General Cannon Discussion

New Topic

4846 topics

Page 36 of 194
- Jump to page:
Previous
1
…
34
35
36
37
38
…
194
Next

Announcements

SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
1

2
First post

I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

651124 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sketchup Model Library

Last post by mrfoo
Replies: 152
by dewey-1 » Tue Mar 24, 2009 12:12 pm
1

…

7

8

9

10

11
First post

Over the last year I have made a lot of CAD drawings for
Pneumatic Launchers.

I have imported several of them into Sketchup format.
Here is the link...

Last post

Bollocks. Dewey put them out in the hope that, and I quote

some of you can make use of these!

There's absolutely nothing wrong with using them,...
152 Replies

384541 Views

Last post by mrfoo
Mon May 20, 2024 11:17 am
Solvent Welding Course Recommended For ALL

Last post by Technician1002
Replies: 46
by sgort87 » Fri Aug 04, 2006 8:18 pm
1

2

3

4
First post

Originally posted by DR on the Spudtech forums:

IPEX Solvent Cements ONLINE Course can be found here:

It is recommended that you download and...

Last post

Your earlier post about just scoring the surface, has me wondering if that is why OATEY makes a brush tool that scores the inside of a fitting, and...
46 Replies

200375 Views

Last post by Technician1002
Thu Dec 02, 2010 5:04 pm

Topics

railgun bullet energy vs. damage (bullet resistant plastic)

Last post by DYI
Replies: 11
by rp181 » Tue Feb 23, 2010 10:51 pm

First post

First read this post on my website:

Any ideas? That damage seems way too severe for a recorded 850fps on a 8.11g projectile (around 200 joules...

Last post

This is closer to 300J than to 300J, and for a solid aluminum slug I don't believe it is unreasonably severe target damage.

Try shooting into a...

11 Replies

7483 Views

Last post by DYI
Wed Feb 24, 2010 6:13 pm
Golfball Gun Target/Backstop

Last post by clemsonguy1125
Replies: 8
by clemsonguy1125 » Sat Feb 20, 2010 6:23 pm

First post

Well this is my new target I made to shoot my golfball gun at. Its made from a printer box and stuffed with coke cans,newspaper, styrofoam, water...

Last post

Off topic.... My HP $50 scanner broke the other day, i called tech support today....sunday.... and they sent me a gift certificate worth $90

Woo...

8 Replies

2950 Views

Last post by clemsonguy1125
Mon Feb 22, 2010 4:01 pm
sand filled backstop

Last post by john bunsenburner
Replies: 10
by c11man » Mon Feb 15, 2010 10:35 pm

First post

for my new cannon (unposted and a sneek peek below) i am going to make a backstop so i dont always loose my bearings when i fully penetrate the...

Last post

A heavy cloth, with one loose side should do the tricky really...

10 Replies

3923 Views

Last post by john bunsenburner
Sun Feb 21, 2010 3:19 pm
2 Cent Rear Sight

Last post by kozak6
Replies: 5
by boyntonstu » Fri Feb 19, 2010 12:44 pm

First post

The 2 cents are wheat copper cents made in the 1940's.

The half cent front sight fits nicely in the gap.

Last post

Very interesting.

Another possibility might be to drill a hole through a penny and use it as a peep sight.

5 Replies

1685 Views

Last post by kozak6
Sat Feb 20, 2010 2:57 am
Pressure question

Last post by Gun Freak
Replies: 35
by kjjohn » Sun Feb 14, 2010 4:53 pm
1

2

3
First post

I have a question on a hybrid piston valve design I have been working on, but I ran into a problem. Say you have a piston assembly such as the one...

Last post

Sort of makes sense now... not that important though.

Back to the piston disscusion, you could pressurize the sides poroportionally according to the...
35 Replies

10656 Views

Last post by Gun Freak
Wed Feb 17, 2010 5:19 pm
4mm ETG

Last post by rp181
Replies: 53
by 245Tommy » Sat Jan 16, 2010 3:18 am
1

2

3

4
First post

I built this out of parts I had lying around, the barrel is three brass tubes epoxied together, the electrode is a screw with an epoxy insulator....

Last post

try a harder projectile/softer plate.
53 Replies

16978 Views

Last post by rp181
Tue Feb 16, 2010 10:43 pm
threading an F.i.P ball valve into pvc.

Last post by Spud Bud
Replies: 4
by Spud Bud » Fri Feb 12, 2010 2:40 pm

First post

I have an F.I.P thread ball valve and was wondering how i could thread it into my 4'' pvc chamber. I dont think there is such thing as an F.I.P. tap...

Last post

i could just drill a hole on the pvc a little smaller than the diameter of the thread and screw it into the pvc. Will it be leak proof? This is for a...

4 Replies

1903 Views

Last post by Spud Bud
Sat Feb 13, 2010 5:34 pm
ahhh f@#k i broke it

Last post by Crna Legija
Replies: 23
by Crna Legija » Fri Feb 12, 2010 7:08 am
1

2
First post

i got a nail gun and was basically making it into what gsr did here

Link name goes here

i was putting it back together and overtighten a bold and...

Last post

im not sure where i got some of those powder powered guns bullets but me and a couple of mate put them in a fire and yep they blow up good louder...
23 Replies

6463 Views

Last post by Crna Legija
Sat Feb 13, 2010 9:57 am
How to protect your chronograph.

Last post by ramses
Replies: 2
by boyntonstu » Thu Feb 11, 2010 3:50 pm

First post

I have a Prochrono on order.

Having read stories about destroying chronys with misplaced shots, I began thinking about protecting the chrony.

Place...

Last post

Actually, it will be angled down, so it couldn't possibly crush the chrony..

That means that it will inevitably fall away from the chrony just as...

2 Replies

1012 Views

Last post by ramses
Thu Feb 11, 2010 4:33 pm
Help me with darts plz

Last post by boyntonstu
Replies: 5
by reedfe » Wed Feb 10, 2010 9:43 pm

First post

Soo I need some darts for my 1 in pneumatic. It's got breech loading and u would prefer some easier to make nail darts

Last post

Full ‘quiver’ of nail darts. 10 Gauge wads and corks.

The cork cutting and shaping is getting better each time.

My shooting range behind my...

5 Replies

1697 Views

Last post by boyntonstu
Thu Feb 11, 2010 1:42 pm
I need help fixing a leak

Last post by Brian the brain
Replies: 14
by reedfe » Sun Feb 07, 2010 5:22 pm

First post

umm ya so i have a leak between a 45 degree 't' and the 1 1/2 in pipe coming out of it. ive epoxyed all around it but the leak seems to be stronger...

Last post

The blowgun shouldn't leak if you put some PTFE tape on it.

How did you go about glueing the parts?
You did use primer I take it?
Given the fittings...

14 Replies

5041 Views

Last post by Brian the brain
Tue Feb 09, 2010 4:50 pm
For Sale: 55 gallon drum

Last post by rcman50166
Replies: 7
by rcman50166 » Sun Jan 31, 2010 4:38 pm

First post

Hi guys. I have another item for sale. It is a 55 gallon drum. It's made of plastic and has two caps. Maybe someone with better knowledge can help me...

Last post

Well the two 55 gallon containers are spoken for, I have a 100 gallon tank left but I do think anyone is going to bite. You may still PM me about it,...

7 Replies

3028 Views

Last post by rcman50166
Fri Feb 05, 2010 3:53 pm
Interesting air shotgun

Last post by Brian the brain
Replies: 14
by Gippeto » Wed Feb 03, 2010 5:24 pm

First post

Not overly imaginative, but interesting for its simplicity of design. Could possibly be improved by partially ballancing the valve. :)

Last post

Wrist...
shot myself in the wrist...

Pen tube, pointy stick and an elastic band taped to the tube..

Streched it too far back...ouch.
12 year olds...

14 Replies

3204 Views

Last post by Brian the brain
Fri Feb 05, 2010 11:13 am
QDV semi auto idea

Last post by tghhs
Replies: 14
by thebestnoobcake » Tue Feb 02, 2010 10:27 am

First post

This is just a random idea that popped up into my head. I decided to stick it up here for criticism/approval before I go to sleep.

It is a really...

Last post

Really the QDV in the wiki, (not techs) will have the same amount of force applied as a regular piston valve. I don't Think it should be there.

The...

14 Replies

15156 Views

Last post by tghhs
Thu Feb 04, 2010 5:35 am
Breaking Point

Last post by IMagius
Replies: 4
by SpudBlaster15 » Tue Feb 02, 2010 3:23 am

First post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

Last post

Excellent moment on Breaking Point. It was a rather spectacular way to demolish a house :P

Gotta love the Onion for reliable news :lol: I always...

4 Replies

2104 Views

Last post by IMagius
Wed Feb 03, 2010 4:54 am
Arduino for semi-auto

Last post by POLAND_SPUD
Replies: 4
by kjjohn » Mon Feb 01, 2010 8:16 pm

First post

Has anyone every used an Arduino board? I am thinking about buying a starter kit and learning how to. I came up with this idea, that you could use...

Last post

look what I've achieved with just one relay... I wish I was good at electronics....

linky

I don't think that a pressure sensor is 100% needed......

4 Replies

2249 Views

Last post by POLAND_SPUD
Mon Feb 01, 2010 9:52 pm
Potatoes on the History Channel

Last post by jrrdw
Replies: 11
by Spudnyk » Thu Jan 28, 2010 2:54 pm

First post

They are having a modern marvel on potatoes tonight here is the link kind of thought it was fitting :D

Edit by MrCrowley: You are not allowed to...

Last post

Remember the guy calling himself tvproducer ?

Probably made by him..

although I have heard no SF member claim to have been involved..

I wonder if...

11 Replies

4819 Views

Last post by jrrdw
Mon Feb 01, 2010 4:12 pm
Dust-off BBMG

Last post by jackssmirkingrevenge
Replies: 6
by Marffy » Sun Jan 31, 2010 4:52 pm

First post

does anyone think the Dust-off compressed air cans can power a bbmg. They are basically a bigger version of a co2 tire inflator. But with a lot less...

Last post

*cough*detent*cough*
He said significantly more efficient. :roll:

What could be more efficient than a valve with zero opening time and maximum...

6 Replies

2287 Views

Last post by jackssmirkingrevenge
Mon Feb 01, 2010 11:00 am
Most useful tool

Last post by chinnerz
Replies: 36
by RabidDuck » Sat Dec 26, 2009 8:19 pm
1

2

3
First post

What would you guys say the most useful or most helpful tool/machine you guys use while building or machining your cannons. I'm just interested in...

Last post

Dremel FTW
I love my dremel...
36 Replies

13583 Views

Last post by chinnerz
Fri Jan 29, 2010 1:32 am
how do i hook up a ignition coil

Last post by McCoytheLesser
Replies: 4
by Crna Legija » Wed Jan 27, 2010 7:27 pm

First post

I have a bosch transformer type ignition coil and was trying to make it spark but could not get it to.

i just wanted to see if eny of you could...

Last post

I never thought about discharging a flash capacitor into a coil. If you put another flash capacitor in parallel with the first one, there should be a...

4 Replies

4253 Views

Last post by McCoytheLesser
Thu Jan 28, 2010 11:40 pm
Do spuds tumble?

Last post by Techie
Replies: 14
by boyntonstu » Wed Jan 27, 2010 11:26 am

First post

I never shot a spud, carrot, or any other vegetable.

I wonder how far they go before/if they tumble?

IOW How far do they fly straight?

What length...

Last post

That video is at 1000 or so fps

I'd wager it's at least 10 times that, assuming it's a military testing range.
probably so, didn't thank about...

14 Replies

3531 Views

Last post by Techie
Thu Jan 28, 2010 6:36 pm
Hey anything in Florida

Last post by twizi
Replies: 7
by Spudnyk » Wed Jan 27, 2010 10:25 am

First post

Hey I'm kinda new to spudding wondering if they have any competitions in Florida.

Last post

there are no compition that i now of and im in boca

7 Replies

3581 Views

Last post by twizi
Wed Jan 27, 2010 5:20 pm
Suspension compressor thread

Last post by POLAND_SPUD
Replies: 7
by Zywiec » Thu Jan 21, 2010 4:12 pm

First post

Hi
I have decided to buy a suspension compressor, pumping air using a stirrup pump will take too much time beetwen each shot.
It was pretty cheap,...

Last post

hmmm it looks promising..

and even if it won't be able to reach high pressures it might be quite useful to have such a portable compressor

7 Replies

2691 Views

Last post by POLAND_SPUD
Mon Jan 25, 2010 4:02 pm
Been a while

Last post by Mike_Hunt0420

by Mike_Hunt0420 » Mon Jan 25, 2010 12:39 pm

I have been away for some time now, lots of nice cannons been made lately, good job all. I have been busy while I was gone, as soon as I get a...

0 Replies

2350 Views

Last post by Mike_Hunt0420
Mon Jan 25, 2010 12:39 pm
First 12kJ railgun shot

Last post by jackssmirkingrevenge
Replies: 29
by rp181 » Thu Jan 21, 2010 8:05 pm
1

2
First post

I fired off a shot today, and had quite bad results. This was probably due to the fact
projectile fit could have been better (see pics)
error in...

Last post

Actually, Its opposite magnetic principles.

Fair enough, I might have oversimplified the science ;)

For those of you who remember what I'm...
29 Replies

8239 Views

Last post by jackssmirkingrevenge
Mon Jan 25, 2010 1:16 am

New Topic

4846 topics

Page 36 of 194
- Jump to page:
Previous
1
…
34
35
36
37
38
…
194
Next

Return to Board Index

Information

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

General Cannon Discussion

Forum permissions

Login • Register