renegadecow Posted August 4, 2017 Report Share Posted August 4, 2017 Spur of the moment build for History Con (Aug10-13), our WW2 reenactment group will be doing Bataan so I figured to make a mortar because the machine gun nest is getting old. I'm not sure if we'll even be able to fire it in the script but I'm stuffing a pneumatic cannon inside for when we do airsoft games. Philippine Scouts/Army manning an M1 barrel clamp parts test fit on the main tube figuring out bipod leg dimensions Link to post Share on other sites
harborne blue Posted August 5, 2017 Report Share Posted August 5, 2017 Amazing work as ever! Link to post Share on other sites
renegadecow Posted August 5, 2017 Author Report Share Posted August 5, 2017 Thanks! Got more done today after script rehersal. Should be able to finish the bipod tomorrow and start on the base. Link to post Share on other sites
renegadecow Posted August 9, 2017 Author Report Share Posted August 9, 2017 And it's done! Link to post Share on other sites
Got Wood? Posted August 9, 2017 Report Share Posted August 9, 2017 Damn that's cool Link to post Share on other sites
Kalashnikov_kid Posted August 9, 2017 Report Share Posted August 9, 2017 Damn dude you do not hang about! Nice work Link to post Share on other sites
DarkLite Posted August 9, 2017 Report Share Posted August 9, 2017 What will the live-fire version shoot? Link to post Share on other sites
renegadecow Posted August 9, 2017 Author Report Share Posted August 9, 2017 That is the live fire version though I haven't tried shooting the engine while inside just yet. I'm pretty sure it's gonna be fine but there's always an off chance I get maimed. Air tank and barrel is around 2.5x that of the panzerfaust I made recently. That one does a 300bb payload at around 200fps so I'm guessing this one will be able to do the same with 750bbs. For the History Con event though I'll only be shooting flour. Link to post Share on other sites
DarkLite Posted August 9, 2017 Report Share Posted August 9, 2017 Ah, is it a compressed air tank with a big dump valve kind of deal? You could always make a foam projectile for it Link to post Share on other sites
renegadecow Posted August 9, 2017 Author Report Share Posted August 9, 2017 Yup. Compressed with a bike pump. Hardly practical since it takes forever to reload, but I imagine an external HPA supply or a small tank (bore diameter is 83mm) hidden inside will make it extremely effective in making plastic rain. Link to post Share on other sites
renegadecow Posted August 14, 2017 Author Report Share Posted August 14, 2017 Link to post Share on other sites
DarkLite Posted August 14, 2017 Report Share Posted August 14, 2017 That's some quality soundtrack right there. XD Link to post Share on other sites
Darkmikey22 Posted August 21, 2017 Report Share Posted August 21, 2017 looks the business... love it. Link to post Share on other sites
Corbeau Posted November 15, 2017 Report Share Posted November 15, 2017 I'm incredibly interested to know how you end up effectively getting plastic downrange. A mortar that arcs BBs without needing any sort of shell that would leave debris behind is basically my dream build. Link to post Share on other sites
renegadecow Posted November 15, 2017 Author Report Share Posted November 15, 2017 It's just a glorified potato gun really. Range isn't all that great since I pack the bbs loose. Some wadding helps a bit but the bbs will lose a lot of energy individually vs a solid projectile. I can't launch the bbs in some kind of frangible container either (which will splatter on impact) because the net energy of a solid projectile can be dangerous if they hit an unlucky person. Link to post Share on other sites
mrsevenstars Posted December 15, 2017 Report Share Posted December 15, 2017 My friend made a air powered rocket launcher style potato gun and he had the same concerns as you about the projectile causing injury so he used to use styrofoam cups taped together and cross cut in the front so that the projectile flew for a little while intact and then came opened up in the front mid air. They were 1/3 filled with bbs and cotton or something to take up some space.if i recall. It worked pretty well, maybe that might be an option for you. Link to post Share on other sites
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