Search found 16141 matches

by Harold_V
Thu Feb 22, 2018 4:15 pm
Forum: General Discussion
Topic: LED Shop Lighting
Replies: 112
Views: 2485

Re: LED Shop Lighting

Back when I was taking modern physics (elementary quantum mechanics and relativity), my prof told me something interesting. Anything you heat up will glow with the same color (spectrum, really) at a given temperature. Hmmm. I wonder if the professor had any experience with melting (pure, as in not ...
by Harold_V
Thu Feb 22, 2018 3:54 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: Procunier 1-E R8 tapping attachment 2E
Replies: 5
Views: 518

Re: Procunier 1-E R8 tapping attachment 2E

Might be a good idea to mention if the collets and wrenches are included. Without the collets, the head is of no value.

H
by Harold_V
Thu Feb 22, 2018 2:43 am
Forum: The Photo Album
Topic: Patio's projects
Replies: 377
Views: 63612

Re: Patio's projects

It takes a lot of practice to make things that work right out of the gate. So many things to keep track of, and it's all too easy to miss a detail or two. Nice thing is, it's all experience, so you should be improving, and I expect you are. That's pretty work. You'll get better about little things l...
by Harold_V
Wed Feb 21, 2018 2:45 am
Forum: Welding
Topic: Miller three phase welder questions
Replies: 17
Views: 265

Re: Miller three phase welder questions

GlennW wrote:
Tue Feb 20, 2018 10:47 pm
Sounds like it's working!
Sure does. My Lincoln 300/300 uses the same method (spark gap) to produce the required high frequency. For that matter, the first generation of induction furnaces did, too.

H
by Harold_V
Wed Feb 21, 2018 2:42 am
Forum: The Photo Album
Topic: Patio's projects
Replies: 377
Views: 63612

Re: Patio's projects

Lookin' good!
Did you notice how much faster things went this time, in spite of doing more work?

H
by Harold_V
Tue Feb 20, 2018 4:02 am
Forum: Milling Machines
Topic: ZX7016 Milling Machine to CNC
Replies: 8
Views: 191

Re: ZX7016 Milling Machine to CNC

Pretty much any machine with a round column would be questionable for use as a mill. That's not to say that they don't work, for they do, but it's reasonably easy to cause the head to move under a heavy cut, plus orientation of the head is lost if it has to be moved. All in all, a rather poor design...
by Harold_V
Tue Feb 20, 2018 2:59 am
Forum: General Discussion
Topic: Spin Grinding Wheel Before Starting
Replies: 25
Views: 691

Re: Spin Grinding Wheel Before Starting

......................................... I ended up turning the tube three times, reducing the wall to an average of about .045". Polishing was accomplished under a constant flood of coolant. One hell of a messy job, but with a great outcome. .................... H Chuckle Obviously you didn't hol...
by Harold_V
Mon Feb 19, 2018 3:59 pm
Forum: Build Log
Topic: My N&W class A 1239 (gauge 5", 1 in 10 scale)
Replies: 148
Views: 21437

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Asteamhead wrote:
Mon Feb 19, 2018 8:07 am
Harold: Works again, thank you!
You're welcome, but it should be understood that I am just the messenger. Mike, who owns the board, has done an exceptional job of keeping it functioning properly.

H
by Harold_V
Mon Feb 19, 2018 2:54 am
Forum: Live Steam Marketplace
Topic: 1” scale D&RGW Alco RS-3s
Replies: 3
Views: 644

Re: 1” scale D&RGW Alco RS-3s

Rob, Is it possible that these engines were in California in '90? I recall seeing them, or a pair just like them. I think at the Golden Gate Live Steamers, but I'm not sure. About the same time as the IBLS meet in LA. I was totally impressed with the reality they projected. One had to look to ensure...
by Harold_V
Mon Feb 19, 2018 2:47 am
Forum: General Discussion
Topic: Machinists Level
Replies: 21
Views: 430

Re: Machinists Level

I own one of those levels. They are not known for remaining flat, as the relief in the casting and resulting finishing of one face causes internal stresses to be uneven, eventually resulting in the base curving. It's not a lot, but it's more than one should consider acceptable. As has already been s...
by Harold_V
Mon Feb 19, 2018 2:29 am
Forum: General Discussion
Topic: A Bygone Era
Replies: 11
Views: 542

Re: A Bygone Era

Glenn Brooks wrote:
Sat Feb 17, 2018 2:37 am
Is that called a ‘Johnson Bar’?
It sure is! Have a look: https://www.bing.com/images/search?q=im ... &FORM=IGRE

H
by Harold_V
Sun Feb 18, 2018 4:29 pm
Forum: Live Steam
Topic: Oil Firing 3/4" Scale
Replies: 21
Views: 1041

Re: Oil Firing 3/4" Scale

Asteamhead wrote:
Sun Feb 18, 2018 8:02 am
Harold: Thanks!
You're quite welcome. And thanks for the report of the problem, which brought it to our attention. Mike has made the required adjustment, so the board should now accept your pictures.

H