Search found 367 matches

by johnpenn74
Tue Mar 06, 2012 2:04 pm
Forum: Live Steam
Topic: Need Some Help
Replies: 4
Views: 1207

Re: Need Some Help

A friend of mine made his by milling it down from round. Go to Daveley.net I think there is an explanation of how he did it there.

JP
by johnpenn74
Sun Mar 04, 2012 11:39 pm
Forum: Live Steam
Topic: Duplex steel (grade 2205) for Steam loco boilers
Replies: 54
Views: 8994

Re: Duplex steel (grade 2205) for Steam loco boilers

Does anyone know what material Art Olds used for his 2-8-0 boiler? Engine is now owned by Bill Bryan of Georgia. I Swear he once told me is was scrap drops that came off of some of the ships in Pensacola. It was something exotic.
Any ideas?
Gene Fontain might know... Is he still around?

JP
by johnpenn74
Wed Jan 25, 2012 1:56 am
Forum: Live Steam
Topic: Cylinder studs vs. cap srews
Replies: 21
Views: 2888

Re: Cylinder studs vs. cap srews

Cylinder studs vs. cap srews Another item to remember is alignment issues. I am by no means advocating using a threaded fastener (stud, cap or otherwies) as an alignment mechanism (Henrickson's Jig and Fixture Design, would tell you this is a no no). However, imagine if you will trying to pick up a ...
by johnpenn74
Mon Jan 23, 2012 1:39 pm
Forum: Live Steam
Topic: Articulated Design Question - Front engine weight
Replies: 14
Views: 2716

Re: Articulated Design Question - Front engine weight

Check this out. Some one already got there in 1" scale!

Caption Reads
"D&SL 2-6-6-0 #217
Working 1" scale models of prototype equipment taken in 1998 at the Fall meet. This is with yours truly at the throttle! The locomotive was finished and owned by Bruce Saylor of Pennsylvania."
by johnpenn74
Fri Jan 20, 2012 10:59 am
Forum: Live Steam
Topic: Allen Mogul Project - Down to Details
Replies: 125
Views: 27015

Re: New to the Forums - My Project

Maybe its a petticote issue... Somewhere I read that the petticote determines which flues the draft is predominantly forced through. The higher it is, the more draft is rolling through top flues, the lower it is, more draft through the bottom flues. Perhaps the petticote is too low. Might even have ...
by johnpenn74
Thu Jan 19, 2012 12:26 pm
Forum: Live Steam
Topic: Allen Mogul Project - Down to Details
Replies: 125
Views: 27015

Re: New to the Forums - My Project

John S, Consider the below comment from the thread about large flue size. It may be worth while to plug you lower flues. If memory serves, the Mcdonough 0-6-0 at SERM had many patches on the bottom of its boiler barrell. I wonder if this was from a lack from washout provision and the boiler is strai...
by johnpenn74
Thu Jan 19, 2012 12:13 pm
Forum: Live Steam
Topic: Steam Turret Question
Replies: 7
Views: 1794

Re: Steam Turret Question

Steam Turret Question

I have seen people do the same thing on the mich cal shay also. That is tap appliances turret and throttle from this dome (one on top of the t boiler) Little bit of a fudge, but deffinately makes the build and maintenance easier.

JP
by johnpenn74
Thu Jan 19, 2012 11:56 am
Forum: Live Steam
Topic: Articulated Design Question - Front engine weight
Replies: 14
Views: 2716

Re: Articulated Design Question - Front engine weight

Good eye Doug, What started this whole thing is the work done by Konrad in F Guage on Cumberland Engineering web site http://www.cumberlandmodelengineering.com/KonradGallery.html The Denver and Salt Lake 2-6-6-0 makes for a nice small articulated that would be capable to run on most any tracks. And ...
by johnpenn74
Wed Jan 18, 2012 11:04 am
Forum: Live Steam
Topic: Articulated Design Question - Front engine weight
Replies: 14
Views: 2716

Articulated Design Question - Front engine weight

Articulated Design Question - Front engine weight I recently got interested in a 2-6-6-0 prototype and got to wondering about the lead engine weight. How is weight of the boiler transfered to the front engine on an articulated? That is, if you have a huge boiler, the only fixed connection is at the ...
by johnpenn74
Wed Jan 18, 2012 10:56 am
Forum: Live Steam
Topic: Steam Turret Question
Replies: 7
Views: 1794

Re: Steam Turret Question

Steam Turret dry pipe Don't forget the old cheat of running the turret dry pipe outside of the boiler from the back of the dome through the cab wall. I am not sure if it is original, but RGS 20 has this steam lead on it. Not as pretty, but should be really easy to implement. Just tap the dome, could...
by johnpenn74
Tue Jan 17, 2012 3:30 pm
Forum: Live Steam
Topic: Feed Rate
Replies: 16
Views: 2019

Re: Feed Rate

Feed Rate Stop guessing. Machine work is not guess work, nor is it alchemy. If you need a decent determination/start point of speeds and feeds there is an endless pile of reference material available. Industrial tooling metalurgy hasn't really changed much over the last 100 years; High speed steel a...
by johnpenn74
Tue Jan 17, 2012 3:04 pm
Forum: Live Steam
Topic: How Do You Calculate Connecting Rod Length?
Replies: 33
Views: 8762

Re: How Do You Calculate Connecting Rod Length?

Rod Length A longer rod is better, right? maybe not. Many mikados / consolidations have the main rod connection on the third driving axle. This far back, should reduce the angle of the main rod from the cylinder centerline, thus increasing the verticle the force applied to the crosshead guides. Reme...