Search found 847 matches

by Soot n' Cinders
Mon Aug 31, 2020 5:18 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 865
Views: 233112

Re: Building the 2.5" Scale Shay

Glenn Brooks wrote:
Mon Aug 31, 2020 12:01 am
Tristan, Iam researching a different gauge track and wheel set for drives and rolling stock.

Curious what size diameter drives you are using for your 2.5” scale Shay?

Thanks
Glenn
Glenn. The drivers on the shay are 6.125in in diameter
by Soot n' Cinders
Mon Aug 24, 2020 8:34 am
Forum: Live Steam Marketplace
Topic: New boiler treatment on the market.
Replies: 10
Views: 1378

Re: New boiler treatment on the market.

Interesting, so its a tannin product basically. Tannins are an interesting compound since they easily convert red rust to the more stable black rust, which is great for our boilers. The one issue Id run into with the product is the fact they use sodium hydroxide, or lye, as the pH buffer. I tried us...
by Soot n' Cinders
Sun Aug 23, 2020 1:13 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 865
Views: 233112

Re: Building the 2.5" Scale Shay

Well, rebuild is well underway. The new shaft is complete and straight within a half a thousandth. The chrome plated shaft is really really hard. I burned up 2 corners on my carbide insert turning the shoulders. I figure if it’s that hard to machine it’ll be really hard to wear. C7383CA3-BB21-4CA6-9...
by Soot n' Cinders
Fri Aug 14, 2020 1:12 pm
Forum: Live Steam Marketplace
Topic: Flashers R Us
Replies: 10
Views: 1999

Re: Flashers R Us

I dont think it has been picked up. The owner passed late last year and then his wife passed early this year. So everything is in limbo with their kids right now as far as I know
by Soot n' Cinders
Sat Aug 08, 2020 7:30 pm
Forum: Live Steam
Topic: Boilers and anodes
Replies: 22
Views: 2912

Re: Boilers and anodes

Anybody know what the ratios in McMasters brass fittings are?
by Soot n' Cinders
Sat Aug 08, 2020 1:36 pm
Forum: Live Steam
Topic: Steam Age Boilers
Replies: 15
Views: 2461

Re: Steam Age Boilers

A full bill of materials usually means they are trying to certify the boiler for commercial operation. Different certification process than hobby boilers - usually. True. But if they were going for a commercial certification wouldn’t they need an S stamp boiler? An S stamp boiler would already have...
by Soot n' Cinders
Sat Aug 08, 2020 7:55 am
Forum: Live Steam
Topic: Steam Age Boilers
Replies: 15
Views: 2461

Re: Steam Age Boilers

Surely the state inspectors office can inspect a miniature boiler without a full bill of materials for the boiler. There’s so many of these little boilers out there that were built at home, or like yours have changed hands too much and the paperwork lost. I know for Georgia, they do a visual inspect...
by Soot n' Cinders
Thu Aug 06, 2020 7:56 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 865
Views: 233112

Re: Building the 2.5" Scale Shay

Yes, we will be pouring around the actual crankshaft, after coating it in carbon and heating everything with BIG torches. It would be SO much simpler to pour a block and machine it to spec. But the engine-side bearing gets poured in the actual engine frame. On a 45* angle, too. Way too big for us t...
by Soot n' Cinders
Thu Aug 06, 2020 2:12 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 865
Views: 233112

Re: Building the 2.5" Scale Shay

Good fortune on the Babbitt pour. I just received 22 lbs of the same Babbitt: RotoNickel 4X Grade 2 alloy. We will soon be pouring two new crankshaft bearings (3" diameter) for a 10 ton steam traction engine. Remember that this grade of Babbitt has a higher melting temperature of about 460 F. and a...
by Soot n' Cinders
Wed Aug 05, 2020 9:45 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 865
Views: 233112

Re: Building the 2.5" Scale Shay

Well, 3 of the 5 shafts have been turned for the new crankshaft. This chrome plated rod is tough stuff! I have to skim it with a carbide bit almost like getting under the skin of an iron casting. But even once Im under the chrome the steel is still plenty hard, about 25C Rockwell. The carbide cutter...
by Soot n' Cinders
Mon Aug 03, 2020 3:28 pm
Forum: Live Steam
Topic: Air brakes
Replies: 12
Views: 2435

Re: Air brakes

A simple safety valve would be the simplest solution I think. It’d automatically relieve any excess pressure and seal on its own when needed. The downside like you said would be the excess back pressure robbing the locomotive of power. A diverter valve, such as a 3 way ball valve would do well also ...
by Soot n' Cinders
Mon Jul 27, 2020 11:25 am
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 865
Views: 233112

Re: Building the 2.5" Scale Shay

One option I’ve considered is machining out the existing blocks and soldering in commercial bushings to be machined off into split bearings. Interesting idea Tristan. This would be by far the easiest/cheapest solution, so it probably won't work. Lol! I like your logic. Definitely shows you’ve been ...