Really Compact APH
- strato_2r5
- Posts: 162
- Joined: Thu Mar 03, 2011 11:08 pm
Really Compact APH
Hi guys, I'm new to the homemade world and I'm thinking of making an APH. The ones on this site are really bulky and I'm thinking of making this Shotblast sized. Any tips for a trigger? And is the Pressure chamber big enough? Here's my design for it.
Sorry if I'm not active much, busy on another forum and another project non-soaker related.
- soakernerd
- Posts: 302
- Joined: Thu Jan 21, 2010 7:09 pm
Re: Really Compact APH
That would work....sort of. You really need a large PC for good performance
The real problem in most homemades isn't their size, but their ergonomics. It is very hard to create a good trigger for a APH.
I am currently working on a similar project:The valve from that design does not work. I will be using something like a PVAT, but housed in the Tee like the original design.
The real problem in most homemades isn't their size, but their ergonomics. It is very hard to create a good trigger for a APH.
I am currently working on a similar project:The valve from that design does not work. I will be using something like a PVAT, but housed in the Tee like the original design.
Pessimist: These blasters hold no water
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
- martianshark
- Posts: 689
- Joined: Mon Jul 06, 2009 10:24 pm
Re: Really Compact APH
That would not work - there's no pressure chamber. As it is, it might squirt out a little water for a moment... but it really isn't going to do anything without a PC.
- cantab
- Posts: 1492
- Joined: Fri Oct 19, 2007 1:35 pm
Re: Really Compact APH
Not going to work very well. Remember in the pressure chamber the air always sits above the water. As soon as you tilt the blaster upwards - which you have to for best range - the air is right against the firing valve, and when you shoot you'll just shoot air.
I work on Windows. My toolbox is Linux.
Arsenal:
Super Soaker: XP215, 2xXP220, Liquidator, Aquashock Secret Strike M(odded), Arctic Blast M, CPS1200, CPS2100, SC Power Pak, 3l aquapack, 1.5l aquapack
Water Warriors: Jet, Sting Ray M, Shark, Argon M, Tiger Shark, PulseMaster
Others: Waterbolt, The Blaster, Storm 500, Shield Blaster 2000, generic PR gun, generic backpack piston pumper (broken), 3l garden sprayer M, 10l water carrier:
Arsenal:
Super Soaker: XP215, 2xXP220, Liquidator, Aquashock Secret Strike M(odded), Arctic Blast M, CPS1200, CPS2100, SC Power Pak, 3l aquapack, 1.5l aquapack
Water Warriors: Jet, Sting Ray M, Shark, Argon M, Tiger Shark, PulseMaster
Others: Waterbolt, The Blaster, Storm 500, Shield Blaster 2000, generic PR gun, generic backpack piston pumper (broken), 3l garden sprayer M, 10l water carrier:
- strato_2r5
- Posts: 162
- Joined: Thu Mar 03, 2011 11:08 pm
Re: Really Compact APH
Would adding two more bends in the pressure chamber fix that problem? The top pipe would bend down towards the pump then forwards, creating an S-shape. Would that solve that air problem?cantab wrote:Not going to work very well. Remember in the pressure chamber the air always sits above the water. As soon as you tilt the blaster upwards - which you have to for best range - the air is right against the firing valve, and when you shoot you'll just shoot air.
Sorry if I'm not active much, busy on another forum and another project non-soaker related.
- mysterio
- Posts: 142
- Joined: Wed Jul 14, 2010 11:18 pm
Re: Really Compact APH
Soakernerd, you didnt even reference my thread?
Back on topic, it would somewhatly, not really. it would only fire flat, and if you angled it, the air would bubble out like in the original design. Slower, but it would.
Back on topic, it would somewhatly, not really. it would only fire flat, and if you angled it, the air would bubble out like in the original design. Slower, but it would.
- soakernerd
- Posts: 302
- Joined: Thu Jan 21, 2010 7:09 pm
Re: Really Compact APH
oops. Couldn't remember who posted that. Sorry.
Credit to mysterio for suggesting the PVAT as a firing mechanism.
Credit to mysterio for suggesting the PVAT as a firing mechanism.
Pessimist: These blasters hold no water
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
- strato_2r5
- Posts: 162
- Joined: Thu Mar 03, 2011 11:08 pm
Re: Really Compact APH
So how could I fix that?mysterio wrote:Soakernerd, you didnt even reference my thread?
Back on topic, it would somewhatly, not really. it would only fire flat, and if you angled it, the air would bubble out like in the original design. Slower, but it would.
Sorry if I'm not active much, busy on another forum and another project non-soaker related.
- soakernerd
- Posts: 302
- Joined: Thu Jan 21, 2010 7:09 pm
Re: Really Compact APH
Add a pressure chamber. A vertical length of pipe is really needed for it to perform well.
Pessimist: These blasters hold no water
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
- cantab
- Posts: 1492
- Joined: Fri Oct 19, 2007 1:35 pm
Re: Really Compact APH
Attached is a possible layout for the pressure chamber and nozzle section. This is probably the most compact feasible layout, however it will sacrifice performance compared to the more usual vertical design.
The pressure chamber - the uppermost pipe - should be as large a diameter as you consider practical. The barrel - the lower pipe - should be large diameter for performance, but small in volume to reduce "dead space" (water that cannot be fired). So its diameter is a compromise. You could shorten it, having the pressure chamber protrude further forward than the nozzle.
The pressure chamber - the uppermost pipe - should be as large a diameter as you consider practical. The barrel - the lower pipe - should be large diameter for performance, but small in volume to reduce "dead space" (water that cannot be fired). So its diameter is a compromise. You could shorten it, having the pressure chamber protrude further forward than the nozzle.
I work on Windows. My toolbox is Linux.
Arsenal:
Super Soaker: XP215, 2xXP220, Liquidator, Aquashock Secret Strike M(odded), Arctic Blast M, CPS1200, CPS2100, SC Power Pak, 3l aquapack, 1.5l aquapack
Water Warriors: Jet, Sting Ray M, Shark, Argon M, Tiger Shark, PulseMaster
Others: Waterbolt, The Blaster, Storm 500, Shield Blaster 2000, generic PR gun, generic backpack piston pumper (broken), 3l garden sprayer M, 10l water carrier:
Arsenal:
Super Soaker: XP215, 2xXP220, Liquidator, Aquashock Secret Strike M(odded), Arctic Blast M, CPS1200, CPS2100, SC Power Pak, 3l aquapack, 1.5l aquapack
Water Warriors: Jet, Sting Ray M, Shark, Argon M, Tiger Shark, PulseMaster
Others: Waterbolt, The Blaster, Storm 500, Shield Blaster 2000, generic PR gun, generic backpack piston pumper (broken), 3l garden sprayer M, 10l water carrier:
- strato_2r5
- Posts: 162
- Joined: Thu Mar 03, 2011 11:08 pm
Re: Really Compact APH
Thank you cantab. I'll try that once I get the materials. Any tips for a trigger mechanism?
Sorry if I'm not active much, busy on another forum and another project non-soaker related.
- mysterio
- Posts: 142
- Joined: Wed Jul 14, 2010 11:18 pm
Re: Really Compact APH
Build the PVAT that soakernerd mentioned in the thread earlier. It should work out okay, as long as its a tee.
- C-A_99
- Posts: 1502
- Joined: Tue Aug 01, 2006 11:09 pm
Re: Really Compact APH
If you really need the compact design, I'd have to seriously recommend making a CPH or APH pressurized reservoir design instead. Even if you have a backpack, an APH can still get large quite easily as a lot of volume is needed to store the air.
A PRH (pressurized res homemade) would be easier to build and may not perform as well as a standard APH. For a CPH, you can nest the bladder into the reservoir and keep it fairly small. No one has actually done it before, but it doesn't seem to be difficult to do if your reservoir design allows for it.
Edit: soakernerd's correct on that, my bad.
A PRH (pressurized res homemade) would be easier to build and may not perform as well as a standard APH. For a CPH, you can nest the bladder into the reservoir and keep it fairly small. No one has actually done it before, but it doesn't seem to be difficult to do if your reservoir design allows for it.
Edit: soakernerd's correct on that, my bad.
Last edited by C-A_99 on Sun Mar 06, 2011 10:39 pm, edited 1 time in total.
- soakernerd
- Posts: 302
- Joined: Thu Jan 21, 2010 7:09 pm
Re: Really Compact APH
I think JLspacemarine's CPH had and internal res/PC.
Pessimist: These blasters hold no water
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
Optimist: But their small output means they last just as long
Marketing: Huge blasts of water!
user: I shot it at an angle and it went a whole ten feet!
- strato_2r5
- Posts: 162
- Joined: Thu Mar 03, 2011 11:08 pm
Re: Really Compact APH
How do I stop my resovoir from caving in when pumping? And mysterio, would you please draw a design showing how to attach the PVAT?
Sorry if I'm not active much, busy on another forum and another project non-soaker related.