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CNC Router : Machined Items

Scale Model UAV Wings

Some Friends of mine needed to do some wind tunnel testing on a set of fairly complex aerofoils that they had designed for their engineering honors project and they asked me to whip them up on my cnc machine. One thing to note here is that my machine is only a 3 axis machine and an aerofoil has two sides, so to manufacture the wings I had to cut one side then flip the work piece and cut the next side, setting this up was a nightmare I should have just added a 4th lathe axis to my machine. It was a fairly slow process but after about 5 hours of machining I ended up with some really nice wings which according to the wind tunnel testing will fly (if attached to a plane of course).

First Side Complete

First Side Complete

Top View

Top View

Finished Product

Finished Product

Bull Disk

To test the resolution of my machine I found the the vector file for the bull cut out below, I used a 2.4mm (3/32") round nosed router bit at fairly fine steps, I think 20% of the blade diameter.

Bull or Horse?

Bull Disk

HNTE Engraved Sign

I used CamBam to generate the g code for this sign, you can see the video and pictures of the complete product with a lick of varnish below. My machine is perfect for this sort of work, this sign took only a few minutes to machine.

Machine In Action

HNTE Sign

sign

Tree Of Life Carving

I found this cool picture of a tree on the internet and converted it to a vector file using img2CAD, then created the g code using cambam. The result is a pretty nice looking 600mm diameter carved disk which I have hung above my fireplace. I might not have any artistic talent, but it turns out I can build a machine that does.

Tree of Life

tree