Search found 436 matches

by Cary Stewart
Wed May 23, 2018 7:42 pm
Forum: Riding Scale Railroading
Topic: Code 332 rail for 3/4 scale?
Replies: 4
Views: 108

Re: Code 332 rail for 3/4 scale?

To use this rail for 3/4" scale (3 1/2" gage) you should know that rail height and your flange depth. This will also affect travel through switches. Is the rail height the same as that for standard G/No.1 gage rail? An interesting thought though.
Cary
by Cary Stewart
Fri Apr 27, 2018 7:36 pm
Forum: Live Steam
Topic: Hello, I am new here and am trying to build an Atlantic without a metal lathe.
Replies: 39
Views: 2371

Re: Hello, I am new here and am trying to build an Atlantic without a metal lathe.

Many 1" to the foot (1:12 scale) Atlantics have been built with a 9" by 18" or 24" lathe. Usually a South Bend. The Taiwan/China built 9X20 lathes are not in the same class as the old SBs are but probably would get the job done. The 7"x ? mini lathes wont do for an Atlantic's drivers. One of he smal...
by Cary Stewart
Tue Apr 24, 2018 5:32 pm
Forum: General Discussion
Topic: DTI vs DI
Replies: 56
Views: 2410

Re: DTI vs DI

A comment. Starrett Last Word DTIs have a switch on the side which changes the direction of needle rotation. I have a Federal .0001" vertical that I inherited and it also has a switch on it. Some modern DTIs will rotate the needle only one way regardless of the direction of the contact arm movement....
by Cary Stewart
Fri Apr 20, 2018 5:15 pm
Forum: Live Steam
Topic: Railroad Supply American Boilers
Replies: 8
Views: 860

Re: Railroad Supply American Boilers

Marty, Are you using the old RRSC throttle set up? In the original version it worked kind of like a switch. I suggested that the vertical hole in the casting be modified. Where the round hole in the throttle bar started to open to admit steam a triangle or a involute could be made with accustom broa...
by Cary Stewart
Thu Mar 22, 2018 8:24 pm
Forum: General Discussion
Topic: Gage Block Care & Feeding
Replies: 25
Views: 1285

Re: Gage Block Care & Feeding

Related to the comment about gage blocks and other steel pieces growing and shrinking is the following. l read a couple or more years ago that the International Standards Organization has found that the Platinum-Iridium meter bars that from the late 19th century were the absolute standards would wid...
by Cary Stewart
Sun Mar 04, 2018 7:43 pm
Forum: Lathes
Topic: Need a way to turn a 30 tpi screw.
Replies: 89
Views: 3752

Re: Need a way to turn a 30 tpi screw.

For what it is worth. Any Unimat table top lathe with the Thread Cutting attachment and a 30TPI Former and Guide can cut a thread about 1" long on any diameter up to about 1". I checked and both the DB200 (cast iron), SL and SL1000 (die cast) and the Unimat 3/4 had this device as an optional extra. ...
by Cary Stewart
Sun Mar 04, 2018 7:34 pm
Forum: General Discussion
Topic: Old, old machine shop in California, still exists.
Replies: 4
Views: 554

Re: Old, old machine shop in California, still exists.

Many years ago my family and I spent an afternoon going around this facility. It was still operating and offering foundry classes for a price. I talked it over with my wife. She was OK with the idea if we could work it into the budget. NO GO. The whole operation in the shop was powered by a Pelton W...
by Cary Stewart
Thu Mar 01, 2018 7:41 pm
Forum: General Discussion
Topic: Collet Clamping Nut driving me nuts!
Replies: 16
Views: 1210

Re: Collet Clamping Nut driving me nuts!

Well you did get a free one that works like the standard nuts. Do you really need a high-speed friction bearing nut on a 7" X12" lathe? It is a bit of over kill as the highest speed of your spindle is what - about 4000 rpm? A standard nut would have been quite adequate. Rego-Fix has a great reputati...
by Cary Stewart
Thu Mar 01, 2018 7:35 pm
Forum: General Discussion
Topic: Collet Clamping Nut driving me nuts!
Replies: 16
Views: 1210

Re: Collet Clamping Nut driving me nuts!

Hello, I just found my Rego-Fix full line catalog from about 2002. It does list the HK/ER nut. Below is a description with instructions for this nut. "HK/ER HIGH-SPEED FRICTION BEARING CLAMPING NUT" "The HK/ER is a high-speed friction bearing clamping nut designed for heavy duty machining. It is int...
by Cary Stewart
Tue Feb 27, 2018 9:23 pm
Forum: Live Steam
Topic: EARLY 4-6-6-4 CHALLENGER. FRAME
Replies: 38
Views: 2662

Re: EARLY 4-6-6-4 CHALLENGER. FRAME

A locomotive that is in production and has been for over a decade is Jim Kreider's Nickel Plate Bershire 2-8-4 in 1.5" scale. He wanted to cast the whole thing as one bed casting but the cost was way to much to sell. His compromise was to make major parts that would assemble in to a frame that unles...
by Cary Stewart
Fri Feb 02, 2018 5:55 pm
Forum: Live Steam
Topic: Re Gauging to 4 3/4" from 5" gauge.
Replies: 13
Views: 1025

Re: Re Gauging to 4 3/4

For this conversion much depends on the engine and how big the frame or boiler dia. is. My Thunderbolt/Lion, ex the late Bruce Ward, is converted from 5" gage to 4 3/4" gage. The boiler dia. just made it possible. I do not know exactly what was done in the conversion but it worked. The splashers wil...
by Cary Stewart
Tue Jan 16, 2018 6:02 pm
Forum: Riding Scale Railroading
Topic: Surveying techniques?
Replies: 27
Views: 2352

Re: Surveying techniques?

Except for the Smith Valley run the main line curves on LALs track is 60ft radius minimum. A Santa Fe 2-10-4 barely made it around our main line but derailed when it tried the SV line. Think in long term usage and guests engine sizes to determine your minimum radius. By the way. We found many years ...