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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: Technician1002 » Sun Oct 16, 2011 9:42 pm

To make mine easy to seat, I added a small mechanical stop on the small cannon so the piston could not be pushed too far forward. Closing the valve properly is as simple as pushing in the knob until it stops.
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Unread postAuthor: jackssmirkingrevenge » Sun Oct 16, 2011 10:29 pm

Labtecpower wrote:You don't have to hurry, tomorrow I have a party and i'll need the whole tuesday to recover from it :D


Hehe when you regain consciousness it should be done :)
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 18, 2011 1:01 pm

here you go ;)
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Unread postAuthor: Labtecpower » Tue Oct 18, 2011 1:34 pm

A bit too fast with my PM, Looks very nice :)

Also a very nice polymer, I may take this up to 500 psi when I get a fridgy, And I definately want something strong :D
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Unread postAuthor: jakethebeast » Tue Oct 18, 2011 1:41 pm

JSR, received the valve today, its awesome! fantastic craftmanship!
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 18, 2011 1:46 pm

Labtecpower wrote:A bit too fast with my PM, Looks very nice :)


Eh, midweek drinking :D

Also a very nice polymer, I may take this up to 500 psi when I get a fridgy, And I definately want something strong :D


Acetal is surprisingly tough stuff, I would definitely trust this at 500 psi. I suggest a 10mm washer to spread the load though.

jakethebeast wrote:JSR, received the valve today, its awesome! fantastic craftsmanship!


Excellent, glad you like it :D looking forward to seeing it being put to good use ;)
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Unread postAuthor: Labtecpower » Tue Oct 18, 2011 1:57 pm

While it is at your place, Would it be a lot of work to put a slight bevel on the outer edges of the piston?

Sharp outer edges on plastic objects tend to get very ugly :wink:
Not necessary for the O-ring grooves BTW.



Eh, midweek drinking :D


Jealous? :D
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Unread postAuthor: jakethebeast » Tue Oct 18, 2011 2:00 pm

JSR, this is just one of the parts i need machined, i still need 4 (or 5) parts machined, this is a long-scale projekt, i dont wanna rush with it :wink:

for just to get your attention, its going to be 8mm 3000psi PCP airgun :wink:
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 18, 2011 2:07 pm

Labtecpower wrote:While it is at your place, Would it be a lot of work to put a slight bevel on the outer edges of the piston?


Well i don't want to clamp it in the chuck now and mark the surface, but I'll be careful ;)

Jealous? :D


There was a time ;) these days I just prefer machining!

i still need 4 (or 5) parts machined


And I like shineh blades :D
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Unread postAuthor: Labtecpower » Tue Oct 18, 2011 2:13 pm

Well i don't want to clamp it in the chuck now and mark the surface, but I'll be careful :wink:


I don't care about some slight marks, I think you have proved to be a good machinist :D

There was a time :wink: these days I just prefer machining!


I still prefer girls over lathes :D
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Unread postAuthor: jakethebeast » Tue Oct 18, 2011 2:16 pm

but if you are really good, you lathe WHILE you are with girls :D
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 18, 2011 2:26 pm

Labtecpower wrote:I don't care about some slight marks, I think you have proved to be a good machinist :D


done without marking, thank you masking tape.

I still prefer girls over lathes :D


They will become tiresome, besides the machining and ladies aren't mutually exclusive. Make "erotic massagers" and you'll be beating them off with a stick ;)
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Unread postAuthor: Labtecpower » Tue Oct 18, 2011 2:37 pm

Looking very good, JSR.

The price is almost too low :roll:

They will become tiresome, besides the machining and ladies aren't mutually exclusive. Make "erotic massagers" and you'll be beating them off with a stick :wink:


But the girls that are attracted in that way aren't completely what i'm searching for :D
I have found one that thinks my spudgun collection is "cute" :roll:
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 18, 2011 3:45 pm

Labtecpower wrote:The price is almost too low :roll:


Well if you want to pay more ;P

I'm still a novice at this, prices will go up as I get better so get 'em while they're hot :D

I have found one that thinks my spudgun collection is "cute" :roll:


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Unread postAuthor: mattyzip77 » Tue Oct 18, 2011 4:48 pm

That did come out extremely nice, almost perfect. I wish you could make a 2 inch version!! :( :(
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