Search found 654 matches

by Biopyro
Wed Aug 31, 2016 9:31 am
Forum: General How-To & Discussion
Topic: Is spudding dead?
Replies: 102
Views: 28345

Re: Is spudding dead?

I tried rifle shooting after I'd done spudding for a few years and really found it lacking a figurative "spark". I think both the personal significance of making your own cannon and the ability to send something downrange with a boom are important. Maybe living in the UK affects how one sees guns, b...
by Biopyro
Thu May 19, 2016 12:50 pm
Forum: General How-To & Discussion
Topic: Free cannons to good home
Replies: 3
Views: 899

Re: Free cannons to good home

Hi Ian, It is, not sure about postage as it is rather long! Probably going to be in the region of £30-40 if I had to guess. Run it through parcelmonkey with a weight of 5kg and see what comes out. I'm in East Surrey but would be in southampton 28th May and could leave it with a friend for collection...
by Biopyro
Fri May 13, 2016 3:11 pm
Forum: General How-To & Discussion
Topic: Free cannons to good home
Replies: 3
Views: 899

Free cannons to good home

It is a sad day but the cost of storage space in the south east of england is rising exponentially but my savings are not, and so I need to go lean on my belongings for a decade or so. I will be keeping my combustion cannon, but I have: A a part-built piston pneumatic: 10bar rated PVC, 50mm x 1m cha...
by Biopyro
Fri May 13, 2016 2:49 pm
Forum: General How-To & Discussion
Topic: Is spudding dead?
Replies: 102
Views: 28345

Re: Is spudding dead?

I think that spudding in general has seen a huge decline. I have no idea at all why that is, but it's just not really a thing any more. Maybe it's the increasing strictness of laws surrounding guns/explosives, or maybe it's a result of nerds doing practical hobbies and moving to computerised ones? I...
by Biopyro
Fri Dec 27, 2013 12:57 pm
Forum: Off-Topic Hobbies
Topic: Bitcoin and cryptocurrency
Replies: 13
Views: 2016

Re: Bitcoin and cryptocurrency

Well, I'm in the black after they crashed and happy to have some millibitcoins handy. Glad I didn't panic sell now too!
by Biopyro
Wed Dec 18, 2013 3:48 pm
Forum: Pneumatic Cannons
Topic: My First Sprinkler Valved Cannon "Airpress's Style"
Replies: 8
Views: 1775

Re: My First Sprinkler Valved Cannon "Airpress's Style"

Looks really nice painted, nice neat construction too.

How much were those big metal fittings though?!
by Biopyro
Wed Dec 18, 2013 3:45 pm
Forum: SpudFiles Discussion
Topic: Impromptu Ghetto Contest, 2013
Replies: 32
Views: 5015

Re: Impromptu Ghetto Contest, 2013

Damn I totally forgot about this.

Jammed a scharder valvle and a piezo igniter into a pringles can. It therefore links to my fuel meter (cheating? :P) and ignites pretty reliably.

A wrap of tape holding the lid more securely makes it give a nice bang when it goes. No barrel planned.
by Biopyro
Sat Dec 07, 2013 5:12 am
Forum: Off-Topic Hobbies
Topic: Bitcoin and cryptocurrency
Replies: 13
Views: 2016

Re: Bitcoin and cryptocurrency

Well they just absolutely bottomed out so if you wanted to get some then now would be a good time to do so!

It's the bubble popping after the chinese government said they could only be traded as a commodity, not as a currency and it's popped bigtime.
by Biopyro
Sat Nov 30, 2013 1:44 pm
Forum: Combustion Cannons
Topic: Tank Pressure
Replies: 4
Views: 696

Re: Tank Pressure

Rated to 15, apparently burst around 18.
by Biopyro
Sat Nov 30, 2013 10:12 am
Forum: Off-Topic Hobbies
Topic: Bitcoin and cryptocurrency
Replies: 13
Views: 2016

Bitcoin and cryptocurrency

Does anyone else follow these? I've been interested in the development of it for a while now but only recently actually got some to use for sending small payments to friends while avoiding paypal. To me the concept is awesome but I am concerned that if I put anything more than a few hundred in then ...
by Biopyro
Sat Nov 30, 2013 7:50 am
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6630
Views: 285335

Re: "Offtopic-posts-topic" NSFW

Anyone think it might be good to have a general discussion forum rather than just a single thread which devolves into multiple streams of consciousness without discussion, when multiple topics are raised simultaneously?
by Biopyro
Fri Nov 29, 2013 3:33 am
Forum: Combustion Cannons
Topic: Tank Pressure
Replies: 4
Views: 696

Re: Tank Pressure

The typical working pressure is about 8 bar. In the event that the tank gets hot it could reach 20 bar (50*C) so I presume they are rated to 20 bar.

A friend who works with butane aerosol cans says they are rated to 15 bar in the UK so the logic follows.
by Biopyro
Wed Nov 27, 2013 9:58 am
Forum: Combustion Cannons
Topic: Converting torch head to threaded fitting
Replies: 16
Views: 2299

Re: Converting torch head to threaded fitting

Yeah I might tap the inside to a female thread but I don't know if there is enough material to do 1/8"

I've just found this: (How-To) Basic Propane Meter which is useful, it suggests that there is a compression fitting which will screw in... decisions.
by Biopyro
Wed Nov 27, 2013 8:52 am
Forum: Combustion Cannons
Topic: Converting torch head to threaded fitting
Replies: 16
Views: 2299

Re: Converting torch head to threaded fitting

Does anyone know what the thread is which screws the aerator(?) onto the torch head?

I destroyed the threadlock and unscrewed the pipe but it's the same thread at both ends, neither NPT or BSP. PArallel thread with OD of 11.05mm
by Biopyro
Tue Nov 26, 2013 6:46 pm
Forum: Combustion Cannons
Topic: Converting torch head to threaded fitting
Replies: 16
Views: 2299

Re: Converting torch head to threaded fitting

You could just use a couple of right-angle barbs. As you said, the problem with the original setup is the large radius you need to get the hose bend without kinking. Replace all that hose with right angle barbs (or right angle fittings) and short straight pieces of hose. There must be some good rea...