(~2mL water heated by 3kJ pulse at 11kV. Burst pressure of the tube is ~7500psi)
"In the world of spuds today"
ITWOTOPRTST: Assembled capacitor bank, tested new voltage divider, confirmed that what I now regard as "low pressure" does this to type L 1/2" copper tube:
(~2mL water heated by 3kJ pulse at 11kV. Burst pressure of the tube is ~7500psi)
(~2mL water heated by 3kJ pulse at 11kV. Burst pressure of the tube is ~7500psi)
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
-
warhead052
- Staff Sergeant 3
- Posts: 1769
- Joined: Mon Mar 21, 2011 5:41 pm
DYI, all I can say to that is wow.
-
jackssmirkingrevenge
- Five Star General
- Posts: 26203
- Joined: Thu Mar 15, 2007 11:28 pm
- Has thanked: 569 times
- Been thanked: 343 times
drex wrote:I had a go at making an APFSDS round this week.
Will you actually fire it, if so, at what please say steel plate please say steel plate please please please!?
DYI, what is "low pressure" then
hectmarr wrote:You have to make many weapons, because this field is long and short life
-
Labtecpower
- Sergeant 3
- Posts: 1297
- Joined: Sat Feb 20, 2010 6:38 am
- Location: Pyongyang
- Has thanked: 5 times
- Been thanked: 13 times
I screwed up my backstop today
[youtube][/youtube]
[youtube][/youtube]
-
Technician1002
- Captain
- Posts: 5189
- Joined: Sat Apr 04, 2009 11:10 am
Nice. I like the cannon recoil. It bounces off something and ends up forward of where it started. What did you use for a projectile?
-
Labtecpower
- Sergeant 3
- Posts: 1297
- Joined: Sat Feb 20, 2010 6:38 am
- Location: Pyongyang
- Has thanked: 5 times
- Been thanked: 13 times
I placed the cannon against the doorstep, as I don't want to demolish my knees
I used the projectile shown on the previous page. It's a bullet with a stainless steel head, and an ABS body. A friend turned it at school, from some stuff lying around.
I used the projectile shown on the previous page. It's a bullet with a stainless steel head, and an ABS body. A friend turned it at school, from some stuff lying around.
PM me all the dimensions and I can do a drawing to determine the CP (center of pressure). Please use decimal inches or metric for accuracy.drex wrote:Shot slap thru a stove with my APFSDS round at lunch. It did not fly as straight as I had hoped, Ill upload the high speed when i get of of work.
What is the distance from the nose tip to where the "rocket" balance point is? (CG center of gravity)
-
POLAND_SPUD
- Captain
- Posts: 5402
- Joined: Sat Oct 13, 2007 4:43 pm
- Been thanked: 1 time
that looks like a direct effect of muzzle blast... next time use a gun with a smaller chamber
Children are the future
unless we stop them now
unless we stop them now
or a muzzle brake/flash hider type thing. To appease JSR, you could use a 55 gallon drum as a suppressor/silencer.POLAND_SPUD wrote:that looks like a direct effect of muzzle blast... next time use a gun with a smaller chamber
POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name
