Serpentine Coil Maker - Small, Manual Version

This is a manual small serpentine coil maker as described in an article by scientists of the Brookhaven National Laboratory, demonstrated and used by Robert Murray-Smith on his YouTube channel, Thinking and Tinkering. A jig designed by Peter Grendel is an initial inspiration for the receiver semi-disks.

This is a fixed version; there is also an extensible version, which is more recent.

This tool is quite complex, requiring many parts, reason for which the assembly is shown and discussion around it is made in an attached document. However, I provide an animation of a step by step assembly  and the tool in action in an animation on my YouTube channel:

For each model, a note gives the quantities needed.

There is a serpentine coil maker for bigger coils in design, which will be published later.

First public version.

This is the second public version where a variant, using a tensionner, is provided; note that for the moment the assembly document and video are not up to date; also, I do not provide, for the moment, .3mf the project files.

Everything was printed using the following:

1. Prusa MK3.9S or XL with a 0.6 nozzle.
2. Prusament transparent PETG
3. Almost everything can be printed at 0.35mm resolution with some exception that can be found int the 3MF files provided.
4. Where supports are needed, the organic kind works very well.
5. Despite my effort to print every component, there are a few headless screws which are welcome; I used M3x6; a minimum of 5 pieces is required.

The model was create using OpenSCAD and using the BOSL2 toolkit. The sources are provided in an archive under the GNU General Public License v3.0