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How to Make a Cow Catcher

August 30, 2018 07:06PM avatar
Well almost everyone knows by now, that the 315 is in the process of being back dated to when the D&RG bought her from the F&CC, and was re-numbered to 425, before she was assigned 315.
The 315 crew is in the process of changing out all the stuff to get her aged, and one of the main looks to get her back to 1918 is the wooden pilot.

Sounds simple enough, right... wellllllll maybe not. As Chief of Maintenance for 315, I took it on to get the wooden "Cow Catcher" on the front end. Where to start.

This BLOG will be more of a "Build Log" then a technical class.

First off I started looking for photos of the early years of the C-18's 425 is not pictured but I did come up with a pic of 424 her sister.
Here's the front of 424. Notice how far it sticks out, and that it is two colors, a light color in the middle and darker on the sides.
CowCatcher-113.JPG

And the copy of the original blue print from the D&RG archives of the planes for wooden cow catchers. Give a good idea of construction, but wrong size and wouldn't fit. And it has a lot of steel built into it and used to attache it to the pilot beam.
CowCatcher-138.JPG


The decision was made, since this cow catcher was a temporary prop, that we would make it as simple as possible to add and remove, but be as true to the prototype as we can. And as a fundraiser project, keep the cost down to a very small amount.

We spent several hours on the front of 315 taking measurements and designing a mounting system. And some times just making a "Swag" for how to get it to fit. Un-beknownst to most people, is that there is a lot of steel in the original . we are trying to get it done in wood, Saves costs, and construction complexity.

I finalized a plan, and drew up a full size Drawing. 1:1
CowCatcher-122.JPG
The hole in the center is for the front knuckle to pass thru. The other realization is how would we be able to get the right angles on the vertical boards, and how to keep everything aligned while we did construct the unit. I decided that I needed to construct a Jig to align everything, and to actually build upon. The Jig needed to be square and straight and have a 90 deg. angle to it, and be as wide as the front of the engine.
This is what I came up with after several hours in the Hot NM sun.
CowCatcher-117.JPG
And the reinforcing on the back side.
CowCatcher-118.JPG

I got the important centerline drawn and layed out the alignment and placement for the front bottom beam, and the top beams. Finally I get to start building the real thing

Stay tuned..
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How to Make a Cow Catcher Attachments

dave2-8-0 August 30, 2018 07:06PM

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John K August 30, 2018 07:12PM

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dave2-8-0 August 30, 2018 07:26PM

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Dirk Ramsey August 30, 2018 07:12PM

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dave2-8-0 August 30, 2018 07:22PM

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GeorgeGaskill August 31, 2018 12:21AM

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jim pallow August 31, 2018 05:43AM

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dave2-8-0 August 31, 2018 06:38AM

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Greg Scholl September 04, 2018 07:03AM

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Prowordsmith September 14, 2018 08:13AM

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Peyton Smith August 31, 2018 08:07AM

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dave2-8-0 August 31, 2018 07:48PM

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Mr. Erin Swain September 01, 2018 09:50AM

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dave2-8-0 September 01, 2018 08:55PM

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Chris Walker September 01, 2018 09:06PM

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dave2-8-0 September 01, 2018 09:16PM

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dave2-8-0 September 02, 2018 07:11PM

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Chris Walker September 03, 2018 02:49PM

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California Bob September 03, 2018 10:03PM

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dave2-8-0 September 03, 2018 10:37PM

Re: How to Catch a Cow . . . eye rolling smiley

Johnson Barr September 03, 2018 01:54PM

Re: How to Catch a Cow . . . eye rolling smiley

jim pallow September 05, 2018 09:37AM

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dave2-8-0 September 03, 2018 09:30PM

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dave2-8-0 September 03, 2018 09:39PM

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John Bush September 04, 2018 02:51AM

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nickgully September 04, 2018 05:59AM

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dave2-8-0 September 05, 2018 07:59AM

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Dave Vollmer September 05, 2018 10:29AM

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GeorgeGaskill September 05, 2018 11:55PM

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dave2-8-0 September 06, 2018 06:49PM

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dave2-8-0 September 07, 2018 06:47AM

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Wayne Hoskin September 07, 2018 08:35PM

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dave2-8-0 September 09, 2018 07:58AM

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dave2-8-0 September 09, 2018 06:27PM

Re: How to Make a Cow Deflector

Johnson Barr September 09, 2018 06:37PM

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pd3463 September 09, 2018 10:05PM

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dave2-8-0 September 10, 2018 07:38AM

How to watch a movie star!

Wayne Hoskin September 10, 2018 06:17PM

Re: How to watch a movie star!

dave2-8-0 September 10, 2018 09:43PM

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dave2-8-0 September 11, 2018 07:15AM

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Steve Hughes September 11, 2018 07:23AM

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dave2-8-0 September 11, 2018 07:21PM

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bcp September 11, 2018 07:44PM

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dave2-8-0 September 14, 2018 05:18AM

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Samart September 14, 2018 07:11AM

I'd betcha Earl would know!

timtrain488 September 14, 2018 09:24AM

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Prowordsmith September 14, 2018 08:28AM

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Earl September 14, 2018 09:37AM

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Ted miles September 14, 2018 10:28PM

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dave2-8-0 September 15, 2018 05:52AM

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SR_Krause September 17, 2018 07:53PM

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dave2-8-0 September 21, 2018 06:08AM

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Charlie Mutschler September 21, 2018 07:29AM

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Jeff Taylor September 21, 2018 09:33AM

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Mark Huber September 21, 2018 01:12PM

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dthom8787 September 21, 2018 01:44PM

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Mark Huber September 24, 2018 01:50PM

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Chris Walker September 24, 2018 01:53PM

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shakeyjake September 21, 2018 02:36PM



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