Lost it in move! The valve portion was always unscrewed when not in use, so of course the piston was removed too. And it got lost...Technician1002 wrote:I gotta ask, What happened to the original piston?
Search found 118 matches
- Sun May 19, 2013 11:39 am
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
- Sat May 18, 2013 9:27 pm
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
- Sat May 18, 2013 9:16 pm
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
Well, considering it was build completely from at least sch40, it could be for higher pressures if you wanted...I just have a general rule of no higher than 40-60psi for PVC, period. I do not care. Sch40 does not indicate that the pipe is pressure rated. Most of the fittings on your cannon look rat...
- Sat May 18, 2013 9:10 pm
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
Well, considering it was build completely from at least sch40, it could be for higher pressures if you wanted...I just have a general rule of no higher than 40-60psi for PVC, period. I do not care. http://www.engineeringtoolbox.com/pvc-cpvc-pipes-pressures-d_796.html Looking at the chart, 4" pvc has...
- Sat May 18, 2013 8:43 pm
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
You might want to do some tests before you ship it out (if you can find a way to seal the barrel temporarily) and whoever receives it should also do some tests. I have PVC cannons that have been sitting in my garage for as long as five years and I am quite apprehensive about using them ever again. ...
- Sat May 18, 2013 8:08 pm
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
- Sat May 18, 2013 1:02 pm
- Forum: Pneumatic Cannons
- Topic: Free piston valve golf ball cannon (Richmond, TX)
- Replies: 18
- Views: 5969
Free piston valve golf ball cannon (Richmond, TX)
Take it off my hands, it's been sitting in the garage for years. Taking up space... See previous posts for pics of build. It's MISSING the piston, which you will have to lathe yourself. Pretty easy just use some 2" HDPE stock. 4" PVC, 7' air tank. All sch40 or sch80 build. No DWV in sight. Sleeved S...
- Thu Jul 09, 2009 10:42 am
- Forum: Ammo & Parts
- Topic: Get your pistons at Academy?
- Replies: 9
- Views: 3517
I brought this up like 2 years ago, if I remember correctly...they all weigh a b|tch :wink: But if you do some weight cutting down, i'm sure you could get them to work without blowing out the back of your housing. Are you sure??? Some of them felt about the same weight as my cellphone, and that onl...
- Thu Jul 09, 2009 1:19 am
- Forum: Ammo & Parts
- Topic: Get your pistons at Academy?
- Replies: 9
- Views: 3517
Just a sports store. http://www.academy.com/Gaderelguitarist wrote:What is Academy? Some internet store?
All in all though a great find for anyone looking to create a large bore piston valve.
I'm sure you can find these at any boating supply shop. I just need to bring some calipers next time I go.
- Thu Jul 09, 2009 12:19 am
- Forum: Ammo & Parts
- Topic: Get your pistons at Academy?
- Replies: 9
- Views: 3517
Get your pistons at Academy?
I was there today and I was walking through the boating section and I saw these: Bow rollers They come in all shapes/sizes/weights/material, ranging from soft rubber to hard plastic, to super light weight. I believe they ranged from 2-4", and were about $3-5 each. http://img.alibaba.com/photo/103652...
- Tue Jun 02, 2009 10:50 am
- Forum: Off-Topic Hobbies
- Topic: Got my lathe!
- Replies: 26
- Views: 8867
For a project like a piston valve, having super accurate calipers doesn't matter. You're simply comparing one measurement to another, as long as it gives you the same reading every time, that's all you need. But Mitutoyo is a very good brand. That's all my boss uses, and he's had them for 5+ years, ...
- Fri May 29, 2009 8:03 pm
- Forum: Off-Topic Hobbies
- Topic: Got my lathe!
- Replies: 26
- Views: 8867
Indexable carbide is the most expensive form of tooling to buy, and to use. BUT, you don't need a grinder. A fine diamond file will suffice for "touching up" the cutting edge. Indexable carbides will break and chip at any excuse. :x I won't recommend that you get them for now, you don't really need...
- Fri May 29, 2009 5:18 pm
- Forum: General How-To & Discussion
- Topic: How to build a 3" piston
- Replies: 6
- Views: 4931
- Fri May 29, 2009 4:18 pm
- Forum: General How-To & Discussion
- Topic: How to build a 3" piston
- Replies: 6
- Views: 4931
Hey I was wondering how deep did you make the o-ring grooves and what size o-rings. Thanks because I am going to use your how-to for the piston in my gun. I don't get why no one else commented on your how-to I think its great and a very good desighn. Also sorry for the bump I think good how-to's li...
- Wed May 27, 2009 6:56 pm
- Forum: Pneumatic Cannons
- Topic: high pressure piston help
- Replies: 11
- Views: 2602