Search found 82 matches

by Xamllew
Mon Feb 24, 2020 7:31 pm
Forum: Miniature Guns
Topic: Spring Air Mini
Replies: 9
Views: 1560

Re: Spring Air Mini

The original post was probably made when you were a child.
by Xamllew
Sat Feb 22, 2020 12:12 am
Forum: Miniature Guns
Topic: Alcohol-Fueled Marble Guns
Replies: 3
Views: 2670

Re: Alcohol-Fueled Marble Guns

I had thought about building one with a fiberglass cast stock that doubles as the combustion chamber.

It seems that you can get hundreds of shots from a small spritzer of alcohol. I'm curious how long you have before the alcohol vapor begins to condense in the chamber and wont combust.
by Xamllew
Wed Feb 19, 2020 12:01 am
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6603
Views: 234769

Re: "Offtopic-posts-topic" NSFW

Taint-seeking sabot rounds.
by Xamllew
Sat Feb 15, 2020 7:17 pm
Forum: Ammo & Parts
Topic: Low-friction/Specialty Ball Valves?
Replies: 11
Views: 491

Re: Low-friction/Specialty Ball Valves?

You can try to lubricate the compressed air, and not the valve. While the lubricant added to the ball valve is not constant, at first it is a lot and then it disappears, the lubricated air is constant, and your valve will always have moderate lubrication. I have not tried but it is not much work to...
by Xamllew
Fri Feb 14, 2020 7:01 pm
Forum: Ammo & Parts
Topic: Low-friction/Specialty Ball Valves?
Replies: 11
Views: 491

Re: Low-friction/Specialty Ball Valves?

I've noticed that variability also. I wonder what that is? Deformation of the seal that creates a detente? Temperature? I play with the valves at the building center and notice that new ones are often very stiff. My 3/4" ball valve gun had a heavy hammer driven by bungees that easily overcame openi...
by Xamllew
Fri Feb 14, 2020 2:49 am
Forum: Ammo & Parts
Topic: Low-friction/Specialty Ball Valves?
Replies: 11
Views: 491

Re: Low-friction/Specialty Ball Valves?

What size? Also, I don't think low friction would increase performance much. What are your requirements for the cannon? Ammunition, barrel size, construction material etc. I'm looking for a replacement valve for my ball-valve musket. It's a 3/8" full port, standard plumbing valve with a modified tu...
by Xamllew
Wed Feb 12, 2020 12:20 pm
Forum: Ammo & Parts
Topic: Airsoft/ 1/4 ball bearings
Replies: 4
Views: 1597

Re: Airsoft/ 1/4 ball bearings

I'm currently on the hunt for a good barrel for the 1/4" slingshot ball bearings. I'm looking for air tight interference fit. Assuming your bearings are really 1/4", you can make your own using a 1/4" reamer and maybe a 6mm. Start with some 6mm ID thick wall tubing, if it's the welded crap with a s...
by Xamllew
Wed Feb 12, 2020 12:10 pm
Forum: Ammo & Parts
Topic: Ideas for biodegradable cannon-balls
Replies: 9
Views: 974

Re: Ideas for biodegradable cannon-balls

mrfoo wrote:
Wed Feb 12, 2020 11:04 am
Surely used cat litter comes with inbuilt "clumps" :)
Highly effective. ;)
by Xamllew
Tue Feb 11, 2020 9:15 pm
Forum: Ammo & Parts
Topic: Ideas for biodegradable cannon-balls
Replies: 9
Views: 974

Re: Ideas for biodegradable cannon-balls

It sounds kinda weird but slingers (who use slings) make very cheap projectiles from clumping cat litter, just be sure to use clean litter.
by Xamllew
Tue Feb 11, 2020 9:08 pm
Forum: Ammo & Parts
Topic: Low-friction/Specialty Ball Valves?
Replies: 11
Views: 491

Low-friction/Specialty Ball Valves?

Just curious if any of you spudders have run across any ball valves that are in some aspect better for pneumatic spudguns than your typical hardware store plumbing ball valve. I'm looking for a full-port ball valve that requires very low effort to turn, at least 600psi max pressure. If anyone has ru...
by Xamllew
Tue Feb 11, 2020 8:51 pm
Forum: Ammo & Parts
Topic: Airsoft/ 1/4 ball bearings
Replies: 4
Views: 1597

Re: Airsoft/ 1/4 ball bearings

6mm airsoft BBs and 1/4 ball bearings fit nicely inside of a 5/16 metal brake line. With the ball bearings use a magnet to hold them in place. Airsoft pellets average about 5.95-6.03mm and store bought 1/4" ball bearings are 6.35mm, so theres a bit of a size difference. Assuming the brake line is n...
by Xamllew
Tue Sep 03, 2019 11:50 am
Forum: Pneumatic Cannons
Topic: 150 bar 15mm caliber piston valve beast
Replies: 3
Views: 1126

Re: 150 bar 15mm caliber piston valve beast

Holy crap, 1050 fps with 15mm bearings? You've got energy comparable to modern mid-caliber handguns.
by Xamllew
Tue May 14, 2019 11:52 am
Forum: General How-To & Discussion
Topic: "In the world of spuds today"
Replies: 2403
Views: 126043

Re: "In the world of spuds today"

Have you tried McMaster Carr? They have bearings and balls of just about every material you can imagine.
by Xamllew
Sat Jan 19, 2019 12:51 am
Forum: Pneumatic Cannons
Topic: Spring-Loaded Ball Valve patent from 1880
Replies: 4
Views: 739

Re: Spring-Loaded Ball Valve patent from 1880

Oh that is cool, reminds me of some of the early Daisy pellet guns. Wonder how it's performance would have compared to other butt-reservoir Victorian airguns, it appears to be a dump valve so probably one decent shot then 10 minutes of pumping.
by Xamllew
Sat Jan 19, 2019 12:34 am
Forum: General How-To & Discussion
Topic: "In the world of spuds today"
Replies: 2403
Views: 126043

Re: "In the world of spuds today"

Thanks guys. Here is the build thread
http://www.spudfiles.com/pneumatic-cann ... 26553.html