towel tube, bonk your cat with it instead! This is a handle with a locking collet to make it easier than ever to bonk your cat with your cardboard paper towel tubes! Easy 30 second setup, follow the directions below. Please leave feedback or suggestions for me. My goal is to continue to make this design better.   This is a print in place part with no supports required. Make sure the plate is clean, and use auto brim if needed.  Break the collet free from the handle but simply twisting. Don't twist too hard or too much or the part could get damaged.   Twist the collet clockwise to un-constrain the fingers and allow the tube to easily slide over. The part should be at its full length. This may not be necessary depending on your tube diameter. Twist the collet counterclockwise after sliding on the tube to lock it in place. It may need some extra force to lock securely until the internal threads have been broken in. Boost MeAsk your cat if I can get a boost!