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Old 10-21-2017, 03:37 PM   #1 (permalink)
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How I killed an afternoon... (and built a front block for my Rainmaker)

I've been unhappy with the arrangement of pneumatic components on my Rainmakers for a while, and I had a day off today, so I spent some time in the garage. I had a nice chunk of aluminum that, with some careful cutting and seat-of-the-pants measurements got turned into a front block arrangement. It gives me mounting points for everything up front instead of spaced around the gun's body and makes it look even less like a Rainmaker.

These pics don't show it, but I went back into the garage and made a vertical adapter to go on so I don't have to wait for a Minicocker ASA to make it's way here... I'll end up swapping it out at some point once I get one.

One of these days I'm planning to send it out to get Cerakoted, I'm just saving up some cash and waiting for VooDoo_Coatings to take on work again.

Passenger's side:



Driver's side:

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And God turned to Gabriel and said: “I shall create a land called Canada of outstanding natural beauty, with majestic mountains soaring with eagles, sparkling lakes abundant with bass and trout, forests full of elk and moose, and rivers stocked with salmon. I shall make the land rich in oil so the inhabitants prosper and call them Canadians, and they shall be praised as the friendliest of all people.”

“But Lord,” asked Gabriel, “Is this not too generous to these Canadians?”

And God replied, “Just wait and see the neighbors I shall inflict upon them.”

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Last edited by Jordan; 10-28-2017 at 05:57 PM.
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Old 10-23-2017, 06:22 AM   #2 (permalink)
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I don't think I've ever truly understood how a rainmaker worked until I saw your re-jigged hoses.

Beautiful work. Also good call with Voodoo, they've done great work for me in the past.
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Old 10-28-2017, 03:25 PM   #3 (permalink)
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Originally Posted by pbyrne233 View Post
I don't think I've ever truly understood how a rainmaker worked until I saw your re-jigged hoses.

Beautiful work. Also good call with Voodoo, they've done great work for me in the past.
Thanks! I've put a lot of time into this thing, trying to make something unique... at this point, there's not a whole lot that's still original.

I've been thinking about what I could do with getting air into the front block most of the week, and in the end, I decided against getting a Minicocker ASA and made my own, which I think will be stronger than a Minicocker version... this one threads right up to the front block and torques against it, so there shouldn't be any issues with potentially snapping it off.

I used an Automag vertical ASA, drilled straight through from the top and tapped it for 1/8" NPT. Once I'd threaded a pipe coupler into the front block, I drilled the VASA for clearance to allow the center of the pipe fitting to fit into the VASA, added a bunch of red Loctite, and torqued it on. The original air port on the side allows me to use a gauge instead of the port on the Stabilizer and lets me know what pressure I'm running regardless of type of reg on there, in case I want to swap on a CP reg that I have.

One other thing I did was install some PPS delrin flat rings on the bolt - I was cleaning up my work bench downstairs today and found them back from another project. They help a lot with the loose fit on the bolt but don't increase drag drastically.

I plan to Cerakote everything at some point, just haven't decided on color.

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Originally Posted by HurtCow View Post
And God turned to Gabriel and said: “I shall create a land called Canada of outstanding natural beauty, with majestic mountains soaring with eagles, sparkling lakes abundant with bass and trout, forests full of elk and moose, and rivers stocked with salmon. I shall make the land rich in oil so the inhabitants prosper and call them Canadians, and they shall be praised as the friendliest of all people.”

“But Lord,” asked Gabriel, “Is this not too generous to these Canadians?”

And God replied, “Just wait and see the neighbors I shall inflict upon them.”

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Last edited by Jordan; 10-28-2017 at 03:43 PM.
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Old 02-09-2018, 10:16 AM   #4 (permalink)
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Final version, I think.

I ditched the Angel frame with Ion board and installed a Pimp frame and WAS board - I can even run break beam eyes if I feel ambitious one day. I'll have a chance next month to try it out, I think.
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And God turned to Gabriel and said: “I shall create a land called Canada of outstanding natural beauty, with majestic mountains soaring with eagles, sparkling lakes abundant with bass and trout, forests full of elk and moose, and rivers stocked with salmon. I shall make the land rich in oil so the inhabitants prosper and call them Canadians, and they shall be praised as the friendliest of all people.”

“But Lord,” asked Gabriel, “Is this not too generous to these Canadians?”

And God replied, “Just wait and see the neighbors I shall inflict upon them.”

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Old 02-10-2018, 02:06 PM   #5 (permalink)
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Looks awesome and clean
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Old 02-13-2018, 03:06 PM   #6 (permalink)
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Nice! Especially the new front block.

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I'll have a chance next month to try it out, I think.
I'll be curious about the efficiency and operating pressure.
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Old 02-13-2018, 06:45 PM   #7 (permalink)
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Man, I've always wanted a rainmaker but now I don't think I'd ever be happy with one unless it looked as clean as yours.
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Who is this Chad Thompson you all are talking about?
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Old 02-13-2018, 07:24 PM   #8 (permalink)
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Looks awesome and clean
Thanks - I'm happy with the way it's turned out so far.

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Nice! Especially the new front block.

I'll be curious about the efficiency and operating pressure.
Thanks! Yeah, it turned out pretty good considering the tools I was using... man, did I do a lot of filing.

I think operating pressure should be lower, I've got a Rocket valve installed in it currently and I think it will run around the 250-270psi range depending on what velocity I'm shooting - the field I've been playing at has a 260FPS limit. Efficiency wise, I'm still moving a lot of air - my HPA tank chills noticeably after shooting a bunch of paint, but I just dropped a lighter hammer spring in so we'll see if that helps to eliminate hammer bounce.

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Man, I've always wanted a rainmaker but now I don't think I'd ever be happy with one unless it looked as clean as yours.
I appreciate that - this is the longest term project I've ever done, I usually sell them off before they get to this level. I've gone through several versions of this in the last year, and I had thought the Angel frame version would be the last, but I just wasn't totally happy with the trigger/board interface, and it was buggy at times, sometimes it wouldn't want to shoot until I'd pulled the trigger a couple of times. I suspect the Ion board is on it's last legs, so the Pimp frame showed up at a good time for me.

The WAS board also allows me to run break beam eyes, which I have a couple sets of, so if I get brave this year I might set it up with eyes... I just don't know if it's worth the extra work.

I do have a pump Rainmaker that the Angel frame will likely end up on, instead of the Piranha frame currently on it... just one more project littering the workbench downstairs.
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Originally Posted by HurtCow View Post
And God turned to Gabriel and said: “I shall create a land called Canada of outstanding natural beauty, with majestic mountains soaring with eagles, sparkling lakes abundant with bass and trout, forests full of elk and moose, and rivers stocked with salmon. I shall make the land rich in oil so the inhabitants prosper and call them Canadians, and they shall be praised as the friendliest of all people.”

“But Lord,” asked Gabriel, “Is this not too generous to these Canadians?”

And God replied, “Just wait and see the neighbors I shall inflict upon them.”

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My Collection

Last edited by Jordan; 02-13-2018 at 08:22 PM.
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