my micro bombard

[matterest]

i got the idea from the 1nd nano cannons arm race    !!!!!!!!!!!!!!!!!!  v

[Zulu]

Are those threaded couplings?  If so, how are they connected? 
Zulu

[RocklockI]

that looks cool . welcome ! another doer ! .......now we are gettin somewhere .

Gary

[matterest]

ZULU, YES THOSE ARE THREAD COUPLINGS I TOOK A LONG BOLT AND BORED IT OUT AND PUT 2 COUPLINGS ON THE ONE AT THE FRONT END IS NOT ON ALL THE WAY
 I AM USING FISHING WEIGHTS AND STEEL 1/4" SLING SHOT AMMO.

    I THINK ITS VERY FUN

[GGaskill]

What size bore and what size couplings?

[matterest]

I HAVE NO CLUE     .       BUT EAGLE CLAW SIZE 4 FISHING WEIGHT FIT PERFECT IN THE FRONT END COUPLING, ITS BORE IS BIGGER   

[GGaskill]

So you are putting the shot in the threaded portion, not the drilled portion?

[Zulu]

So you are putting the shot in the threaded portion, not the drilled portion?

Then the powder charge is going into the threaded portion of the rear coupling?
matterest,
Help us understand how this works.
Zulu

[matterest]

 THE PART I DRILLED OUT IS THE POWDER CHAMBER ITS 2" LONG I DONT FILL IT ALL THE WAY THEN I WRAP A SLING SHOT AMMO IN A PAPER TOWL IT GOES IN THE THREADED PORTION...

WOULD YOU LIKE ME TO MAKE A DIAGRAM ?

ZULU, THE BOLT GOES ALL THE WAY THROUGH THE 1ST COUPLING  THE POWDER CHAMBER IS BORED 2" INTO THE END OF THE BOLT.

[Double D]

Turn off you cap lock key, please...you don't have yell at us..we are a bit hard of hearing, but we can read just fine.

[smokemjoe]

 Is this safe ?, I have gotten one heck of a surprise what a little dap of powder does in a beer can mortar and a BB mortar.
 

[GGaskill]

Is this safe?

I wouldn't make a cannon this way, but I have a machine shop in my garage.  It sounds like the chamber is the drilled hole and the bore is the threaded end of the second coupling.  I think there is some risk of premature ignition with the powder fouling in the outer threads but the charge must be pretty small so overall I don't think there is much risk. 

However, the risk is in the hands of the operator.  He is what controls how much powder is in the equation.