Search found 306 matches

by Orrin
Fri Feb 05, 2010 9:55 pm
Forum: Milling Machines
Topic: Van Norman #12
Replies: 8
Views: 5571

It depends upon the condition of the machine, but if it is in halfway good shape I'd say the price is quite reasonable. Of course this would vary from region to region; but, in my part of the country machine tools are scarce and they command a high price. The #12 you linked is much much less money t...
by Orrin
Sat Jan 16, 2010 10:23 pm
Forum: Live Steam
Topic: Vertical Boiler Tubes
Replies: 13
Views: 1956

John, I'm no expert on this, but I'm a fair guesser. This is my take on it: The upper end of the tubes in a vertical boiler are only seeing flue gas temperatures. Furthermore, they're at the far end of the flue from the fire. The upper end flue temperatures pale in comparison to those experienced by...
by Orrin
Sun Jan 03, 2010 8:58 pm
Forum: General Discussion
Topic: 1 1/2 years later the project is finished
Replies: 43
Views: 8860

Rolland, I wanted to say your Gatling gun is a work of art, but HotGuns beat me to it. Wow! It's a masterpiece. Well done!

Orrin
by Orrin
Sun Jan 03, 2010 6:43 pm
Forum: Live Steam
Topic: An Automatic Electric Boiler
Replies: 9
Views: 1277

One of the first HSM projects a friend of mine built was the D.E. Johnson boiler and steam engine combination from the Steam and Stirling plans. It works well. Rather than use the Chromalox thermoswitch he scratch-built a pressure-activated switch. He made provisions for adjustments, but the remarka...
by Orrin
Fri Jan 01, 2010 2:56 pm
Forum: Lathes
Topic: Stuck, then un-stuck lathe chuck.....
Replies: 12
Views: 5397

Especially if high cutting forces are involved, a screw-on lathe chuck "walks" its way into tightness, no matter how gently it was installed. When I remove a screw-on chuck I never try to "brute force" the thing. It walked on gently, so the thing can just as well walk itself off just as gently. I us...
by Orrin
Tue Dec 22, 2009 1:42 am
Forum: General Discussion
Topic: Fly Cutting Problems
Replies: 20
Views: 2924

4200 RPM with a 3 inch swing works out to (4200 * PI * .25 (feet)) = about 3300 surface feet per minute for the tool bit. I've never done the math to determine the SFPM, but I've cut lots of aluminum plate on a carpenter's 10-inch table saw. It's a bit noisy, but works just fine. The only problem i...
by Orrin
Tue Dec 22, 2009 1:28 am
Forum: General Discussion
Topic: 12 HP BEAM ENGINE MODEL COMPLETED
Replies: 15
Views: 2560

Your drawings are beautiful, Jose! The finished product is going to be gorgeous, for sure. You may recall that I built a Stuart Beam engine last summer. The entire project went off without a hitch, well almost. One hitch. After I got it all put together it would not make a complete revolution. It ha...
by Orrin
Fri Dec 11, 2009 12:45 am
Forum: Live Steam
Topic: IRS files tax lien on Train Mountain
Replies: 20
Views: 4555

I'm reminded of the unfortunate demise of the Towe Ford Museum at Deer Lodge, Montana. While Mr. Towe was still alive the IRS seized the finest Ford collection that ever existed and auctioned it off, scattering it to the ends of the earth. I won't pretend to know all the details, but IIRC Mr. Towe h...
by Orrin
Sun Nov 29, 2009 8:35 pm
Forum: The Photo Album
Topic: Link to my projects, some new, mostly old.
Replies: 1
Views: 2509

Link to my projects, some new, mostly old.

Some of my toys can be seen by going to the linked page and clicking on "Machine Shop Projects."

http://users.moscow.com/oiseming/lc_ant_p/Menu.htm

Regards,

Orrin
by Orrin
Mon Nov 23, 2009 10:19 am
Forum: I.C. Engines
Topic: Weld crank-case from steel plate?
Replies: 12
Views: 6903

A friend of mine from Down Under fabricates bar stock engines. AFAIK, he has never had any problems with his weldments. Here is the URL for his Web page:

http://www.oldengine.org/members/randmingold/

Reg is amazing. He is the most prolific model engine builder I've ever known.

Regards,

Orrin
by Orrin
Fri Nov 20, 2009 11:52 am
Forum: General Discussion
Topic: New DRO
Replies: 26
Views: 3686

If you are new to DRO, as I am, you might want to hear of my "discovery." Here goes: When I got my "new" DRO-equipped mill it didn't take long to discover that inaccuracies were creeping into my work. If I wanted to mill a slot wider than the milling cutter, it would wind up a few thou wider than ca...
by Orrin
Sun Oct 11, 2009 8:53 am
Forum: Live Steam
Topic: Modeltec
Replies: 10
Views: 3172

Dick, I'm sorry I cannot shed any light on your question; but, I'd like to mention a lucky stroke that happened to me. Down through the years I subscribed to ModelTec magazine off and on and had accumulated other odd lots of it; but, there were many I needed to make a complete set. I intended to con...