SQB Receiver - Disposable Cup - Plate and Printed Parts Section

This model aims to produce an SQB lower receiver at a low cost. For this purpose, I have designed the SQB receiver structure.

This file contains only the printed parts; the remaining components are more affordable universal parts. These include

8 M3*24mm copper pillars

22 M3*6mm round head bolts; 8mm also fits (stainless steel not recommended)

Of course, the main purpose of structuring it as plates + connectors is that you can obtain relatively inexpensive metal plates through laser cutting (JLCPCB processing costs about 16￥/piece), thereby obtaining a receiver mostly made of metal.

For this purpose, I have uploaded DXF toolpath files and STEP universal files.

Of course, to ensure the adaptability of the plates, I have also uploaded the SW source file. You can modify the corresponding hole sizes in this file to better fit your selector.

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Originally, I wanted it to be a commercial project, but after thinking about it, I decided to open source it. After all, I believe in the great open-source spirit of the internet ╮(╯▽╰)╭, although I'll still sell it.

But this way, it will certainly increase competition. I wonder how many people will take it and sell it on the second-hand market [○･｀Д´･ ○]!

However, since it's open-sourced, there's nothing left but to say:

"What do you mean by gratitude! In the future, if you get into trouble, just don't mention your master, that's all."