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          F7 A #62
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            Mechanism Overview
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    Workshop, Tools, CNC, Casting

 

WM #62 F7A from Highliners Kit - White Metal and Etched Body Details

It has been a while since I last updated the section on this project. Finally, some more progress! Click on any of the images below to see a larger version.

Draft Gear - Front

The piece that made me set this project aside for so long was the Details West front draft gear casting. It didn't fit well and also required messing around with two part epoxy to install it. Once the model went in my wall of shame, it was quite a while before I decided to pull it back out and work on it again.

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Front Draft Gear Photo taken by Pete Brown on March 6, 2005
I cemented the casting in place with Cyanopoxy. This was the first time I tried that product out, and all I can say is "WOW!". Seriously, it may be expensive, but it holds and works like nothing I've ever seen before. For example. when I was trying to fit the frame and this front draft gear box in place, I got the frame snagged on the casting (grumble!). The casting held in place, but the glue joint between the pilot and the body casting itself came loose, as the only way to get the frame out was the stress the pilot out of the way. The Cyanopoxy white-metal to plastic joint was stronger than the Plastruct cement plastic-to-plastic joint. I did fit the pilot back in place afterwards and glued it with Cyanopoxy.

In this photo you can also see that I drilled the class light holes unevenly. I used the template, but I think the problem actually stems from uneven placement of the numberboards themselves. I'll pay more attention to this on the next model, as this is very visible from a straight front-on shot.

 

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Filed Away Photo taken by Pete Brown on March 6, 2005

Back to the task at hand. Installing the front draft gear box in the Highliner shell required several modifications:

  • Cutting off the top detail of the draft gear box. The fit of the Athearn frame made it difficult to impossible to keep that in place. However, since I later filed the frame itself, it may have been possible to keep that in place.
  • Cutting the pins off of the casting and filing them smooth. I filed those sides so they would snugly fit the smooth curve of the inside of the pilot.
  • Filing down of the back of the draft gear casting. Yes, the Cyanopoxy held while I filed the heck out of the back of that piece. Amazing that stuff.
  • Filing the front of the Athearn Genesis frame. I filed it until I just started to get into the locating pin in the coupler attachment area. The filing is rough, but gets the job done. I'll paint it back later. I highly recommend you do this filing early on while you have the motor and trucks off of the frame.

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Filed Frame Photo taken by Pete Brown on March 6, 2005

In the end, this was probably one of the most difficult pieces to install and fit on the body. It is definitely visible from the front of the locomotive right now. We'll see how it looks once everything is painted up, and determine if the effort is worth it.

 

 

 

 

 

Draft Gear and Backup Light - Rear

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Rear Draft Gear Photo taken by Pete Brown on March 6, 2005

The rear draft gear is much easier to install. Like the front draft gear, you need to test it it with the coupler boxes in place before committing to a final position. Also like the front draft gear, I used Cyanopoxy to install the piece.

The Highliner shell is pretty thin, so you need to add a couple small styrene shims to the back in order to provide enough thickness to drill the pin holes. This is all covered in the Details West instructions.

 

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Rear End Details Photo taken by Pete Brown on March 6, 2005

The other main detail on the rear of the body is the backup light.

Again, I used a Details West casting, and installed it using Cyanopoxy. You'll also notice the small piece of .012" wire attached to the light. That's a bit thick, so if you have any .008" wire hanging around, I'd use that instead. The smallest I had available at the time was the .012", which scales out too large, but actually looks almost right when compared to the photos.

Anyway, that represents the electrical connection that is visible in some rear photos of WM F units. Simply drill an appropriately sized hole in the body, and a small dimple in the casting, bend the wire, place it through the body hole, then cut to length to reach the dimple on the light. Use Cyanopoxy to fix everything together and then snip the excess wire off from the inside of the body.

 

Pilot Steps

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Pilot Step on Etch-Mate Photo taken by Pete Brown on March 6, 2005

The pilot steps are tiny fiddly little etchings that look far more difficult to assemble than they are. If you follow the directions, and have appropriate tools, you will do fine. Just make sure you bend up the version that is appropriate for your pilot. If you want to practice, use one of the other unused steps (there is one set for the passenger pilot and one for the freight pilot). Also make sure you bend both a left and a right step. I can see how it could be very easy to accidentally flip one over backwards and end up with two left steps!

 

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Etch Mate and Etchings Photo taken by Pete Brown on March 6, 2005

I found two tools indespensible when bending these pieces: a set of flat (not serrated) jawed needle nose pliers, and the Etch Mate my wife got me for Christmas. The Etch Mate was only used for one bend, but it was one that would not have been easy to do using the pliers.

The Etch Mate is expensive, and you won't use it for every bend you do, but I have found it to definitely be a useful addition to my tool set.

 

 

Etched Side Panels

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Side Panel Etchings Photo taken by Pete Brown on March 6, 2005

Finally, I installed the side panel etchings on both sides of the body. Before installing, try to press out the slight curve introduced by the stress of etching the metal on one side. Then hold the piece up to the body so you know where you put the glue. You'll want to get the ends of the metal glues down well, as they tend to curve up a bit.

I used Cyanopoxy without the spray this time. I imagine regular CA would have worked well in this instance as well.

 

 

Workbench

Until next time, I leave you with a photo of my messy workbench :-)

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Messy Workbench Photo taken by Pete Brown on March 6, 2005

 

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