My goal was to engineer the ultimate fidget pen. To achieve this, I drew inspiration from the intricate dual-threaded diamond screws, renowned for their mesmerizing, counter-rotating motion. I then meticulously integrated this captivating mechanism into a reliable writing tool

Simply insert a bic ink infill and your good to go

To ensure smooth operation 0.12 Layer hight is required

Supports are needed and are turned on in the profile

Print in PLA, I haven't been to successful with PETG