When I lent my services to a collegue who was working on a film about 12 years ago, I was introduced to the world of cnc. I remember watching this huge machining centre milling out a slab of mdf and turning it into a fantastic set of gears. I knew that it would have taken me hours to achieve the same thing with traditional power tools. I decided then that I would invest in a cnc router for my own business Oxenham Design. At that time I could turn on a computer, but even to check email seemed like a crazy set of operations. I persevered and learned every piece of relevant software I could get my hands on. I am now fortunate enough to be using Vectric's ASPIRE software, and Techno cnc routers, which has helped us to create some amazing projects, both in part, or in full. I thought that this blog would be a great place to share "behind the scenes" adventures with the software, materials and equipment we use, as well as the projects we build.

Thursday, 9 May 2013

The Hardware store won't be duplicating this key!

Today I got started on the transition piece that blends the key handle to the shaft. This is a series of HDU rings that will be all glued up. The smaller rings needed only to be 1" thick, so I profile cut them on the Techno cnc from a 2" piece. Then I simply set the table saw fence to 1" and split them in half. I also filed some channels into them for gluing. I could have toolpathed this right into the file, but I wasn't thinking that far ahead yet!
I've got a huge 1.25" radius round over bit, and I wanted to use it on the rings. But due to the fact that it's a bearing cutter, I used the Techno like an overhead router and spun them manually. A little freaky with the cutter spinning at 8000 rpm!
With the sections all put together, this is what the transition piece will look like. I stacked 2 rings together for the larger ones, for a total of 4". Pretty big stuff.
Jody and Anna worked on cleaning up the handle a little before paint, while I cut some pieces for another NDA job.
With the glue seams taken care of, and a little filler here and there, it was ready for paint. I really like using the 1 part epoxy garage floor paint as an HDU primer. It fills the pin holes pretty good, is waterbased, and unlike latex, you can sand it when it dries. We wont be doing this key with an automotive finish, but it's still going to be glossy.
The shaft of the key got cut to the right size, and sanded for paint as well. Although by 5 o'clock, I really wanted to use it as a golf club against that pesky Fisher-Price moon that keeps getting in the way. Stupid moon. Maybe I'll get to hang it tomorrow before I line drive it down the street!


1 comment:

  1. Hi
    "Technology in the long-run is irrelevant". That is what a customer of mine told me when I made a presentation to him about a new product. I had been talking about the product's features and benefits and listed "state-of-the-art technology" or something to that effect, as one of them.Take a look at-n&k

    Thanks and welcome