Search found 792 matches

by rkcarguy
Mon Sep 24, 2018 12:41 am
Forum: Riding Scale Railroading
Topic: New and shiny or weathered?
Replies: 9
Views: 438

Re: New and shiny or weathered?

I've kind of decided what I'm going to do, or let the weather do for me, as one of you put it. I was on "down time" for the finger to heal after surgery and thought it a good question to ask of you guys. I'm thinking about painting the trucks (again) after assembly and then hit them with a little ru...
by rkcarguy
Mon Sep 24, 2018 12:21 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 323
Views: 31072

Re: 12" working railroad

Well the finger has almost finished healing, it just has a little spot in the end of it about 3/32" round that needs to heal up. I think Tuesday I'm going to get back into building things. I visited my dad's place today and found the spare cylinder head we rebuilt for the boats 4-cylinder red-block ...
by rkcarguy
Wed Sep 19, 2018 1:19 pm
Forum: Riding Scale Railroading
Topic: New and shiny or weathered?
Replies: 9
Views: 438

New and shiny or weathered?

I'm sure this post will develop into quite a controversy, but what's your take on large scale modeling and weathering?
Real trains are rusty, dirty, greasy, etc. I always weathered my HO scale equipment.

I have my popcorn at the ready:)
by rkcarguy
Wed Sep 19, 2018 11:59 am
Forum: Live Steam
Topic: Fiberglass Tender Tank Help
Replies: 6
Views: 381

Re: Fiberglass Tender Tank Help

Ok, so you have a steel plate to work with. What I like to do is permanently install the screws into one part or another with JB weld or PC7 or loctite, or solder them if that can be heated(probably not), then you have studs sticking out that don't leak and you can cut a neoprene gasket you can reus...
by rkcarguy
Wed Sep 19, 2018 10:27 am
Forum: Grand Scale Railroading
Topic: 12" Guage Wheel Standard
Replies: 24
Views: 573

Re: 12" Guage Wheel Standard

^^^ It probably cuts really nice. They make 1/4" round carbide inserts and holders, I've been watching ebay for one to come up.
My thought was to rough the wheels within about .030" and then finish cut them with that in one pass. Carbide likes to be "loaded".
by rkcarguy
Tue Sep 18, 2018 9:59 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 323
Views: 31072

Re: 12" working railroad

So I heard back from the engineer who just ran a free "napkin calculation" on my bridge. C12's vertical with C4 or 4" HSS cross-members is supposed to be good for a 5 ton live load at a minimum :D
by rkcarguy
Tue Sep 18, 2018 6:37 pm
Forum: Live Steam
Topic: WHO NEEDS CNC?
Replies: 40
Views: 1881

Re: WHO NEEDS CNC?

That's really cool! I ran a turret lathe off and on at my 2nd workplace, the thing was awesome for producing short runs of lathe parts(I made brass NPT nuts of various types and sizes for heat exchangers), and it was fun to run. On ours the drill carriage had stops to each position but we had to use...
by rkcarguy
Tue Sep 18, 2018 6:27 pm
Forum: Live Steam
Topic: Fiberglass Tender Tank Help
Replies: 6
Views: 381

Re: Fiberglass Tender Tank Help

I know in the boat repair world, epoxy resins (50/50 mix) will adhere well as long as the area is roughed up, but poly resins can have issues adhering to a repair. I would think that you could bed in some plastic pipe fittings or plastic plate to give you something to attach to. You may have to get ...
by rkcarguy
Tue Sep 18, 2018 4:22 pm
Forum: Riding Scale Railroading
Topic: LOUD diesel horns?
Replies: 17
Views: 2688

Re: LOUD diesel horns?

Some of the Baldwin S-12's have a long single tone horn on them that was reported to be 190hz. Measuring off of the Athearn model, it would be about 30" long in full scale, it's 5" long for my model at 1/6th scale. I have found a bicycle horn I'm going to cut up and use for the cosmetic side, but ha...
by rkcarguy
Mon Sep 17, 2018 10:18 am
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 155
Views: 19653

Re: Woodinville Shops

Looking really good Glenn! I wish I could have made it to the open house.
by rkcarguy
Sun Sep 16, 2018 3:21 am
Forum: Grand Scale Railroading
Topic: 12" Guage Wheel Standard
Replies: 24
Views: 573

Re: 12" Guage Wheel Standard

Hello All, I got a chance to measure my Ottaway flange radius on the drivers, and tender wheels today. Also the drivers on my 1904 Campbell 4-4-0. Also I did a quick measurement of a piece of 12# rail from my rail storage yard. Methodology: used a set of machinist radius gauges to find the best fit...
by rkcarguy
Sat Sep 15, 2018 1:27 am
Forum: Grand Scale Railroading
Topic: 12" Guage Wheel Standard
Replies: 24
Views: 573

Re: 12" Guage Wheel Standard

Good idea on the axle size Glenn, 1/2" is a joke. The interesting part is, that the shear strength of 1/2" steel is plenty strong for quite a lot of load so I wouldn't worry about breakage between the wheel and bearing, but deflection and bending of the axle between the wheels is definitely an issue...