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I attempt to build a Class 5 Baja


DavidG

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Well, here's a NEW update.

I was working on the engine cage. I got it pretty well done and was really happy with it. ....for a few minutes anyway. Then I noticed that, when viewed directly from the rear, the cage was crooked. It was more twisted than I could live with. So when I went to tweak it back, half the entire roll cage collapsed and in an instant, I realized that many hours of work had just gone down the drain.

Ergo, I'm going to shelve this project for just a little while. The materials that I'm using right now are just not very conducive to my goal and that is causing a great deal of frustration. I would REALLY like to build this roll cage out of brass that I could solder together but I've never done any of that. It would be a great time to learn but I'm finding that information on techniques is rather limited on the web. Virtually all of it is dedicated to modeling scale locomotives. While I love looking at those, it's not my area of interest. I'm going to order a book from Amazon.com that is supposed to explain the process. Also, the roll cage was to be a primer for the more delicate modeling of the long travel front and rear suspensions. No VW model that I've seen offers an independent rear suspension that I can modify for this project.* So it would all have to be done from scratch. Copper wire and JB Weld aint gonna get it.

On the positive side, I now have an excellent idea as to how the roll cage should be built. When I get back to this project, I will build some jigs that will insure consistent bends and dimensional accuracy. Also, I remembered that, when I was an avid reader of Hot VWs magazine every month in the 70s through the 90s, many Class 5 1:1 cars were built using a 3" body lift kit. I had completely forgotten about this and I realized that I could factor that in to the model. This would give me just a little bit more room to play with and could really make a difference.

So please be patient and I will come back to this thread at a later date and finish this as soon as I figure out a workable solution. .

*When Dr. Porsche first conceived the little VW's suspension geometry, he could not have foreseen how perfect that pivot action of the VW's springs and trailing arms would be to getting slammed around off road. The first VW's and Porsches had what is now called the swingaxle transmission. However, in an extreme turn, this design could actually cause the car to flip. This led to the development of the fully independent suspension that used 2 CV joints on either half-shaft. On VWs, this was introduced in 1969. When the off road community started realizing how the IRS was even better for off-roading than the swingaxle, it wasn't long before all VW based sedans and buggies were using variations on that theme. The problem for me is that ALL the VW models available have the swingaxle design and I really need to build this car with an IRS.

Edited by DavidG
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