I was able to remove the smaller supports without the divots! Why didn't I use smaller supports the first time? Mike Redden

To jump off from the prior topic; Engineering characteristics of boxcar ends This other prior topic may interest some https://realstmfc.groups.io/g/main/topic/pratt_vs_howe_boxcar_trusses/17205702 --

On Fri, Dec 9, 2022 at 05:17 PM, David wrote: One place to look is in the trade journals of the time (primarily Railway Mechanical Engineer, but sometimes Railway Age or Railway Review; these are

On Fri, Dec 9, 2022 at 04:51 PM, jace6315 wrote: I except that Dick Dawson will weigh in on this but in short, the AAR manuals are a good place to start to read about the design

50" Viking roof would be either C&NW or one of the AMC roads. I would start with Pere Marquette. David Thompson

One place to look is in the trade journals of the time (primarily Railway Mechanical Engineer, but sometimes Railway Age or Railway Review; these are generally available online for the era of this

I except that Dick Dawson will weigh in on this but in short, the AAR manuals are a good place to start to read about the design requirements. You want the ends to withstand the loads involved, often

A factor in choice of material for making cars was also the length of cars and ease of maintenance. Europe useds wood for car sides and even ends sometimes even now but all these cars are far shorter.

At times, there's also the question of material availiability. Venturing briefly into the modern era, one of my former co-workers, Mike Hall, basically had to design a new fabricated end design when

About the only place where you'll be able to read about the engineering behind freight car construction as it relates to ends, is in assorted early MCBA committee reports. Railroads knew that

RE: GN 15224 I noticed a stencil to the left of the door that reads: "End Lining Not Standard To Car." Comments? Bob Chaparro Hemet, CA

I have read the same statement about the W-corner-post end, that it helped with corner stiffness, but the original reason was mostly to provide a better corner attachment for the inside wood

I just started another print of the press that uses smaller supports in the area that had divots. Hopefully I can remove the supports without taking divots this time. Mike

Tim I bought an Elegoo Saturn for about $500 in late June 2021. It's now selling for $304 on Amazon. Elegoo released the Saturn 2 with an 8K screen vs. 4K, higher resolution and larger build area

Ben I believe your pictures show single door rebuilds of cars originally built with double doors. As for the timeline of when the cars were rebuilt, I don't know

In a word, patent avoidance. If any testing was ever done, and I doubt any direct testing between competing designs ever was, I'd say there was little significant difference between the Dreadnaught,

I think that 1028 is just faded -- all of the cars were painted (and repainted) the same way On 12/8/2022 11:55 PM, B.L. Griffith wrote: -- Tim

Mike very impressive ! how much did you have to invest in a 3-D printer to get that kind of quality, if I may ask ? On 12/9/2022 9:40 AM, mlredden1

Hello everyone, Just wanted to ask if there is anywhere online/book where I could read about the engineering incorporated into boxcar ends (or even roofs)? I'm primarily interested in what made

On 12/9/2022 10:50 AM, Steve and Barb Hile wrote: -- Tim O'Connor Sterling, Massachusetts