Search found 360 matches

by rkcarguy
Fri Jan 19, 2018 11:28 am
Forum: Riding Scale Railroading
Topic: Baldwin S12, what are these?
Replies: 6
Views: 311

Re: Baldwin S12, what are these?

Thank you for the info. I was noticing it was missing from my HO scale "prototype" as well as most S12 models out there. In my scale, there's no reason not to include them somehow. That is going to be about 3/8" round in my scale, I'll see if I can come up with something. Maybe a short chunk of alum...
by rkcarguy
Thu Jan 18, 2018 12:14 pm
Forum: Riding Scale Railroading
Topic: Surveying techniques?
Replies: 27
Views: 955

Re: Surveying techniques?

What gage are you thinking of going with? 2-1/2" goes well with 12", but I may be bias:) A wider gage allows more stability, more weight capacity, and in my opinion, more space inside a wide locomotive to "run what you brung" as far as powering it if you are DIY type guy. My S12 is going to be a gas...
by rkcarguy
Thu Jan 18, 2018 1:31 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 146
Views: 8202

Re: 12" working railroad

S12body.jpg S12steps.jpg S12stepscrews.jpg Here is the step boxes. These aren't that big but sure took along time to make. As these form an inside corner, there will be no access once they are attached to the body so I had to file all the rivets flush and get all the edges broken beforehand. I also...
by rkcarguy
Wed Jan 17, 2018 7:48 pm
Forum: Riding Scale Railroading
Topic: Surveying techniques?
Replies: 27
Views: 955

Re: Surveying techniques?

I'm looking at 2.5-3% grades on my RR, and I'm more worried about brakes than I am getting up the hill. Thankfully, I'll be coming up hill with the firewood and going back down empty, but still plan brakes on all cars. Another question to ask, is steam or diesel? Diesels have more driven wheels, for...
by rkcarguy
Wed Jan 17, 2018 3:59 pm
Forum: Live Steam
Topic: Tender bladder
Replies: 11
Views: 733

Re: Tender bladder

I 2nd the plastic tank idea. There is a lot of options out there and they are fairly inexpensive. If you have access to pipe taps, it's very easy to drill and tap holes for the fittings where you want them. I put a 13 gallon grey water tank in my boat a few years ago, it was less than $100. http://w...
by rkcarguy
Wed Jan 17, 2018 3:34 pm
Forum: Live Steam
Topic: Boiler stays and heat expansion
Replies: 17
Views: 611

Re: Boiler stays and heat expansion

Asme code calls out A36 to be used for stay material because it is soft and is does have give to it. John B John, Most A36 is dual spec these days and meets Grade 50 requirements, I submit dual spec certs all the time for projects. They also make pipe sized tube to the A500-grade-B standards that i...
by rkcarguy
Tue Jan 16, 2018 10:29 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 682
Views: 72311

Re: Building the 2.5" Scale Shay

Im a little dubious of using loctite on the crankshaft. Its one thing for wheels on axles but theres a lot of torque passing through the crank. And at this point I've got it fixed permanently. I follow rkcarguy's tips and did four quick tacks at 180 amps and the shaft is still within tolerance and ...
by rkcarguy
Tue Jan 16, 2018 10:28 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 682
Views: 72311

Re: Building the 2.5" Scale Shay

Green Loctite "sleeve retainer" might work, but once that is in there, there will be no welding unless it's pressed apart and well cleaned. On top of that, with something reciprocating, there is no guarantee it will hold. I've had good look using it for stationary items...live a sleeve for example l...
by rkcarguy
Tue Jan 16, 2018 6:12 pm
Forum: Grand Scale Railroading
Topic: 12" gage truck sides
Replies: 41
Views: 1354

Re: 12" gage truck sides

I'm getting closer to assembling the first set. I was looking at some different options for springs and bump stops, and think I found a solution. Energy suspension makes a universal conical bump stop that is 1-1/2" tall and 1-1/2" round with a 3/8" stud in it. I'm thinking this can be bracketed from...
by rkcarguy
Tue Jan 16, 2018 3:58 pm
Forum: Riding Scale Railroading
Topic: Surveying techniques?
Replies: 27
Views: 955

Re: Surveying techniques?

^^^ This is true. My re-build of my HO scale train set as a kid went onto a 6' wide table, so I could do a 32" radius. The leading wheel on my SD40-2's would always hop the rails at any joiner in a curve when I was stuck with a 48" wide table(22" radius). Incidentally the 32" radius is about 40' in ...
by rkcarguy
Tue Jan 16, 2018 2:07 pm
Forum: Riding Scale Railroading
Topic: Surveying techniques?
Replies: 27
Views: 955

Re: Surveying techniques?

If I remember correctly, you'll want 40' radius curves to be able to accommodate 6 axle diesels and larger steamers? With 90 acres, you've got some serious space, so no reason to limit yourself to short wheelbase trains. What you can do as a preliminary "survey", is to use google earth. You can draw...
by rkcarguy
Tue Jan 16, 2018 12:22 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 682
Views: 72311

Re: Building the 2.5" Scale Shay

Exactly! The first years I started welding, I was always cautious with applying heat and then by the end of the weld the part would get too hot sometimes because I was heating the part too long. Once I got more confident, I ran the amperage as hot as the torch will take to get the puddle started ASA...