Search found 1137 matches

by rkcarguy
Fri Jun 14, 2019 6:08 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 800
Views: 132420

Re: Building the 2.5" Scale Shay

My workplace has a piping division, and there is a pretty particular method used to wrap pipes that are being buried in the ground that they don't want to rust out or freeze. I've seen it done, and they use some sort of mastic like black goo, cloth, and more goo which provides an insulated waterproo...
by rkcarguy
Thu Jun 13, 2019 10:44 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

The riding car wheel sets are ready for final turning. I drew up a quick set of parts for a truing stand that I had laser cut with my brake parts, it worked good getting the side to side wobble down to .010" or less. Not acceptable for a locomotive, but for rolling stock it will do. When and if you ...
by rkcarguy
Thu Jun 13, 2019 12:15 am
Forum: Build Log
Topic: Building a Veranda
Replies: 37
Views: 10452

Re: Building a Veranda

New shop and new toys/tools to go in it, awesome!
by rkcarguy
Tue Jun 11, 2019 3:19 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

brakeparts.jpg Here's a picture of the brake shoe parts. These are like backwards drum brakes, where they will lie in pairs between the wheels and ride on slices of 4" pipe I welded behind one wheel on each axle. The convex parts of the back of the shoes will rub on the bolster and acts as stops wh...
by rkcarguy
Tue Jun 11, 2019 10:32 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

I'm slowly getting the wheels trued up within reason on the axles, and got all the brake shoe parts ran through the laser yesterday. I also drew up some simple parts for a wheelset truing stand that I had laser cut, basically a pair of stands that take two ball bearings each with a dip between them ...
by rkcarguy
Mon Jun 10, 2019 10:18 am
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 204
Views: 42905

Re: Woodinville Shops

Glenn, when I need something like that I've been getting sheet from Amazon and then cutting my circle with a hole saw. If you need a "Custom" diameter, you can drill a hole in a piece of flat stock and clamp it to your belt sander table, and then pin the center and spin it. I've worked with a fair a...
by rkcarguy
Sat Jun 08, 2019 3:32 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

I appreciate the kudo's Harold. I am self taught in welding, started my career as a machinist and my interest in cars led me to needing to learn to weld. I electrocuted myself many times and snubbed the tungsten into the weld I don't know how many times haha. I think the best advice I can give with ...
by rkcarguy
Fri Jun 07, 2019 12:34 pm
Forum: Riding Scale Railroading
Topic: Signal Complexity
Replies: 76
Views: 14759

Re: Signal Complexity

Looks good John! What are the buckets for? I'll add that I had some conversations regarding the block sensing and leakage between the rails in wet conditions. Due to the variances in these factors from moisture to tie material type, distance between rails and length of the blocks, the detection circ...
by rkcarguy
Fri Jun 07, 2019 11:45 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

Harold, could I use hot roll mild steel and turn the ends between centers for the axles for my future flat cars? We have some 1-1/2" round hot roll remnants left over from some heavy custom railing we built for a parking garage entry/exit ramp. I'd simply turn each end down to 1", heat the wheels an...
by rkcarguy
Fri Jun 07, 2019 10:17 am
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

What I'm doing is just little quick fusion welds with the TIG to keep things from moving, doesn't build hardly any heat. It's a trick I've used for years, you can't loiter though. Punch it, wet out about three little puddles and then kill it, but let your after flow gas continue to flow onto the wel...
by rkcarguy
Thu Jun 06, 2019 4:29 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

Axle material is stressproof steel. It has that corkscrew finish on it, I thought it would be pretty good stuff.
by rkcarguy
Thu Jun 06, 2019 3:55 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 493
Views: 73845

Re: 12" working railroad

That's why I'm starting on the riding car wheelsets first as they aren't super important like the locomotive wheelsets. I didn't use heat, I should probably heat up the wheels and then shrink them on and provide a shoulder for them to stop against. I'm committed to the 1" size because I've already g...