Build a scale like tail wheel assembly
#1
After choking on scale wheel assemblies prices I decided to just make my own and you can too. This will go on a 1/4 scale super cub and could be used for many other planes.
First it requires a band saw and a Dremel, ( flex shaft helps ) but not needed and a couple carbide cutters, also a drill press vice. I'm going to post a series of pictures of what I did and you can ask questions if interested in more details.
First thing I went to a scrap, recycler yard and found 1&1/4" thick 6061 aluminum blocks, back to the shop, laid out a drawing kinda like a tail wheel yoke looked like and then cut a rough cut using a wood blade on my 10" band saw, a metal cutting blade doesn't work well for this as the aluminum shavings gum up the teeth. A wood blade is several times harder than the aluminum and will cut it well.




Here is where the fun begins, notice the 5th picture has a square on the top, that's to hold it with a vice and have at it with the carbide bits.
these are carbide bits, larger ones are 1/2" diameter, a bit large for 1/4 scale work, I used the two smaller ones on mine one chucked in the drill press for a rough out and the small one on my Dremel flex shaft for the final shaping, files were also used. Those two on the far right are rotary files, I never used them because I have smaller ones with my Dremel bits.
Here's the basic carved out yoke that has been smoothed up using emery cloth tore in strips.
notice I cut a slot in the top of mount for a steering arm, it's 1/16"x1/4" brass, it is drilled and counter sunk for 2-56 mach. screws, yoke was drilled and tapped to receive the screws. I used styrene to make the yoke cap and spring arm mount, a couple of dummy screws to mount it to the spring, primer & paint and you have a fine tail wheel assembly. Wheel is 1-1/2" X 1/2" wide.
By the way, I had bought the Ohio Superstar tail wheel for my plane but found it to simple for scale and only used the spring to build mine on, sure glad I did and this is my first one.
What's not to like, turned out real nice.
First it requires a band saw and a Dremel, ( flex shaft helps ) but not needed and a couple carbide cutters, also a drill press vice. I'm going to post a series of pictures of what I did and you can ask questions if interested in more details.
First thing I went to a scrap, recycler yard and found 1&1/4" thick 6061 aluminum blocks, back to the shop, laid out a drawing kinda like a tail wheel yoke looked like and then cut a rough cut using a wood blade on my 10" band saw, a metal cutting blade doesn't work well for this as the aluminum shavings gum up the teeth. A wood blade is several times harder than the aluminum and will cut it well.
Here is where the fun begins, notice the 5th picture has a square on the top, that's to hold it with a vice and have at it with the carbide bits.
Here's the basic carved out yoke that has been smoothed up using emery cloth tore in strips.
By the way, I had bought the Ohio Superstar tail wheel for my plane but found it to simple for scale and only used the spring to build mine on, sure glad I did and this is my first one.
Last edited by Leroy Gardner; 01-15-2018 at 09:38 AM. Reason: To finish it
#3
Looks good Leroy!!! I did kind of the same thing years ago on a Sig Zlin. At the time I had a machine shop at my disposal so it was easier, but the end result was the same.
You get a certain amount of satisfaction of doing something most consider "impossible".
Ken
You get a certain amount of satisfaction of doing something most consider "impossible".
Ken
#4
Maybe scale doesn't matter for many but I'm sure it does for some. Prices of these tail wheel assemblies put them out of reach for some of us, I decided to build my own and show others, it's not that hard and only requires basic tools to do it.





