All CAD files related to the A4T toolhead are derivative works of the original design from Armchair Heavy Industries and are shared under the Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) license. All copyright remains with the original creators. Any commercial use should be directed to them, as this work is based on their original design.
| Item | Quantity | Description / Notes |
|---|---|---|
| X-Acto #11 blade | 1 | Standard hobby knife blade |
| Ballpen spring | 1 | Salvaged from a pen or junk drawer |
| M2 heatsert | 1 | 4mm length, 3.5mm OD insert |
| M2 flanged heatsert | 1 | AliExpress link |
| M3 heatsert (alternative) | 1 | 5mm OD, 4mm length – OR use additional M2 flanged heatsert (same as above) |
| M3 x 14mm rod | 1 | Metal rod, 3mm diameter, 14mm length |