Search found 8 matches

by MDSpudderButter
Sun Apr 18, 2021 8:29 am
Forum: Pneumatic Cannons
Topic: Basic pneumatic cannon
Replies: 2
Views: 424

Basic pneumatic cannon

Hi all. It's been quite some time since I've logged on, I like the new site layout! I just realized I only have a thread on my 4L propane cannon and not my pneumatic. Just dug it out of the basement. I will clean it up and work on removing the non pressure rated bell reducer in favor of some bushing...
by MDSpudderButter
Mon Jan 28, 2019 8:03 pm
Forum: Combustion Cannons
Topic: Ignition types
Replies: 5
Views: 2731

Re: Ignition types

https://www.amazon.com/800-1000-Voltage-Inverter-Generator-Ignition/dp/B07C94LKNT/ref=mp_s_a_1_5?ie=UTF8&qid=1548723635&sr=8-5&pi=AC_SX236_SY340_QL65&keywords=high+kv+ignition&dpPl=1&dpID=41ABex3KQSL&ref=plSrch I use one of these in my combustion cannon. I've used both 2(AA) batteries for around 3v ...
by MDSpudderButter
Tue Feb 27, 2018 5:52 pm
Forum: Combustion Cannons
Topic: 4L Propane Inline Cannon
Replies: 10
Views: 3606

Re: 4L Propane Inline Cannon

Believe it or not this was just spuds. I thought the potato would explode instead of splitting the 2 x 4 but it hammered right through. The plywood wire spool acted like a taught piece of paper and they punched right through as well. I have attached a few pictures of the updated electronics with the...
by MDSpudderButter
Thu Feb 22, 2018 4:16 pm
Forum: Combustion Cannons
Topic: 4L Propane Inline Cannon
Replies: 10
Views: 3606

Re: 4L Propane Inline Cannon

Had a day off Tuesday and it was 70 degrees here so it was the perfect day to give the new launcher a shakedown. Attached are some pictures of damage that cannon did from varies ranges. Also embedded is a youtube video of a few shots. Just now learning to use the go pro studio so I apologize if the ...
by MDSpudderButter
Sun Feb 18, 2018 8:08 pm
Forum: Combustion Cannons
Topic: 4L Propane Inline Cannon
Replies: 10
Views: 3606

Re: 4L Propane Inline Cannon

Got to do a little more work on the cannon today. Pictures show the fittings and double beveled pass through barrel. The PVC fittings only took 15 minutes to sand out but the black camlock took over an hour and a half. I also switched the camlock on the chamber to come through a SCH80 close nipple w...
by MDSpudderButter
Sat Feb 17, 2018 4:05 pm
Forum: Combustion Cannons
Topic: 4L Propane Inline Cannon
Replies: 10
Views: 3606

Re: 4L Propane Inline Cannon

Thanks Mark. I figured a linear 7812 would work but was hoping I could just run strait 18V in short bursts. Attached are some more detailed shots of the chamber. I give the cleanliness credit to the new to me Oatey Fusion. I was a little apprehensive about an all in one but the spec sheet was identi...
by MDSpudderButter
Thu Feb 15, 2018 9:06 pm
Forum: Combustion Cannons
Topic: 4L Propane Inline Cannon
Replies: 10
Views: 3606

Re: 4L Propane Inline Cannon

Thanks mark! Appreciate the comments. I have a 1" sprinkler valve pneumatic as well but hated that I was married to the compressor so the portability of propane was a huge draw for me. The heart of the electronics is the 400kV high voltage generator I got for around $9 on amazon. That is powered by ...
by MDSpudderButter
Sat Feb 10, 2018 10:41 pm
Forum: Combustion Cannons
Topic: 4L Propane Inline Cannon
Replies: 10
Views: 3606

4L Propane Inline Cannon

Hello all! New member here but have been lurking for a few years. Just finished up my latest build on a metered propane combustion. Specs are as follows: 4 foot 2" diameter barrel 3,990 mL 40 mL meter pipe 80mm chamber fan 2" quick vent ball valve "400kV" ignition module running at 6V input 9V runni...