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The Offcial Machinist Thread: Revised 01/04/2014

A place to ask general spud cannon related questions.
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 30, 2013 1:47 pm

No worries, I count you as a trusted customer :)
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Unread postAuthor: wyz2285 » Tue Apr 30, 2013 2:01 pm

Thanks :)
May I know the shape of the parts and how they will be assembled?
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 30, 2013 2:03 pm

I was thinking of a monolithic core similar to the part here and a spring to keep it tight.
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Unread postAuthor: wyz2285 » Tue Apr 30, 2013 2:19 pm

Hum I was thinking something like this
Image
Not sure if there is enough space for such through.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 30, 2013 2:24 pm

This is the original set I had made for Jake:
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Unread postAuthor: wyz2285 » Tue Apr 30, 2013 2:46 pm

In your opinion, does independent baffles work better than only one core? I haven't tried any yet so, you're the specialist, you decide :)
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 30, 2013 2:49 pm

Doesn't make that much of a difference to be honest, especially on a springer where most of the noise comes from the spring anyway and the volume is so small.
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Unread postAuthor: Labtecpower » Tue Apr 30, 2013 2:53 pm

Jackssmirkingrevenge wrote:herewith the result


Impressive work!
What kind of wood did you use for this box?
I assume you used acid etching and a brass plate for the emblem at the lid?
You should really try salt water etching on Ferrous metals, it gives a nice deep etch in a matter of seconds.
I've used it on 316L stainless with success.

edit;

Doesn't make that much of a difference to be honest, especially on a springer where most of the noise comes from the spring anyway and the volume is so small.


Ever tought about making a gas ram for a spring gun? they eliminate a lot of twang..
Haven't had the chance to make one for my Hammerli yet :roll:
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Last edited by Labtecpower on Tue Apr 30, 2013 2:55 pm, edited 1 time in total.
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Unread postAuthor: wyz2285 » Tue Apr 30, 2013 2:55 pm

Make sense. Then do whatever you think it's easier :) meanwhile I'm looking for a new scope for it.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 30, 2013 5:12 pm

Labtecpower wrote:Impressive work!


Thanks, I hope she agrees :)

What kind of wood did you use for this box?


I have no idea, must have been something fancy though because it was the backing of a plaque from my father's old office.

I assume you used acid etching and a brass plate for the emblem at the lid?


Yup, concentrated nitric acid on a design cut from masking tape.

You should really try salt water etching on Ferrous metals, it gives a nice deep etch in a matter of seconds.
I've used it on 316L stainless with success.


I haven't really gotten into working with ferrous metals because of the power limitations of the Sherline, hopefully soon I will upgrade...

Ever tought about making a gas ram for a spring gun? they eliminate a lot of twang..
Haven't had the chance to make one for my Hammerli yet :roll:


Reminds me of a very old thread...

http://www.spudfiles.com/forums/home-ma ... t9049.html
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Unread postAuthor: jakethebeast » Tue Apr 30, 2013 5:51 pm

Its actually funny how big difference baffles make though 97k is a springer. It reduces the sound and makes the gun sound even more pro :D
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Unread postAuthor: wyz2285 » Tue Apr 30, 2013 5:56 pm

It is loud isn't it? I thought so because every shot I take there is always a sharp bang, very different from the spring bounce.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 30, 2013 6:07 pm

Still one of the quietest springer rifles around apparently: http://www.straightshooters.com/decibel ... rguns.html
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Unread postAuthor: jackssmirkingrevenge » Sat May 04, 2013 5:04 am

Here's wyz's monolithic baffle stack to complement the fine example of German engineering he wisely chose to invest in :)
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Unread postAuthor: wyz2285 » Sat May 04, 2013 5:28 am

Nice! When I saw both email notification from this topic and a pm, I thought it was about this :D can't wait to get it.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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