Search found 24 matches

by jared555
Mon Jan 05, 2009 4:57 pm
Forum: Pneumatic Cannons
Topic: First cannon results (sort of)
Replies: 12
Views: 2600

TurboSuper wrote:...
And your point in posting this message is? If it is because of the 'I don't feel like desoldering' comment.... it works and removing the solder without just cutting wires would take quite a bit of time and also risk overheating the LED
by jared555
Mon Jan 05, 2009 2:24 am
Forum: Pneumatic Cannons
Topic: First cannon results (sort of)
Replies: 12
Views: 2600

I don't feel like desoldering but next time I do an electronic project I will
by jared555
Mon Jan 05, 2009 12:14 am
Forum: Pneumatic Cannons
Topic: First cannon results (sort of)
Replies: 12
Views: 2600

Eh, it is just parts I had available at the time.... The LED assembly was only rated for 2-3 volts

Edit: and sorry, I know this should probably be in the showcase forum not this one.... I would have pictures today but I slept the entire day due to limited sleep the two days before.
by jared555
Sun Jan 04, 2009 10:11 pm
Forum: Pneumatic Cannons
Topic: First cannon results (sort of)
Replies: 12
Views: 2600

I am going to be modifying the sprinkler valve as soon as I get the parts .
by jared555
Sun Jan 04, 2009 6:28 pm
Forum: Pneumatic Cannons
Topic: First cannon results (sort of)
Replies: 12
Views: 2600

The original post is the result of posting at 3AM..... Chamber Diameter: 4" Chamber Length: 2x 5' Valve: 1" Unmodified sprinkler valve Valve Control: Small electronic control box with two switches and an LED. The first switch is a DPDT toggle switch that turns on the LED and allows power to flow to ...
by jared555
Sun Jan 04, 2009 4:56 am
Forum: Pneumatic Cannons
Topic: First cannon results (sort of)
Replies: 12
Views: 2600

First cannon results (sort of)

Well I just got back from playing with my cannon. It was indoors so I was limited on my ammo choices..... Sorry that I don't have any pictures yet, the cannon is still at the building I was playing in. This is with an unmodified sprinkler valve. The mid sized nerf darts flew around 100 feet with a b...
by jared555
Sat Jan 03, 2009 10:26 am
Forum: Ammo & Parts
Topic: Bracing
Replies: 4
Views: 1558

Bracing

What would you suggest for bracing two chambers together? The gun is configured with the barrel in between the two chambers and it is an interchangable barrel system. Basically it is configured like OoO (only the barrel is up a bit higher). It is 4" PVC chambers that are 5' long each. they are only ...
by jared555
Fri Jan 02, 2009 2:47 pm
Forum: General How-To & Discussion
Topic: Small barrel ammo block
Replies: 4
Views: 997

Small barrel ammo block

What would the best way be to stop small ammo (marbles, etc.) from going all the way back in the barrel into the valve, etc. without restricting airflow?
by jared555
Fri Jan 02, 2009 12:05 am
Forum: Ammo & Parts
Topic: Ammo GGDT calculations
Replies: 6
Views: 1984

Ammo GGDT calculations

Is there a guide somewhere with what to put in for the Friction parameter in GGDT for say, a marble? (A list of different common ammo could be of benefit
by jared555
Tue Dec 30, 2008 11:01 pm
Forum: Pneumatic Cannons
Topic: Multi chamber cannon examples
Replies: 5
Views: 1114

No, I am looking for good examples of good designs :) Not talking about independent valves, etc. just having multiple chambers rather than one really long piece of pvc..... guess it is actually still just one chamber even if it is multiple lengths of pvc..... SWAT I think is an example of what I am ...
by jared555
Tue Dec 30, 2008 10:05 pm
Forum: Pneumatic Cannons
Topic: Multi chamber cannon examples
Replies: 5
Views: 1114

Multi chamber cannon examples

What are cannons that are good examples of multi chamber pneumatic cannon designs? (There is a difference between finding different cannons with multiple chambers, and finding good, reliable designs)
by jared555
Tue Dec 30, 2008 8:01 pm
Forum: Ammo & Parts
Topic: PVC Fittings
Replies: 1
Views: 966

PVC Fittings

Is there any indicator other than NSF-PW that pipe fittings are pressure rated? Every single fitting over 2" I found except MAYBE one or two at menards and lowes was NSF-DWV or had almost no indication at all (in the case of Sanitary Pipe) One entire section at lowes had NSF-SD or something like tha...
by jared555
Mon Dec 29, 2008 4:50 pm
Forum: Ammo & Parts
Topic: Stores
Replies: 12
Views: 2729

lowes and menards and ace hardware = fail for 2 1/2 inch sch40 lol
by jared555
Mon Dec 29, 2008 1:24 pm
Forum: Ammo & Parts
Topic: Stores
Replies: 12
Views: 2729

ace hardware is one of those places (I got a 2 or 3 foot piece of 2" there a while back).... my only thought was maybe lowes or menards would have pvc with ends that would just work to start
by jared555
Mon Dec 29, 2008 1:15 pm
Forum: Ammo & Parts
Topic: Stores
Replies: 12
Views: 2729

Notice I listed three choices ;) but thanks for the suggestions so far