Any interest?
I had thought about cutting a groove in my loading gate. But I decided I liked carrying pellets in a pellet pen instead.At target rich times I grab the pen and pistol and go outside to do battle with the squirrels... If I was pulling pellets from a pouch or tin, the groove would be more helpful.
Quote from: Rallyshark on September 10, 2017, 01:36:40 PMIt looks like there will be a few of us to review the Huma soon then! When I do get it, I'm gonna see if I can make it work with no guts in the factory "reg", as opposed to simply bridging it as Huma states... I'm wondering what it will do with that reg set to 150bar too. Right now, the best I've been able to get out of it 790s with the 15gr sniper magnums, so a tick over 21fpe. That ain't bad for a .177 though. I'm thinking removing the guts of the factory "reg", and opening up the breathing holes in that factory contraption will effectively give it a bit more plenum to work with. Of course, that won't mean a thing if I can't get it to seal.Finding out if you can make things work is half the fun, even if you don't succeed That was my idea too ... Sadly the flow path of the OEM regulator DOES NOT lend it self to opened up passages. The spigot of OEM reg that slides into the trigger frame vents into the plenum between the o-rings of the mount spigot, sadly this is also mid way in the short center bore where the OEM regs spool sealing o-ring rests. This prevent you from cross drilling at that location. Now if one were to perhaps make small plug w/ o-ring that is held down via the set point adjusting cap using just the very edge of the center hole, you could likely get away cross drilling Agreed there IS some plenum volume to be gained if you could get the space of the air tubes end cap and the attachment parts ( Ex reg body parts ) to be a more common space unobstructed by little passages.
It looks like there will be a few of us to review the Huma soon then! When I do get it, I'm gonna see if I can make it work with no guts in the factory "reg", as opposed to simply bridging it as Huma states... I'm wondering what it will do with that reg set to 150bar too. Right now, the best I've been able to get out of it 790s with the 15gr sniper magnums, so a tick over 21fpe. That ain't bad for a .177 though. I'm thinking removing the guts of the factory "reg", and opening up the breathing holes in that factory contraption will effectively give it a bit more plenum to work with. Of course, that won't mean a thing if I can't get it to seal.Finding out if you can make things work is half the fun, even if you don't succeed
Donny if you can pull that off, please post photos so we can follow this a bit easier. My Huma should be here tomorrow from what the tracking info is telling me.
Keep in mind this isn't necessarily to scale, and I didn't show every detail, but it should get the idea across anyway. Yes, I used my high end CAD software, a.k.a. microsoft paint, lol!
REG NO WORKIE There's a step inside the tube The reg won't go past it. Even with the O-ring removed. Reg. OD is 1.055". End plug OD is 1.0535"
Quote from: Rallyshark on September 16, 2017, 02:42:09 AMKeep in mind this isn't necessarily to scale, and I didn't show every detail, but it should get the idea across anyway. Yes, I used my high end CAD software, a.k.a. microsoft paint, lol!Donny, what size hole are you planning to drill through the peek plug?
Quote from: Rallyshark on September 16, 2017, 02:42:09 AMKeep in mind this isn't necessarily to scale, and I didn't show every detail, but it should get the idea across anyway. Yes, I used my high end CAD software, a.k.a. microsoft paint, lol!I did mine the other day ....The diagonal hole in area of reg body that goes into receiver HAD TOO be kept at a diagonal angle & was drilled out to .125" having it intersect the inner bore still breaking out any remaining space for an I.D. o-ring of a plug as shown in drawing So ... made the plug in reverse so the o-ring was INSIDE the tension cup sealing the adjustment wrench hole. Now using some JB weld screwed in the adjustment cup with JB sealing the threads and plug inside the cup. Let dry and then cleared out any overhang of material in the 1/8" hole. NICE Next took the air cylinder spigot drilling it all the way threw with a 1/8" bit. used a thin o-ring as shown to seal spigot & body, Cleaned it all up & assembled. DONE !!
Quote from: BSJ on September 16, 2017, 10:48:05 AMREG NO WORKIE There's a step inside the tube The reg won't go past it. Even with the O-ring removed. Reg. OD is 1.055". End plug OD is 1.0535" My PP700 air cylinder as well had been machined at I.D. to @ 1.058" specs beyond threads but was done so deep enough to seat the reg body that was made at 1.055"The air cylinder is symmetrical being threading at each end the same ... may want to remove filler cap and check if the bore depth is the same or deeper at the other end of tube ?
Nope, it's the same on both ends.Huma says they measured all of two sample pistols...
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