A couple boxes of SHCSs and a counterbore. Good stuff. USGF I can't tell if you were being sarcastic or not. Is it good or bad? Or, for a quick esape, it could be neither. Moon, we are planning on building some intense stuff too. Note that this build would be very expensive even with a machine shop...

Well PVC being y hydro carbon and having chlorine in it is prone to give of HCL, tear gas, and essentially hydro chloric acid when heated/burnt. I assume there is a big risk of that happenign and I recomend trying grocery bags, however they need to be pressed into a mold hard and melted in cooking ...

One question, can i use aluminium for the die or does it have to be steel? I will need a grinder for my HSS blanks to make tools so really i guess it might be do able. You can make it from aluminum. If you decide to pour lead, I think any grade of aluminum will work. The softer grades will be harde...

I come up with a sketch of it, but then I read the article about the summer contest and I don't want to give away any information. I hadn't read the contest thread, now that I have you can all f*** off, I'm not sharing any f***ing ideas! Just kidding, I love you all equally as if you were the very ...

How about i take a standered drill bit and turn it on my lathe. I hold a grinding stone ot it so make a pellet like shape, then use the procedure I explained? Sounds do-able in theory, in practice, unless you have access to a cutter grinder, you will not cut HSS or carbide into the form you need. Y...

John, Ok, uh, Here's how I would do it. I would turn the pellet just as you describe. However, I would use a heat treatable steel like O-1 or A-2. They are easy to heat treat with instructions found anywhere on the net. Next, I would either mill, grind or hack off exactly half the diameter of the pe...

A couple boxes of SHCSs and a counterbore. Good stuff.

USGF

SNIP the cold pres forming sounds fairly complecated as i don't have either milling facilities nor a hydraulic press. SNIP John, the accuracy of your shot in part depends on the precision of your rounds. If your round is not uniform, you will get less that stellar results. One reason I and Jeep men...

John, If you can machine a steel mold, then you might use it as a cold forming die rather than a hot pour mold. Place a lead slug that is slightly larger than the finished projectile in the dies. Press together with a hydraulic car jack. The die needs an area where excess lead can bleed out. It may ...

jackssmirkingrevenge wrote: SNIP Back here

It will be a sad day when a multi-projectile sabot design is not recognised as a group amusement device.

Ah, life.

JSR, What exactly does "beating around the bush" mean?

USGF

I'm not a proponent or believer of over unity. I do have a concept that I thought was pretty cool though. We'd use a large bundle of fine capillary tubes. The water or other fluid would be drawn upward a certain distance. The water column raised constitutes energy. It is not "over unity" but it does...

Car axle is great stuff. Usually somthing like 1040 or 1045. Not a chrome moly. This is heat treatable stuff so if you struggle with tapping, you might consider annealing. I'm sure you noticed but the area close to the chopsaw cut is already annealed.

USGF

SNIP machine from a solid piece of 35mm, high-carbon, case hardened steel. There is a 10mm hole drilled directly through (chamber). SNIP Inonickname, exactly what kind of steel is it? We find a length of chrome moly etc and go nuts thinking of all the cool things we can (and do) make with it. I thi...

psycix wrote:1970?! You must be very old...

2 year old kid might think you are old. Never, ever old. Just older.

USGF

jeepkahn wrote: snip

4th base??? How many bases are there before you reach home plate???

When you're old and married, you're lifes mission will be to not fall asleep in the dugout...While waiting to get your chance to bat...

Jeep, Sadly, all too true....

USGF