My 3 axis skull...in progress - Page 65

Specter · #**641** (**permalink**) 05-04-2008, 09:41 AM

Gym- you completely lost me here. Can you clarify? I don't know what a manual knockout punch is. I'm googling it- and finding sets for $700! Surely that can't be what you're talking about. Any hints?
Thanks

Specter · #**642** (**permalink**) 05-04-2008, 09:44 AM

Gym-
Actually, I think I get what you are saying now- but not completely. Why use a knockout punch at all? Can't we just use tin snips and cut the shape out of the sheet metal?
Thanks!

Specter · #**643** (**permalink**) 05-04-2008, 10:01 AM

Yeah- sorry to be a psycho-poster today- but I wanna get this done! LOL. I'm not finding a tap/die set that carries a 2-56 size. Checked harbor freight- nothing. They have other sets, but none that go that small. Suggestions?

RBC · #**644** (**permalink**) 05-04-2008, 10:10 AM

Quote:

Originally Posted by Specter

ok, I"ll check out a hobby store today for the threaded rod. Also- how do I go about drilling/tapping the center hold on the rod? I guess I need to buy a tap set? Any suggestions on that one?
Thanks!

spector go to my tutorial and read what some of the people have used to make what you want and it doesn't cost much Thanks

Specter · #**645** (**permalink**) 05-04-2008, 10:22 AM

RBC-
I'm not seeing anything in there about this stuff. The tutorial ends at the spinal coupling- am I missing something?
Thanks

Abunai · #**646** (**permalink**) 05-04-2008, 10:32 AM

Quote:

Originally Posted by Specter

ok, I"ll check out a hobby store today for the threaded rod. Also- how do I go about drilling/tapping the center hold on the rod? I guess I need to buy a tap set? Any suggestions on that one?
Thanks!

Spectre,

The hobby store will probably also have a tap and a drill bit packaged together to drill and tap a 2-56 hole. They have them for 4-40 holes too.

I ended up buying a titanium bit from Home-depot, because the one in the set from the hobby store broke on my first attempt. (I don't remember the exact size, but if you find the bit/tap set at the hobby store, you'll know the right size for the titanium bit.) Drll SLOWLY, and back out every couple of seconds to let the bit and the rod cool down. I used a drill press. I drilled a hole in a piece of scrap 2x4 to put the rod in to hold it steady.

Specter · #**647** (**permalink**) 05-04-2008, 10:35 AM

Ahhh- ok- that's a big help. I was trying to decide between a scroll saw, and a drill press the other day. I went with the scroll saw. DANG IT! LOL. I'll check out the hobby stores around here and see what I can find.
Thanks!

RBC · #**648** (**permalink**) 05-04-2008, 10:49 AM

Quote:

Originally Posted by Specter

RBC-
I'm not seeing anything in there about this stuff. The tutorial ends at the spinal coupling- am I missing something?
Thanks

is a work in progress I just started writing it but Thanks

Specter · #**649** (**permalink**) 05-04-2008, 02:31 PM

ok, apparently I don't know how to tap grooves into a piece of all thread. I just broke my tap inside the hold of the all thread- I'm not very happy about it. Let me ask you guys- do you put a lot of pressure on it when you're twisting the tap? I wasn't putting any pressure at first, and it was just spinning in circles on me- not cutting grooves in there. I AM using oil with it- any suggestions here?
Thanks

wicc_ed · #**650** (**permalink**) 05-04-2008, 02:54 PM

For the side to side linkage, I used a washer with a hole drilled in it between two nuts.