Help with hand pump build
- Gun Freak
- Lieutenant 5
- Posts: 4971
- Joined: Mon Jan 25, 2010 4:38 pm
- Location: Florida
- Been thanked: 7 times
I want to build a little hand pump for my bbmg for airsoft games. I think 120 psi would be pretty easy to achieve. I am wondering what diameter pipe would be best to use. I want to use a galvanized steel nipple for the main body, either .5 or .75 so it is easy to pump... I am wondering if I could go any bigger than that and still be able to reach the pressure I want, and possibly a bit higher...
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
- Lockednloaded
- Staff Sergeant
- Posts: 1566
- Joined: Thu Sep 03, 2009 9:38 pm
- Location: Texas, USA
- Been thanked: 6 times
galvanized pipe would not work well as a body unless you sand down the ridge on the inside. I would use a sch80 nipple, or find some threaded seamless pipe
I love lamp
- Gun Freak
- Lieutenant 5
- Posts: 4971
- Joined: Mon Jan 25, 2010 4:38 pm
- Location: Florida
- Been thanked: 7 times
Haha yeah I know I was reading the thread about the other dude's pump, but actually a sch 80 pipe nipple isn't a bad idea, at all.... would that be capable of holding 200 psi and what size would be the biggest I can use while still being able to pump it quickly and easily?
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
- Gun Freak
- Lieutenant 5
- Posts: 4971
- Joined: Mon Jan 25, 2010 4:38 pm
- Location: Florida
- Been thanked: 7 times
Problem with using plain pvc is it's unthreaded, and it would make the piston unservicable, although I could use female adapters to make it able to be opened, I'll think about it... cool thanks.
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
- Gun Freak
- Lieutenant 5
- Posts: 4971
- Joined: Mon Jan 25, 2010 4:38 pm
- Location: Florida
- Been thanked: 7 times
Yep agree with c11man, don't wanna use copper, it's overkill for the max pressure I'm using anyway, plus 1" pvc is rated to I think 450 psi so I'm fine... and it's easier to work with... and yeah 1 1/4 inch is a little too big I think for a hand pump, it would get a little hard to pump.
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
- deathbyDWV
- Corporal
- Posts: 576
- Joined: Sat May 16, 2009 4:02 pm
- Location: Owasso, OK
Just a note, brass nipples are smooth all the way...
Haha I love taking things out of context...brass nipples are smooth all the way
Life's too short to mark off the items on your wish list...
- Gun Freak
- Lieutenant 5
- Posts: 4971
- Joined: Mon Jan 25, 2010 4:38 pm
- Location: Florida
- Been thanked: 7 times
And that's another option... pretty good one too, brass looks awsome and it is rated high enough for this purpose, but brass is expensive... Damn, I'm starting to talk like you with all the dot-dot-dot's lmao, I think I should put my title as DeathbyPW haha
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
- Lockednloaded
- Staff Sergeant
- Posts: 1566
- Joined: Thu Sep 03, 2009 9:38 pm
- Location: Texas, USA
- Been thanked: 6 times
1" may be pushing it a little for a hand pump. take the pump you have now, hold it to your shoulder and pump it up to its maximum pressure. if you have a normal bike pump this should be pretty hard, and your cylinder should be around 1". so I think you should go for a 3/4" sch80 nipple as the body instead of 1" sch40
I love lamp
- jackssmirkingrevenge
- Five Star General
- Posts: 26179
- Joined: Thu Mar 15, 2007 11:28 pm
- Has thanked: 543 times
- Been thanked: 319 times
It most definitely is, for every 10 psi you have to push down with a force of almost 8 lbs, reaching 120 psi means you need to apply 94 lbs, practically you'd have to sit on itLockednloaded wrote:1" may be pushing it a little for a hand pump.
hectmarr wrote:You have to make many weapons, because this field is long and short life
I personally would go for copper, its pretty cheap, can do high pressure, is smooth. But the thing I like most about it is that you can solder some fittings too it without a bunch of excess reducers and stuff.
The only issue I see is that it may be eaisier to dent than pvc, but i think it looks much nicer.
The only issue I see is that it may be eaisier to dent than pvc, but i think it looks much nicer.
Patience is a virtue, get it if you can, seldom in a women, never in a man.
- jackssmirkingrevenge
- Five Star General
- Posts: 26179
- Joined: Thu Mar 15, 2007 11:28 pm
- Has thanked: 543 times
- Been thanked: 319 times
Have considered a regged HPA/CO<sub>2</sub> setup? It's not too expensive (and a one time investment anyway), even cheaper if you set up a fridge compressor, and it will save you having to pump under fire
hectmarr wrote:You have to make many weapons, because this field is long and short life