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Wow, very nice work!

The gear is coming along. Wheel dia is 5.75 inches.
Paul

Well here is one of my friend Butch who did the machining. Gonna be a big project.

Paul

Russell,
That machine has 11 inches of Z travel but not all of it is usable because the limiting factor is the length of the end mill. When using a "normal" size cutter Z travel has to be limited...

My buddy uses his router to cut foam models which will be fiberglassed then used to build female molds. Here is his latest effort for a 1/6 scale F-105. I suppose it's nice to have a machine capable...

Here is my latest gear project, the C-119. I have access to the real thing which makes modeling it much easier.
Here is a link to a short video.

http://www.youtube.com/watch?v=cJ4wDQp_F38

Paul

I put a short video of the gear operating during development. Sorry, it's pretty crude video. And yes, I did get them working together!
Paul


...

Scud,
The system is pneumatic and operates at about 100 psi, which is normal for most RC retracts. I used 5/8 in diameter air cylinders from Robart -- the cylinders I've made are not up to the...

Mike,
It was done on a commercial router made by a small local builder. It's a stepper motor setup with a 4 X 8 foot table that my friend uses for his model building company.
Good to have friends...

Just got these little beauties from Bruce Satra. They are investment cast and are very well done indeed. They are for the Pratt and Whitney Wasp Jr. and the Morton M5. I'm amazed at the talent out...

Joe
The only manual I have for my mill is an illustrated parts manual and some documentation for the Heidenhain control that I will not be using. The good news is that it is a fairly simple machine...

That sounds familiar! I tell everyone that paying a mover is the best deal going now. Good luck with the new toy.
Paul

Thanks, George.
It's great to have help from the pro's!
Paul

Looking ahead to getting the spindle up and running I'll need to determine just which tooling I need. I think this is the Quick Switch 200 series but I'll put up a photo so the experts can tell me...

Today was a good day.....
After poking around not knowing a differential from an integral I checked out the great little tutorial from the University of Michigan....

We used a 1/2 inch end mill. As you can imagine it cuts like butter at high speed. Great for stuff like this where you will build up a finish on the foam.

The plot thickens.......
All three axes are functional. The Flashcut software is pretty easy to learn so far but tuning the servos is not. There are several parameters and while its fun to poke...

x and y axes installed.

Here is the Z axis servo installed.
More to come,
Paul

New encoders mounted on the servos. It required a little stub shaft extension and a motor case extension as well. Of course we checked to see if the extra length would be a problem.

After getting it in the garage ( I have a very understanding wife ) and cleaning it up we started with changing out the old resolvers with new encoders. I was lucky to get an extra motor and after...

I took the plunge a few months back not knowing if I'd be able to do this, but with the expert help and advice of fellow-Zoner Swede it seems to be coming along well.
I'll put up a few photos of...

Steve,
I did think about just cutting a mold into a block of suitable material but wanted to "keep it simple" for the first go 'round. Also, when I get around do doing large fuselages I'll probably...

Harvard,
Sorry I didn't build the plane - a buddy named Lee Rice did. I'll see if I can get some photos if you'd like.
Paul

My first foray into the world of CNC is this simple tank mold. I drew them up in Rhino and generated the G code in Visual Mill. My good friend Butch Sickels cut them on his CNC router in blue foam....

You are correct, it has a pneumatic brake which is simply an "O" ring in a groove. The tire and wheel are purchased and are made with an internal bore for such a brake.
This is the only photo I...

Here are a couple of shots of the gear. The model is to 1/6 scale so the fuse is 108 in. and the main leg is 7 in.
I made a mockup in wood to verify the fit. Then drew it up and started cutting. ...

I should have mentioned that I just need the manual for the basic mill as I'm converting it to a Flashcut control.
Thx

Very nice!
:)

Nice projects. I love radials too and have one in progress. Can you believe Swede and I started together and his has been running for a few years?
I'm not worthy...I'm not worthy...