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PostPosted: Sat Aug 04, 2018 5:41 pm 
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Location: Bowmanville, Ontario
Yeah... I really need to see a diagram or the actual part.
Instead of explaining the actual parts, try explaining what the assembly will do. What it's effect is. Then I can backwards engineer it in my mind.... With mind powers! :shock:

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Fully rebuilt Benjamin .22 classic
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PostPosted: Sat Aug 04, 2018 5:57 pm 
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Location: New Mexico, USA
C84 sir, you have talent :drinkers:


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PostPosted: Sat Aug 04, 2018 6:00 pm 
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As said, you new end cap is giving the gun more power, I think you are actually using the rod to give more pressure onto the spring?! Like say the spring has been compressed before you cock the gun, so when you pull the trigger, the hammer just hits harder....

I think the power adjuster end cap should works like giving more space for the spring inside ( that's why it is deeper than just a cap), and use the rod and nut to control how much spring force to be given ....

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Camo Chaser long barrel rifle kit
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PostPosted: Sat Aug 04, 2018 6:02 pm 
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Location: New Mexico, USA
Re breech screws, these work great:

https://onlinestore.magnumairpower.com/ ... eech-screw

I have a couple of these, but I have not used them though because my Don Cothran breeches came free with very nice countersunk ss screws.


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PostPosted: Sat Aug 04, 2018 6:07 pm 
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Location: New Mexico, USA
Image

I have semi assembled mine. Will put a BlueFork trigger with red anodized grips on it. The AR buttstock will be anodized red too.


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PostPosted: Sat Aug 04, 2018 6:22 pm 
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Location: Caronport, Saskatchewan
Here's a picture diagram of the original simple ssg
It keeps the spring at a gap from the hammer when uncocked so that when the hammer hits the valve stem and rebounds back it hits that rod and dissipates its energy instead of bouncing back and forth a bunch of times wasting air. Image

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PostPosted: Sat Aug 04, 2018 7:04 pm 
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That diagram is showing when it's cocked. when fired there would be a gap between the hammer and rod. The rod slides back when cocked on this version, so you need to watch it isn't so long it catches your face when aiming :shock: :D
There are more complicated versions that don't stick out. Doing a google search for ssg and Rsterne, will give you hours of reading :D

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PostPosted: Sat Aug 04, 2018 7:13 pm 
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YepYep wrote:
As said, you new end cap is giving the gun more power, I think you are actually using the rod to give more pressure onto the spring?! Like say the spring has been compressed before you cock the gun, so when you pull the trigger, the hammer just hits harder....

I think the power adjuster end cap should works like giving more space for the spring inside ( that's why it is deeper than just a cap), and use the rod and nut to control how much spring force to be given ....

Sent from my LG cellphone


My setup can both add and reduce compression. I gave headroom in both directions. My design was actually intended to reduce compression, but obviously with the screw further back it can also compress the spring more than stock.

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Fully rebuilt Benjamin .22 classic
Some other junk rifles


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PostPosted: Sat Aug 04, 2018 8:06 pm 
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Alright, I think I have it.
I can modify my new system to incorporate this. I can control hammer strength still.

So, the idea here is to create a stop for the hammer. I could dial up the hammer spring force, allowing the hammer to still strike with full force but to create a stopping point. So the hammer essentially strikes the stop and the valve pin is merely pushed out of the way. Thus, activating the valve but not allowing the valve spring to create a rebound. Then the adjustment would be to find the efficient point between hammer force, distance traveled to stop point and amount the valve is activated.

Is that in the ball park?

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Fully rebuilt Benjamin .22 classic
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PostPosted: Sun Aug 05, 2018 12:25 am 
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Done.
I believe I accomplished what I was supposed to do in the first place. But, I have, in the end, created a very respectable amount of variation in power and efficiency.

I really need to find myself a chrony...

My goal is to keep the pistol legal, but efficient. I have my pal, but not rpal, don't need no heat...

So, the process.
I annealed the hammer. Tapped the inside to 10-24 about .450" deep. Used a small piece of mild steel stock I had. About .190"x4" long. Threaded one end 10-24, the other 6-32. Thread locked the bar into the hammer once it was re-hardened. Drilled out the center of the brass spring retention screw, cut off the spring guide probe sticking out the end, two 6-32 jam nuts, and viola, I think I have it. Just in the garage here, I've been able to somewhat fine tune it to fire a pellet that embeds itself in a piece of lumber, but doesn't spit out a bunch of vapor, and doesn't do the "PAH, DAH, DAH, DAH". Just a single "pah". Although, it's VERY touchy, if I had the knowledge of what needed to be done in the beginning I would have opted for much finer threads for more control. But, I believe I will be able to dial this in very nicely.

Thanks so much to everyone who helped! I'm learning a ridiculous amount of info in a very short period of time. I do tend to jump in with both feet into a hobby, and usually push my luck along the way. Lol.
Ask my wife about my the creation of my machine shop a few years ago.
I'll add some pictures of my main machines if anyone's interested.
For now, here's the final mod.


Attachments:
File comment: Stick out
IMG_20180805_010543.jpg
IMG_20180805_010543.jpg [ 493.72 KiB | Viewed 192 times ]
File comment: The shaft
IMG_20180805_010512.jpg
IMG_20180805_010512.jpg [ 617.46 KiB | Viewed 192 times ]
File comment: Re-hardening the hammer
IMG_20180805_004148.jpg
IMG_20180805_004148.jpg [ 628.23 KiB | Viewed 192 times ]

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Shawn


Fully rebuilt Benjamin .22 classic
Some other junk rifles


Last edited by Carpenter84 on Sun Aug 05, 2018 12:36 am, edited 1 time in total.
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PostPosted: Sun Aug 05, 2018 12:30 am 
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Location: Bowmanville, Ontario
Apparently I'm only allowed 3 pictures at a time. Here's more.


Attachments:
File comment: The lathe is DC powered controlled by a complex controller I built a few months ago.
IMG_20180805_011122.jpg
IMG_20180805_011122.jpg [ 652.19 KiB | Viewed 200 times ]
File comment: The 10x30" Enterprise lathe made by MySore Kerloskar in India.
IMG_20180805_011117-1200x900.jpg
IMG_20180805_011117-1200x900.jpg [ 339.09 KiB | Viewed 200 times ]
File comment: Final assembly. I may trim the screw once I find the sweet spot.
IMG_20180805_011043.jpg
IMG_20180805_011043.jpg [ 504.91 KiB | Viewed 200 times ]

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Shawn


Fully rebuilt Benjamin .22 classic
Some other junk rifles
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PostPosted: Sun Aug 05, 2018 12:33 am 
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Location: Bowmanville, Ontario
More


Attachments:
File comment: Ko Lee 6x12 surface grinder. Currently a crap catcher...
IMG_20180805_013250-900x1200.jpg
IMG_20180805_013250-900x1200.jpg [ 269.43 KiB | Viewed 200 times ]
File comment: 9x42 column mill made by First. It's a Taiwan made mill.
IMG_20180805_011152-900x1200.jpg
IMG_20180805_011152-900x1200.jpg [ 306.26 KiB | Viewed 200 times ]

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Shawn


Fully rebuilt Benjamin .22 classic
Some other junk rifles
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PostPosted: Sun Aug 05, 2018 1:38 am 
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Joined: Sat Nov 05, 2016 10:52 am
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Location: Caronport, Saskatchewan
Wow, nice work and great machines! You really jump in! Congrats, looks like you now have a very tune able gun. I really recommend Bob's posts on the ssg, great stuff and lots of great charts showing the change in efficiency.
Congrats!

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PostPosted: Sun Aug 05, 2018 8:08 am 
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Joined: Wed Jul 26, 2017 7:01 pm
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Location: GTA, ON
WOW ~ you just have the machines as what my company have for hundreds of ppl size manufacture plant ~

And nice work done! I can believe it's so good and just finished in such a short time!!

lol ~ it's impressive for us to started from cutting a little treads of the spring then finished at making out an atomic bomb ~

Cheers! [emoji482][emoji482]

Sent from my LG cellphone

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Future AA ProSport
HW30/35
2240+14" barrel
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia


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PostPosted: Sun Aug 05, 2018 8:24 am 
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Joined: Fri Jul 27, 2018 10:34 pm
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Location: Bowmanville, Ontario
Hahaha. Not quite an atomic bomb. Thanks for the compliments

This SSG post "Bob" made. Can someone point it out? I tried to search SSG on the forum but not nothing came up.

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Shawn


Fully rebuilt Benjamin .22 classic
Some other junk rifles


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