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Joe's Howitzer

Posted: Thu Jun 17, 2010 12:26 am
by deathbyDWV
Hey guys...

Not sure who remembers this but, it's gone through ALOT of changes and upgrades.

I was a complete noob at the time I built this, so there have been some things I've upgraded and some that I changed...

So I guess I'll make a list:
Increased porting
Fixed sealing leak
Shortened stand
Reduced pilot volume
Wrapped pilot over to top (for compact-ness)
New secondary pilot
New gauge
Muzzle brake
Took off back piece on stand (changed from I to T)

Lots of new ammo.

Lots of perforated plywood.


So on to specs:
6' x 4" chamber
10'x 2" barrel (partially removeable (for storage))
SP valve pilot
(anything else?)

Now pics!!!

Whole thing on stand...
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Pilot area...
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Settin up to use "knocker" round...
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(In this shot, it went through 4 sheets, bounced off the pile of mulch and flew around 150' into my neighbors yard...

Now the uncommon parts...
This is the piston. It has a 4" diamond blade at the front and the soft side of velcro to help seal. Where's the rubber you ask?
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Here it is!!! It used to be a 2" union. It is also used as the barrel spacer...
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By this next week, I'll have pics of all the ammo I have.
And hopefully some vids, maybe some high speed...



*Quick Update*
This is a pic of the back two boards in that set of four above.
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This is the only pic I can find right now.
I'll have more this weekend (in high quality), and videos.

Posted: Thu Jun 17, 2010 1:00 am
by nosnik
any chance of damage pictures yet?

Posted: Thu Jun 17, 2010 7:01 am
by deathbyDWV
But I guess I forgot to mention, I can get damage this weekend. Hopefully...

Posted: Thu Jun 17, 2010 7:31 am
by spudtyrrant
thats a clever idea modding the 2" union, very nice cannon, can't wait to see that damage :twisted:

Posted: Thu Jun 17, 2010 7:56 am
by deathbyDWV
Thanks. Damage this weekend...

Posted: Thu Jun 17, 2010 9:12 am
by Gun Freak
Yep love the union seat idea, great. Sweet cannon!

Posted: Thu Jun 17, 2010 9:20 am
by deathbyDWV
Thanks freak... :D

(that sounded kinda offensive...)

Posted: Thu Jun 17, 2010 9:27 am
by Gun Freak
Yeah it does... lol everybody does that...

Does the barrel flex after the union and wouldn't the space between the barrel segments mess up the projectile path?

Posted: Thu Jun 17, 2010 12:19 pm
by deathbyDWV
The barrel isn't heavy enough to flex much at all. The union was smaller than the barrel but I dremeled it out...