Search found 418 matches
- Thu Jul 04, 2013 9:58 am
- Forum: Ammo & Parts
- Topic: The Offcial Machinist Thread: Revised 01/04/2014
- Replies: 1097
- Views: 497870
I think for centering work on the lathe and tramming on a mill an analog dial indicator is actually better because it shows movement much more intuitively, you just see which way the needle is spinning you don't think about numbers. I also love not worrying about batteries, I have a great pair of an...
- Fri May 31, 2013 7:07 pm
- Forum: Pneumatic Cannons
- Topic: quick question; check valve as firing valve
- Replies: 4
- Views: 2139
if you assume the opening is 2" (its most likely a bit bigger) then you have over 3 in^2 of area being acted on, at 70 psi thats over 200 lbs that your bolt or whatever would have to support. Even with enough force the valves are designed to seal with back pressure so it may behave like cammyd32's. ...
- Sat Apr 06, 2013 6:24 pm
- Forum: Off-Topic Hobbies
- Topic: Going back to college
- Replies: 6
- Views: 3465
Solidworks and Autodesk inventor are both pretty good programs, if you get a .edu email from college then you can download autodesk inventor free for 3 years. For me the best way to practice was just grab a set of calipers and cad up random objects around my room. If theres something you cant figure...
- Tue Feb 14, 2012 6:29 pm
- Forum: Off-Topic Hobbies
- Topic: circuit question
- Replies: 3
- Views: 1824
- Tue Feb 14, 2012 3:09 pm
- Forum: Off-Topic Hobbies
- Topic: circuit question
- Replies: 3
- Views: 1824
circuit question
Hey guys got a quick question that is out of my electrical league so Im asking here. I recently got an old camera which parts are no longer available for and they only come up very rarely on ebay. My problem I do not have the correct power cord, I have the battery and the camera but no cord. The iss...
- Sun Dec 11, 2011 4:57 pm
- Forum: Ammo & Parts
- Topic: etched rifling
- Replies: 9
- Views: 6175
- Tue Nov 29, 2011 6:22 pm
- Forum: Combustion Cannons
- Topic: Which to build? Golf ball, Baseball , Or Soft ball.
- Replies: 17
- Views: 5067
I would go for golfball because they're the cheapest. Some one did build softball combustion, Ill see if I can find the link, baseball is probably do-able but youll get better speed, penetration and distance from a golfball.
heres the softball combustion
heres the softball combustion
- Sat Nov 19, 2011 5:35 pm
- Forum: General How-To & Discussion
- Topic: Any one with cad?
- Replies: 15
- Views: 5668
- Sat Nov 19, 2011 4:38 pm
- Forum: General How-To & Discussion
- Topic: Any one with cad?
- Replies: 15
- Views: 5668
- Sun Nov 13, 2011 6:36 pm
- Forum: Ammo & Parts
- Topic: 3D printers/CNC mills
- Replies: 169
- Views: 52202
just grab this whole mill for less than the price of a conversion
http://www.ebay.com/itm/160677962501?ss ... 1423.l2649
http://www.ebay.com/itm/160677962501?ss ... 1423.l2649
- Sat Nov 12, 2011 4:18 pm
- Forum: Ammo & Parts
- Topic: 3D printers/CNC mills
- Replies: 169
- Views: 52202
- Fri Nov 11, 2011 2:15 pm
- Forum: Ammo & Parts
- Topic: 3D printers/CNC mills
- Replies: 169
- Views: 52202
- Fri Nov 11, 2011 1:43 pm
- Forum: Ammo & Parts
- Topic: 3D printers/CNC mills
- Replies: 169
- Views: 52202
- Fri Nov 11, 2011 12:09 pm
- Forum: Ammo & Parts
- Topic: 3D printers/CNC mills
- Replies: 169
- Views: 52202
ive been looking into this a fair amount and so far the most promising homemade 3d printer is this one http://www.youtube.com/watch?v=IPmP0u1HuUM Im not sure of the exact process that is used but as you can see it achieves some incredible resolution and no support structure of anykind is needed. Tha...
- Fri Nov 11, 2011 1:13 am
- Forum: Ammo & Parts
- Topic: machined APFSDS projectiles
- Replies: 237
- Views: 111009