These are alternative parts for helmet lock.
Change the suffix of "Assembly Manual-Helmet Lock" from ".doc" to ".pdf" to get more information.
Download the Helmet Lock at:
https://www.myminifactory.com/object/3d-print-215419
https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/helmet-lock
Also, you can see "How I designed this" to get a brief.
| Assembly_Manual-Helmet_Lock.doc | 40.5MB | |
| S7-Ø16.5.stl | 453.0KB | |
| S7-Ø23.stl | 531.9KB | |
| S8-Ø16.5.stl | 548.5KB | |
| S8-Ø23.stl | 583.4KB |
