Search found 435 matches

by jcbrock
Fri Mar 05, 2021 9:07 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 133
Views: 8181

Re: 3/4" Raritan 2-4-0 build.

What do the drawings call for? My expectation would be it would be a bare whisper, like 0.001" or less. I would not press them with your mill. Your quill is not designed for that kind of force in that direction, while a press is. It might be worth taking to an automotive machine shop if you do not h...
by jcbrock
Sun Feb 28, 2021 11:30 pm
Forum: Live Steam
Topic: Museum of Obsolete Drafting Technology
Replies: 45
Views: 6346

Re: Museum of Obsolete Drafting Technology

Greg_Lewis wrote:
Sun Feb 28, 2021 8:25 pm
When you look at a drawing from 100 years ago you quickly have a lot of respect for the draftsman that made it. I can't imagine getting down to the last line and having the pen blurp ink onto the velum.
Or equally bad, have an engineer stroll in with "sorry old chap, but we have a revision".
by jcbrock
Sun Feb 21, 2021 3:50 pm
Forum: Live Steam
Topic: NJLS 1983
Replies: 27
Views: 1126

Re: NJLS 1983

That's a young Dave S. in the pictures of 774 isn't it?
by jcbrock
Tue Feb 16, 2021 6:59 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 133
Views: 8181

Re: 3/4" Raritan 2-4-0 build.

If you ask here how to turn wheels, 10 guys will tell you at least 12 ways to do it. Dave Sclavi has a good set of YouTube videos, the first one is here: https://www.youtube.com/watch?v=u4_ro19aQZg One thing to think about is how you are going to keep your axle bore perpendicular to your wheel face....
by jcbrock
Mon Feb 08, 2021 5:56 pm
Forum: Build Log
Topic: 1.6" Kerosene Headlight Build"
Replies: 15
Views: 2108

Re: 1.6" Kerosene Headlight Build"

Your vent has a lot more going on than my example. Here, they just bent a sheet over the vent, the sheet being very similar to the outer one but at a 90 degree angle. My example was probably later, and this was a cost-cutting approach deemed 'good enough'.
ventsideview.jpg
ventsideview.jpg (25.79 KiB) Viewed 524 times
by jcbrock
Mon Feb 08, 2021 5:44 pm
Forum: Live Steam
Topic: Could I get some lessons about shopping for a locomotive build?
Replies: 27
Views: 2565

Re: Could I get some lessons about shopping for a locomotive build?

I can find these in the hardware store drawers where you can buy 1 at a time but not the more economical box where it's cheaper per screw. Am I likely to find 4-40 in a box? Whenever I go to the hardware store drawers, it seems like the one thing I want is the one space that's sold out. Sites like ...
by jcbrock
Fri Feb 05, 2021 11:17 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 133
Views: 8181

Re: 3/4" Raritan 2-4-0 build.

Bill, you're correct, Easy-flo 45 does have cadmium. That's what makes it 'Easy'.

https://www.silfos.com/EN/Products/EASY-FLO-45.htm

Harris Safety-Silv 45 does not. That's what makes it 'Safety'.

https://www.harrisproductsgroup.com/en/ ... lv-45.aspx
by jcbrock
Tue Feb 02, 2021 10:13 pm
Forum: Build Log
Topic: 1.6" Kerosene Headlight Build"
Replies: 15
Views: 2108

Re: Kerosene Headlight Chimney

That second headlight is beautifully done, even down to the manufacturer's plate. Here's a full-size one for comparison:
headlight3.jpg
by jcbrock
Sat Jan 30, 2021 8:00 pm
Forum: Build Log
Topic: 3/4" Raritan 2-4-0 build.
Replies: 133
Views: 8181

Re: 3/4" Raritan 2-4-0 build.

You may know this already, but another thing about taps, you are going to want both bottoming taps and then either plug or taper taps. If you're tapping a blind hole, you start with the plug or taper tap and then finish the last few turns with the bottoming tap. I frequently back off to free up chip...
by jcbrock
Fri Jan 01, 2021 5:21 pm
Forum: Live Steam
Topic: Condensation
Replies: 20
Views: 3286

Re: Condensation

Burping the engine was one of my fathers favorite parts about being an engineer at the Billy Jones Wild Cat railroad back in the 1980's. Jim and ...Diane? You guys are right about getting the cylinders warm but even after that, maybe it depends on the engine, there was always some goop at the botto...
by jcbrock
Fri Jan 01, 2021 1:41 pm
Forum: Live Steam
Topic: Condensation
Replies: 20
Views: 3286

Re: Condensation

1. Fire up 2. Move off bay to running line with cylinder cocks open. 3. Slightly apply brakes 4. Put valve gear in reverse 5. Open the throttle quickly 6. Apply the brakes fully and shut the throttle 7. Watch cloud of goop fall onto track in front of engine 8. Repeat 3 through 7 until the exhaust dr...
by jcbrock
Fri Jan 01, 2021 1:21 pm
Forum: Live Steam Marketplace
Topic: Wanted: Safety Valves (2) 5/16 - 27 tpi
Replies: 11
Views: 1750

Re: Wanted: Safety Valves (2) 5/16 - 27 tpi

Take a look at these from Eccentric Engineer.

https://www.eccentricengineer.com/safet ... ale-safety

They'll be a little big, but better than anything else out there (edit) for 3/4" scale.