Having been trough some nasty experiences as my FabLab’s Laser Cutter went lens-berserk, I have to assume some of you will too, have some difficulties, as I do not know in advance HOW will you cut the pieces, be it Laser, Plasma, or a Hacksaw!
So here’s what you need to know about how to make it fire 6 shots, one shot at a time, and no mistake!
Here’s the Pistol’s important components, it’s in essence an escape mechanism, (11S, 09 ), with a semi-auto trigger assembly (05, 07), and a disengaging piece, for the trigger group, 03.
A close-up set of 3 steps illustrates how it works:
Let’s imagine the pistol loaded with only 2 rubber bands, for clarity, and ready to shoot:
Pulling the trigger, 05, will make 07 pull 11S, making 11S rotate and releease one tooth of the wheel, 09, out of 11S’s upper part, but it’s lower part retains the wheel from freely spinning:
The wheel forces the lower part of the escapement piece 11S to rotate, which frees the wheel’s tooth, releasing the rubber band;
Note that the release piece’s point, left, triggers piece 07 to disengage from 11S, and the rubber band between the 2 pieces, 11S and 07, not shown, forces the escapement piece down, and the trigger group back:
But the upper part of the escapement piece 11S will stop any further rotation at a point where it’s ready to shoot another rubber band:
Therefore, it is CRUCIAL that the escapement piece 11S, at it’s lower part, is so cut that it will allow only ONE tooth at a time, while still allowing for the wheel to freely spin, when the upper part’s stopping the next tooth to spin.
That, my friends, is the secret of a one-shot-only per trigger pull Rubber Band Gun…
You can buy the files to cut this gun on your own at
http://www.woodmarvels.com/elastic-band-gun.html
Ta-da! Works like a charm.
Just saw that Bacon-flavored Lollypop, and that comes from here: 
Recent Comments