sekiryu Posted August 14, 2007 Report Share Posted August 14, 2007 I'm thinking about making a Carl-Gustav launcher for airsoft, using M203 shells. Now, the main tube can easily be PVC pipe, and the grips I can easily carve out of wood. Now, the trouble points: 1. How do I make the details? I've got a fiberglass auto repair kit laying around, but I don't know how to make molds. 2. How do I make the cone-shaped breach? 3. What's the best trigger mechanism? I was thinking just getting a metal rod, having it bent into an L at the front, and poking out the bottom behind the foreward grip, having it in a J shape at the back to press the valve on the 203 shell, and simply pushing that rod forward to launch. The details I need to work on: If I could replicate that tube, that could be the location of my trigger mechanism, instead of having it behind the foreward grip. That part I'm completely stumped on. Link to post Share on other sites
Donut Posted August 14, 2007 Report Share Posted August 14, 2007 Well, when I go about modding. I usually don't plan to create things totally from scratch, I look through my junk box or around the house, or sometimes to a hardware/$1 store. And see if I can find something reasonably close that I can mod into. So you might want to check what you have or what you can get first. Only when I need to I make things from scratch, which is actually pretty often... but there are times when a quick 10min search saved me about hours of tedious work That's just my 2 cents Link to post Share on other sites
sekiryu Posted August 18, 2007 Author Report Share Posted August 18, 2007 No luck so far. I've got my PVC, and some clamps to attach the grips, but I'm still having trouble figuring out the breach locking mechanism. What is all this plasticard I hear about? I've been to my local hobby stores numerous times, but never seen the stuff. Link to post Share on other sites
sekiryu Posted August 18, 2007 Author Report Share Posted August 18, 2007 OK, does anyone know if resin will eat away styrofoam? Link to post Share on other sites
ninja master of coffee Posted August 24, 2007 Report Share Posted August 24, 2007 How do you propose to make the conical blast shield? I ask cos I'm vaguely thinking of making an airsoft (or just mock-up) RPG 16 and I'm kinda stumped on that bit. Frayed I can't help you with the breech lock, does seem pretty hard to replicate. Link to post Share on other sites
zbear Posted August 24, 2007 Report Share Posted August 24, 2007 For either conical piece I would go to an auto parts store and look at the funnels used for oil and fluid changes. Usually they are long and should have a taper that would be close enough Link to post Share on other sites
ninja master of coffee Posted August 24, 2007 Report Share Posted August 24, 2007 Good idea, will have a look at some point. My only concern there is that I'm thinking of using plastics (easier to work and glue) rather than metal and I'd guess the funnels you are referring to are made of metal (oil tends to destroy plastics if I recall correctly). Link to post Share on other sites
zbear Posted August 24, 2007 Report Share Posted August 24, 2007 I have seen both plastic/nylon and metal. Hardware stores might have them as well Link to post Share on other sites
ninja master of coffee Posted August 24, 2007 Report Share Posted August 24, 2007 Cheers, I'll look into it. Sorry about the mild thread hijacking! Link to post Share on other sites
sekiryu Posted August 24, 2007 Author Report Share Posted August 24, 2007 I got a styrofoam cone from Hobby Lobby. But since the liquid hardener for my fiberglass resin kit dissolves styrofoam, I wrapped it in duct tape. So I'll apply fiberglass over that, then gauge out the styrofoam innards, leaving a cone. Link to post Share on other sites
ninja master of coffee Posted August 24, 2007 Report Share Posted August 24, 2007 Tell me how that goes. One day I'll actually have to make good on my threat to make an airsoft RPG... Link to post Share on other sites
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