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This is a collection of STL files which will let you 3D print your own Mayday Mk2.
The Mayday Mk2 is a break open, 40max shell launcher. To function, you will have to buy shells separately. If you have other airsoft 40mm shells which feature a button in the center of the shell's rear, I believe those should also be compatible (I have not tested this claim, I only have 40max shells).
Pulling the trigger presses the button on the rear of the 40mm shells. Pulling the hammer releases the latch that holds the barrel closed.
To complete this project you will need to following hardware:
2x 20m long, 1.5m diameter metal pins
3mm(~1/8") diameter elastic cord
1x M3x8mm socket head cap screw
4x M3x12mm socket head cap screw
7x M3x20mm socket head cap screw
1x M3x25mm socket head cap screw
If you choose to add brass inserts to your Mayday mk2 then you will also need:
1x M3x12mm brass standoff (threaded hole on both ends)
8x M3 brass heat set insert (M3 5.7mm x 4.6mm)
Please feel free to read the assembly instructions at this link:
https://github.com/Ehdrien/Mayday-Mk2-assembly-instructions
(click the green "code" button and then choose "download ZIP")
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