Showing posts with label etching. Show all posts
Showing posts with label etching. Show all posts

Tuesday, October 15, 2024

Presentation File from Chicagoland RPM, Oct 10-12 2024

 

As promised at the clinic, here is the file from my presentation about etchings. Note that it does contain some new and updated material from previous iterations. I plan to share an hourlong presentation sometime in the next couple months on a Wednesday evening as part of the Hindsight series (details to follow; to be the first to know, join the Hindsight 20/20 groups.io list.) It will cover the actual process of creating the artwork in far greater detail than I was able to present at Naperville.

Thursday, March 9, 2023

Update on Etchings from Presentation

 During my presentation at the latest Hindsight 20/20, I alluded to the fact that due to the shipping delays in receiving my test etchings due to the Royal Mail hack from late December, I could not inspect and assess what I had received. I spent a few more hours looking at some of the parts, and have a few photos to share.

The first photos are of the ladders for PFE R-40-25/-26 reefers. The primary difference between the two is the -25 class used traditional ladders with treads (rungs) riveted to the ladders stiles while the -26 used Wine-style ladders where the rungs had bends that fit into holes in the stiles, that once attached to the car held the rungs in place. What is displayed here is the -25 riveted style. Compare the prototype photo, above, to the etchings shown below. The sill steps were attached to a bracket that was also integral to the bottom of the ladder stiles, with the entire assembly attached to the bottom face of the side sill in two locations.




The next group of photos are of etchings for a Chicago and North Western PS-1 auto car. Common to all but the earliest PS-1s, that arrangement featured an integral ladder stile, sill step, and bracket attached to the bottom of the side sills, similar to the R-40-25 shown above. [the prototype photo below illustrates this arrangement on a Maine Central PS-1 box car]

There was an interim style of end ladder on PS-1s, with a "jog" in the lower portion of the right stile. Early PS-1s had straight stiles, while later ones had the same "jog," but with two wider bottom rungs, as opposed to one. [note: I could've done a better job bending the little jog to make it straight!]

The last parts I will highlight are two types if zee bars. Most PS-1s had crossmembers that were 4" zee bars. An etching to replicate that is shown in two views. The other simulates a 3" zee bar that will be used to replicate the stringers between the body bolsters and end sills. The photo illustrates the cross section. Etchings such as these have many applications as zee bars were quite common. Until I have more to report...



Wednesday, March 8, 2023

Larger Etching Bending Tool - RP Toolz Piranha

In my presentation about etchings, I mentioned that I was in the market for an etching bending tool with a longer bending edge. In the past, I have used a small "Hold and Fold" from the Small Shop. I first visited their site looking for a larger version of their tool, but found that it has been discontinued. My next stop was UMM-USA where I found just the thing, the RP Toolz "Piranha" 195mm photo etch bending tool. I ordered it ($60.99) and it arrived within a few days. Not only do I love its longer working edge, but I have also found it to have stronger clamping than the Hold and Fold, making it easier to bend some of my recent creations that have long edges, but relatively narrow bits to grab to facilitate bending. The top piece can be unscrewed and rotated 180 degrees, as well, providing some flexibility. I am 100% satisfied with the Piranha. I highly recommend it. If this is too large for your needs, UMM-USA does have other options. Just use the search tool at their site.

In the next couple days, I will share a few updates to etched parts I referenced during the presentation

Tuesday, March 7, 2023

Scratch that Etch presentation

The link to the presentation about creating etchings, "Scratch that Etch," can be found here. I have also uploaded the video of the presentation to youtube at the following link. Enjoy!