The Home Machinist!

If I remember correctly, the centers on the originals were cast. Maybe get a piece of pipe and find someone with a CNC lathe to turn the shape. This is why I went with a Radley-Hunter on my shay, cones are much easier! That being said, I had the center cone 3D printed from Shapeways and can give you...

I might be interested in a pair for a 2.5in scale bobber caboose, but definitely want to see at least an estimated price and some dimensions.

Howard Gorin wrote: ↑

Sun Nov 01, 2020 2:47 pm

Roll models received the large scale products.
Also the rail business
Regards, HG

Good to know! I didn’t realize they didn’t take the 1.5in scale and smaller equipment. But makes sense since they specialize in 2.5in+

Weren’t they bought by Roll Models Inc? I think they absorbed their product line, at least the narrow gauge stuff

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

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...

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...

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

Anybody know what the ratios in McMasters brass fittings are?

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...

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...

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...