Coilgun Coil Bobbin - Chamber 1

Create a 3D printable CAD model of a cylindrical propulsion chamber (Chamber 1) for an electromagnetic coilgun, shaped like a spool or bobbin. Specifications: - Total length: 90 mm (9 cm). - Inner diameter (bore): exactly 12 mm straight through, designed to allow a 10 mm diameter hex key (Allen wrench) to slide smoothly with minimal friction. - Spool design (Bobbin flanges): The central 50 mm (5 cm) section must be dedicated to the wire coil, flanked and delimited on both ends by two circular retaining flanges (disks/walls) similar to a thread spool, to keep the wire neatly contained within the 50 mm space. - Outer diameter of the spool core (between flanges): Approximately 13 mm, keeping the wall thickness very thin (0.5 mm to 1 mm) to maximize magnetic field coupling with the inner core. - Mechanical stopper: At the end of the 50 mm coil section (inside the bore), include an internal physical stop or lip designed to halt the 10 mm Allen wrench at the center of the coil, preventing it from passing through. - Connection joint: Design the front end of the 90 mm cylinder with a socket or peg fitting to securely snap or attach into a 40 mm ping-pong ball holding chamber.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.