I found a piece of pipe in the scrap metal pile at work yesterday. A galvanized 4"x12" nipple in the middle, with a coupler on one side and a solid brass 4" camlock plug on the other. It's just waiting to be built into a hybrid, HGDT says that with a 20X mix (probably not safe, I haven't calculated burst pressures yet), and 4 lb 4" projectile, I would get 73000 Ft/lbs.
But the matching aluminum camlock socket would set me back about $50, brass or SS about $150, and the bushings to go down to 1/2" so I can connect it to a pump and propane would be another $50-100, not to mention the barrel...needless to say that without a job I am strapped for cash and I can build many more smaller launchers with that money, and a giant hybrid probably shouldn't be my second cannon.
Also, we have a LOT of metal electrical conduit at work that I can use. Mostly 1" and 1-1/2", but I found a few pieces of 3/4", 1-1/4" and 3". Do these have any use in spudding? Most are unthreaded for use with compression fittings, but a few 1-1/4" conduits have threads on them. Other than the issue with the seam, can these be used as barrels? What about on a hybrid? How high of a mix could I take them too? Found a couple couplers too, I could do a 60' barrel if I had a big enough chamber and enough space.
Posted: Fri Jul 06, 2012 8:49 pm
by Crna Legija
shardbearer wrote:I found a piece of pipe in the scrap metal pile at work yesterday
shardbearer wrote:needless to say that without a job I am strapped for cash
Posted: Sat Jul 07, 2012 4:31 pm
by mattyzip77
Ummmmm sooooo do you work or do you not work??? Make up our mind!
Posted: Mon Jul 09, 2012 4:48 pm
by Labtecpower
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Posted: Mon Jul 09, 2012 5:03 pm
by jackssmirkingrevenge
haha nice!
Worth the price of that new watering can mum made you buy
Posted: Mon Jul 09, 2012 5:13 pm
by Labtecpower
Worth the price of that new watering can mum made you buy
Somehow it has *mysteriously* disappeared grom the garden after I discovered the holes
Posted: Mon Jul 09, 2012 8:57 pm
by shardbearer
Yeah, it's my dad's work, I hang around cause they have lots of nice tools (no lathe or mill though ) and free stuff in the scrap pile.
Posted: Tue Jul 10, 2012 12:09 am
by jackssmirkingrevenge
Labtecpower wrote:Somehow it has *mysteriously* disappeared grom the garden after I discovered the holes
Every true spudder has a similar story were the steel slugs hollowed out?
Posted: Tue Jul 10, 2012 11:17 am
by Labtecpower
Every true spudder has a similar story
I'm very happy I didn't hit the water tank besides it instead, would be less easy to hide
were the steel slugs hollowed out?
Yep, And as you can see from the exit hole on the watering can, it flew straight
I spotted a ripped piece of grass in the garden, I might me able to dig it up
Posted: Tue Jul 10, 2012 12:28 pm
by Labtecpower
Labtecpower wrote:
Every true spudder has a similar story
I'm very happy I didn't hit the water tank besides it instead, would be less easy to hide
were the steel slugs hollowed out?
Yep, And as you can see from the exit hole on the watering can, it flew straight
I spotted a ripped piece of grass in the garden, I might me able to dig it up
I actually have a drawing of it;
Posted: Tue Jul 10, 2012 12:33 pm
by jackssmirkingrevenge
Nice... centre of gravity? looks like the walls could have been a bit thinner...
) and free stuff in the scrap pile.
were the steel slugs hollowed out?
