Search found 747 matches

by mobile chernobyl
Thu Dec 03, 2020 7:01 pm
Forum: Ammo & Parts
Topic: Look what I found!
Replies: 2
Views: 258

Re: Look what I found!

I'd be interested to know what their design operating pressure is. I don't see mentions on their site or their literature except for the spark plug and electrical feed through - which say 500 psig. Not saying they wouldn't work as often there is a safety factor in play but it might be worth asking t...
by mobile chernobyl
Thu Jul 16, 2020 5:41 pm
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6630
Views: 335053

Re: "Offtopic-posts-topic" NSFW

I need to get back to building. :/ I've had AR parts lying around since last fall but I finally got around to getting a lower a month ago and have been building that instead of the cannon I need to be finishing. IMG_0682.JPG I don't know about you but no amount of fancy ARs or AKs, custom built or ...
by mobile chernobyl
Mon Jul 13, 2020 7:45 pm
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6630
Views: 335053

Re: "Offtopic-posts-topic" NSFW

Welcome back, Gunfreak. NOW BUILD SOMETHING! :D I might design a large bore soup can launching monster. I think my next cannon should have enough recoil to just about put me on my ass. It's called for. Did you forget about ME? https://vimeo.com/263675436 Oh man, this post brings back memories of my...
by mobile chernobyl
Wed Oct 02, 2019 3:24 pm
Forum: Hybrid Cannons
Topic: Destruction video
Replies: 8
Views: 3352

Re: Destruction video

Needs Moar slowmo! Come on - it's 2019 - Everyone has a slowmo camera in their pocket now!

That cannon looks so badass btw - great job!
by mobile chernobyl
Thu Jun 20, 2019 11:12 am
Forum: Pneumatic Cannons
Topic: Acetylene
Replies: 25
Views: 4720

Re: Acetylene

so they are a thing :shock: [youtube]https://youtu.be/Qp2qGFmz5ZE[/youtube] I don't like this at all. These guys have beautiful cannons and they appear to know what they are doing. I thought we were special. I thought I was special. Seeing those guys with those beautiful cannons feels like I just s...
by mobile chernobyl
Tue Mar 19, 2019 2:36 pm
Forum: Hybrid Cannons
Topic: Hybrids as drilling equipment
Replies: 18
Views: 4221

Re: Hybrids as drilling equipment

A hybrid projectile launcher is essentially an internal combustion engine with a single piston that buggers off, it's not like we came up with the idea ;) ..... This same company is also doing cooler projects vs. just pounding rock... https://www.teslarati.com/hypersciences-geothermal-energy-space/...
by mobile chernobyl
Wed Jul 18, 2018 10:07 pm
Forum: Pneumatic Cannons
Topic: Golf ball distance records?
Replies: 11
Views: 1712

Re: Golf ball distance records?

North of 1500 fps is the fastest I've gotten a golf ball up to - I imagine it would travel about as far as it could with a mean hook or slice at that point. I've never tested it back east but now that I'm a home owner I hope to get back into this sport and launch some golf balls in the deserts of we...
by mobile chernobyl
Wed Jul 11, 2018 5:44 pm
Forum: Hybrid Cannons
Topic: Autonomous hybrid caliber .25 Prototype 2
Replies: 17
Views: 3359

Re: Autonomous hybrid caliber .25 Prototype 2

jackssmirkingrevenge wrote:... It's a shame this forum is not as active as it used to be because a self-contained hybrid was a bit of a holy grail for many members.
...
I'm still watching the forum from time to time haha

Image
by mobile chernobyl
Sun Nov 12, 2017 10:52 pm
Forum: Hybrid Cannons
Topic: large burst disk hybrid build(Update September 2017)
Replies: 62
Views: 9797

Re: large burst disk hybrid build(Update September 2017)

... My second is the chamber seemed quite warm, maybe even more so than after the first shot. Even though heating would of occurred from compression of the added air I'd think that would have been counteracted by the venting of the chamber after the failed attempt to fire. So possibly had incomplet...
by mobile chernobyl
Fri Aug 18, 2017 9:03 pm
Forum: Hybrid Cannons
Topic: Piston Hybrid Questions, O Ring/Design
Replies: 2
Views: 1143

Re: Piston Hybrid Questions, O Ring/Design

I'd take a look at a good ol silicone o-ring for starters (Silicone Rubber -> High-Temperature Silicone Rubber O-Rings) https://www.mcmaster.com/#o-rings/=190271j Something in the 1/8" width like this guy would be good - you'll obviously need to size based on your application though https://www.mcma...
by mobile chernobyl
Thu Mar 23, 2017 1:09 pm
Forum: General How-To & Discussion
Topic: Is Sch10 Stainless Steel DDT safe?
Replies: 10
Views: 2031

Re: Is Sch10 Stainless Steel DDT safe?

Yeah, I want the gun to be as mobile as possible, cam couplings and all. I just realized I would always need to have an air compressor nearby, is it possible to hook up a bike pump to the meter and pump through there? I want all the recharging/loading systems on the gun. I'm not going to drag an ai...
by mobile chernobyl
Wed Mar 22, 2017 11:01 pm
Forum: General How-To & Discussion
Topic: Is Sch10 Stainless Steel DDT safe?
Replies: 10
Views: 2031

Re: Is Sch10 Stainless Steel DDT safe?

Interestingly enough - that gun initially started out as 'something I want to hold' - it quickly turned into not that haha.

Glad you enjoy the videos - Hopefully I can get back into making them in the future (aka shooting REAL spud guns, and not just boring cartridge fed AR's and AK's lol).
by mobile chernobyl
Wed Mar 22, 2017 6:02 pm
Forum: General How-To & Discussion
Topic: Is Sch10 Stainless Steel DDT safe?
Replies: 10
Views: 2031

Re: Is Sch10 Stainless Steel DDT safe?

Here is a link to my Sch. 10, 304 SS chamber and barrrel hybrid that I made a few years back: http://www.spudfiles.com/hybrid-cannon-database/topic23523.html I have had it fail to rupture the burst disc with a 10x mixture once - it was kind of interesting - a "ping" sound and nothing. Kind of scary ...
by mobile chernobyl
Mon Dec 19, 2016 5:24 pm
Forum: Combustion Cannons
Topic: Noise cannon for RC planes
Replies: 162
Views: 24560

Re: Noise cannon for RC planes

I was going to mention the ESP8266 - wasn't sure on your level of comfort with dealing with them as they can require FTDI programming setups and whatnot - which can be a pain if your not used to the pinout. Look at the ESP32 as well - much more powerful then the 8266, has bluetooth and better wifi s...
by mobile chernobyl
Mon Dec 19, 2016 10:53 am
Forum: Combustion Cannons
Topic: Noise cannon for RC planes
Replies: 162
Views: 24560

Re: Noise cannon for RC planes

Amazing! I love logging on here to see new posts on this project haha - made me log in to leave this comment! Regarding frequency - any way you could possibly have two guns using one propane cylinder to save on weight - then fire them out of sync slightly using a micro controller to control the firi...