Search found 2716 matches

by ctwo
Fri Jul 03, 2020 2:25 am
Forum: The Junk Drawer
Topic: Harold!
Replies: 30
Views: 741

Re: Harold!

Best wishes Harold and take care. You've made a difference in my world of machining (and perhaps a little more) and I really appreciate the opportunity to benefit from your knowledge and experiences that you so generously share.
by ctwo
Fri Jul 03, 2020 2:13 am
Forum: General Discussion
Topic: Precision Toolmaker's Vises
Replies: 6
Views: 260

Re: Precision Toolmaker's Vises

The only face that is not within two tenths is the end that the Fowler is on, so I would not be able to put them both side-by-side and clamp them on the front/back in a larger milling vise. It seems that would be the easiest thing to fix with a surface grinder. I also have a 3" that I should check. ...
by ctwo
Thu Jul 02, 2020 10:48 am
Forum: General Discussion
Topic: Precision Toolmaker's Vises
Replies: 6
Views: 260

Precision Toolmaker's Vises

Thanks to Tom Lipton, I got the urge to buy a small vise. These are similar to the ones from Shars, but I got them from ebay. I measured all contact surfaces for parallelism and they were about a tenth on each surface worst case, most much less, and no more than two tenths between two common faces. ...
by ctwo
Mon Apr 06, 2020 11:54 pm
Forum: General Discussion
Topic: Tapping Heads Tapmatic A5 and ?
Replies: 26
Views: 6346

Re: Tapping Heads Tapmatic A5 and ?

Harold, I understand your point on cutting to depth, but there was some context there, such as if I did not have a "gauge", and I have neither wires nor a thread mic. Is there a better option without those, and considering what we are most likely making, even considering this particular application?...
by ctwo
Sun Apr 05, 2020 11:13 pm
Forum: General Discussion
Topic: Tapping Heads Tapmatic A5 and ?
Replies: 26
Views: 6346

Re: Tapping Heads Tapmatic A5 and ?

Harold, thanks for the discussion. I am a bit confused though on your point about inexpensive thread wires, but then recommend them. I imagine they would work just the same as expensive thread wires, but without the tight tolerance. I was looking at the popular PeeDee wires vs. some of the other les...
by ctwo
Sun Apr 05, 2020 11:14 am
Forum: Home Shop CNC
Topic: Series 1 Boss head rebuild
Replies: 5
Views: 1910

Re: Series 1 Boss head rebuild

I rebuilt mine, without any knowledge of these machines. It was a good project, but nothing was particularly hard other than figuring out what needs to be done. I have a few misc posts here. You just need to be careful of the ballscrew because it will easily unthread and balls will go bouncing away....
by ctwo
Sun Apr 05, 2020 10:06 am
Forum: General Discussion
Topic: Tapping Heads Tapmatic A5 and ?
Replies: 26
Views: 6346

Re: Tapping Heads Tapmatic A5 and ?

1 1/4-16 2A has a major dia range of 1.2485"-1.239" and a minor dia range of 1.1808"-1.1622". Pitch dia 1.2079"-1.2028". I was reading a bit about thread wires and read a bit about "best size wires," which, if I understand correctly, contact the pitch diameter. What this tells me is that I could ha...
by ctwo
Wed Apr 01, 2020 10:07 am
Forum: General Discussion
Topic: Tapping Heads Tapmatic A5 and ?
Replies: 26
Views: 6346

Re: Tapping Heads Tapmatic A5 and ?

I don't even think a thread mic could have helped me.
by ctwo
Tue Mar 31, 2020 9:07 pm
Forum: General Discussion
Topic: Tapping Heads Tapmatic A5 and ?
Replies: 26
Views: 6346

Re: Tapping Heads Tapmatic A5 and ?

Thanks folks. What a face palm and yet such an excellent learning experience. Aside from the pitted welding, it does look like I'm half way there.
by ctwo
Mon Mar 30, 2020 9:15 am
Forum: General Discussion
Topic: Tapping Heads Tapmatic A5 and ?
Replies: 26
Views: 6346

Re: Tapping Heads Tapmatic A5 and ?

Found some time to weld up the stripped threads. Wondering where I went wrong. The 16 tpi nut threads seem OK, but a bit worn. A caliper measurement yielded a minor diameter of ~1.170" max, so the question was what diameter to machine the welds. I decided to machine the major diameter to 1.208", exp...
by ctwo
Sun Mar 29, 2020 1:34 pm
Forum: The Junk Drawer
Topic: Involute Cutter Set
Replies: 2
Views: 1326

Involute Cutter Set

Why is this in the junk drawer? Because I suspect too good to be true, even from our friends... #1-8, 16DP, 14.5PA, HSS, sixteen bux. https://www.ebay.com/itm/22mm-Inner-14-5-Bore-HSS-8H-8Pcs-Set-Dp16-PA14-1-2-No1-8-Involute-Gear-Cutters/303511675742?hash=item46aab4a35e:g:dG8AAOSwc7td~F9N Let's hope...
by ctwo
Mon Mar 09, 2020 10:25 am
Forum: The Junk Drawer
Topic: Repairs
Replies: 9
Views: 2248

Re: Repairs

They are working this same tech into your hand tools.