Mouth Stick Stylus

I designed this mouthstick for my quadriplegic friend when hers wore out and the source that she was getting them from disappeared.

There are 3 purchased parts:

1. carbon fiber tube 4mm inside diameter, 6 mm outside diameter. Cut to preferred length https://a.co/d/dVL762c
2. M4x6x6mm female threaded insert
3. Stylus Tip, available in gold or silver color https://www.pennstateind.com/store/PKTSTXCHBK.html

There are 2 printed parts:

1. Mouthpiece, may work fine for you with PETG or PLA, I printed using Polymaker tough PC for maximum rigidity. I designed it to be printed flat with no supports, then heated with boiling water and manipulated to form the angle.
2. Stylus adapter, Must be printed using conductive filament such as: https://a.co/d/afSfhlx in order to maintain the conductive path for the stylus tip to work on capacitive touch screens (like IPhone). Before trying the conductive filament, I also had success with a version of this part using PETG but I had to design a small passage and install a wire to conduct charge from the carbon tube to the stylus tip. Printed insert end down with supports. You must heat the insert with a soldering iron to sink it in the hole.

Have gone back and forth with testing and design improvements, and it is working pretty well now. Thinking of trying a version with adjustable length, or one with attachments for other items. Would love to have someone try this out and offer feedback or improvement ideas! thanks!