
Rubber Band Gun OGG P201 Ai-Oh, Wood, 10 rounds - Revamped for 3D Print
thingiverse
These are the STL files for a 3D Printed Rubber Band Gun, originally designed by OGG Craft in wood and with free plans online. I've taken the plans and redrawn them in CAD to convert to STL files for 3D printing. The original design called for a lot of wood pieces and gluing of sub-assemblies. However, for 3D printing, I've condensed all parts into single pieces to make assembly easy and precise. I gave it a nice facelift, rounding the edges of the right and left handle, as the original design was pretty rectangular with sharp square edges. I changed the rectangular basic handle for a more tapered and robust one, added some aesthetical details, and included additional 3mm OD perforations for a bolt-on assembly. You can use M3 screws or pins at 100% scale or M2 screws or pins at 50% scale. The mechanical ratcheted system by OGG was left intact with the exception of tweaking the sliding ratcheted cam design to be more precise and fluid on the 3D printed parts. The trigger was designed in two parts that interlock, requiring no glue since they ride inside the gun channel of the center piece, and the trigger assembly is kept in place by the right and left handles. I've laid out the STL files as follows: Right Handle.stl, Left Handle.stl, and Guts.stl. The guts contain all parts that go between the R/L handle. All pieces were designed to have a flat side and are laid out on the flat side to avoid undercuts that require supports for a clean print and fit. Although much of the sub-assemblies have been simplified as single pieces, the assembly is still pretty straightforward if you follow the diagrams provided by OGG Craft at this link: http://oggcraft.jp/eng/eng_howto_aioh_1.html. If you have questions about the build, I'd be happy to help you.
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