Scotty Mogul: Difference between revisions
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: Unfortunately, Paul's computer crashed and wiped out his CAD files for the locomotive. I do have all of his paper drawings scanned, and I have sent them to the [[IBLS]] so that they can post them. Unfortunately, the drawings for the tender didn't get saved or printed, except for the arrangement for the mechanical brake system that Paul designed. It has shoes that press against the backs of the tender wheels. It's simple and works great. | : Unfortunately, Paul's computer crashed and wiped out his CAD files for the locomotive. I do have all of his paper drawings scanned, and I have sent them to the [[IBLS]] so that they can post them. Unfortunately, the drawings for the tender didn't get saved or printed, except for the arrangement for the mechanical brake system that Paul designed. It has shoes that press against the backs of the tender wheels. It's simple and works great. | ||
== Construction == | |||
[https://www.chaski.org/homemachinist/viewtopic.php?f=8&t=109947 Scott Reedy wrote]: | |||
: If you want to build this locomotive, then go ahead and start. I don't think you need these castings at all, other than the wheels. The whole set of castings is nothing more than 2 cylinders, 6 drive wheels, and 2 lead truck wheels. Everything else is fabricated. | |||
: If you can't find the castings, you could machine the cylinders out of a solid block of cast iron, you could make the lead truck wheels from solid steel and either cut the holes/slots in them or leave them solid. Railroad Supply has 6 inch drive wheel castings for their 0-4-0 that look pretty close and would work fine for this locomotive. They are available in heavy and light versions, and the light version would be pretty close to what these castings are like. | |||
== Drawings == | == Drawings == | ||
Revision as of 13:20, 20 November 2020
1.5 inch scale Light Mogul. The model has been described as small, compact, with plenty of power.
Specifications
- Bore: 1-3/4 inch
- Stroke: 2-3/4 inch
- Drive wheel diameter: 6 inches
- Lead truck wheel diameter: 3 inches
- Boiler diameter: 7 inches ID
- Overall length: 44 inches
- Weight: Approximately 300 pounds
History
- Paul Brien of Nashville, TN drew up the Scotty Mogul in CAD and did a lot of redesign to it. The redesign wasn't to change any of the cosmetics, it was to beef up a few areas, especially the rods and crosshead support members, etc. The original rods were thinner, and Paul redesigned them to be 1/4 inch thickness, among a few other small things. He made detailed drawings, and they are absolutely great, even down to the boiler plates and how they have to be cut so that the bends will come out properly.
- I actually have an original set of the Scotty Mogul drawings, but I wouldn't use them. I would use the updated Paul Brien drawings or nothing. I have seen no fewer than 4 of these Moguls built using Paul's drawings and they all were great steamers and runners, good pullers for their size, sure footed and not prone to derailing.
- Unfortunately, Paul's computer crashed and wiped out his CAD files for the locomotive. I do have all of his paper drawings scanned, and I have sent them to the IBLS so that they can post them. Unfortunately, the drawings for the tender didn't get saved or printed, except for the arrangement for the mechanical brake system that Paul designed. It has shoes that press against the backs of the tender wheels. It's simple and works great.
Construction
- If you want to build this locomotive, then go ahead and start. I don't think you need these castings at all, other than the wheels. The whole set of castings is nothing more than 2 cylinders, 6 drive wheels, and 2 lead truck wheels. Everything else is fabricated.
- If you can't find the castings, you could machine the cylinders out of a solid block of cast iron, you could make the lead truck wheels from solid steel and either cut the holes/slots in them or leave them solid. Railroad Supply has 6 inch drive wheel castings for their 0-4-0 that look pretty close and would work fine for this locomotive. They are available in heavy and light versions, and the light version would be pretty close to what these castings are like.
Drawings
Drawings can be downloaded from here: IBLS - Scotty Mogul Drawings. All drawings are in PDF format.
Drawing Index for 1.5 inch scale "Scotty" Light Mogul
