Search found 117 matches

by optigman
Sat Dec 19, 2020 1:00 am
Forum: Live Steam Marketplace
Topic: 1.6” Nathan 1918A’s are in stock!
Replies: 5
Views: 881

Re: 1.6” Nathan 1918A’s are in stock!

Remarkable! How fortunate is the live steam fraternity to have such a dedicated supplier to the hobby! The engineering, workmanship and castings are exceptional. Absolute perfection. Thank You.
by optigman
Sat Nov 07, 2020 2:58 am
Forum: Live Steam
Topic: Dome Patterns
Replies: 20
Views: 8602

Re: Dome Patterns

Can't say I agree that castings come out of the mold rough. Depends on how well the pattern is made and how the mold is rammed and poured. Something is wrong if your castings are not coming out nice. Don't believe me then take a quick peek at any old caboose stove. I'm sure that with modern technics...
by optigman
Sun Sep 06, 2020 11:13 pm
Forum: Live Steam Marketplace
Topic: WTB: Looking for a reflector for Mosley Pyle National Headlight
Replies: 9
Views: 2518

Re: WTB: Looking for a reflector for Mosley Pyle National Headlight

Jack Bodenmann can make one for you if you can't track one down.
by optigman
Tue Jul 14, 2020 10:00 pm
Forum: Live Steam
Topic: Bronze vs. Phosphor Bronze Identification
Replies: 13
Views: 3883

Re: Bronze vs. Phosphor Bronze Identification

I would comment but fear my post would be deleted. Censorship is alive and well in the USA.
by optigman
Fri May 29, 2020 11:45 pm
Forum: Live Steam
Topic: gasket material
Replies: 21
Views: 5824

Re: gasket material

We too use soft copper gaskets on certain flange types of high vacuum. Vacuum only has to seal up to atmosphere which is 15psi / 760tor. That being said soft copper works exceptionally for steam sealing although the seal surfaces should be narrow if possible like plumbing seats against the bib washe...
by optigman
Sun Mar 22, 2020 8:41 pm
Forum: Live Steam
Topic: Core Boxes: Why were they usually made before the pattern?
Replies: 9
Views: 3884

Re: Core Boxes: Why were they usually made before the pattern?

Cover core patterns were the most common type that you would build the core box around the pattern and then add the metal thickness to all surfaces in the box. This assured a perfect uniform metal thickness. At this point either the pattern or the core box could be worked to completion. Type of patt...
by optigman
Fri Feb 28, 2020 9:56 pm
Forum: Live Steam
Topic: Looking for input
Replies: 12
Views: 5830

Re: Looking for input

Roger Goldmann of Live Steam Locomotives has a long and short frame Baker gear as well.
by optigman
Fri Feb 21, 2020 1:09 am
Forum: Live Steam
Topic: Eccentric Engineer update
Replies: 2
Views: 1842

Re: Eccentric Engineer update

All the best to you and hoping LA / OC is going to be everything you could want or need in progressing and expanding. Keep up the good work and hope to see you at some of the local steam clubs in the near future. Richard
by optigman
Sun Jan 12, 2020 10:40 pm
Forum: Live Steam
Topic: Laying out rectangular cores on foundry pattern
Replies: 16
Views: 5280

Re: Laying out rectangular cores on foundry pattern

Iron shrink is 1/8" per foot or .010" per inch. Ductile Iron depends on if mold is green sand or hard sand. Hard sand mold ductile iron shrink is 1/16" per foot or .005" per inch. Green sand mold ductile iron make standard rule / no added shrink. Every dimension on the drawing should have shrink app...
by optigman
Wed Jan 08, 2020 8:59 pm
Forum: Live Steam
Topic: Steam Locomotive model drawings
Replies: 65
Views: 27120

Re: Steam Locomotive model drawings

Looks like Roger Goldmann at Live Steam Locomotives and Jim Kreider got omitted from the list of suppliers. Roger offers 4 models. 2-8-0 Consolidation. USRA Pacific. USRA 0-6-0 Switcher. Also the UP Challenger. Jim Kreider is famous for his 2-8-4 Nickel Plate Berkshire.
by optigman
Sat Nov 09, 2019 1:09 am
Forum: Live Steam
Topic: Bagley burner install
Replies: 46
Views: 22663

Re: Bagley burner install

McMaster Carr. Glass. Cutter. Square section o-rings. 1 stop shopping. I like the red lined glass they offer.