[Noisebridge-discuss] CNC Mill workshop Friday 1/15 6pm

[Andy Isaacson]

On Sun, Jan 10, 2010 at 02:25:53PM -0800, John Magolske wrote:
> I realize the focus of this workshop is on PCB routing, but just
> for future reference: I've been accumulating some metal & plastic
> (mostly 6061-T6 aluminum & Delrin) in a bin on a shelf in the shop.

That's awesome.

> These materials are for general use, but they do have rather nice
> engineering properties, so consider acrylic as a good starting out /
> scrap / test material choice.

Could we write up a sign to that effect, so that people can understand
why to use cheap material for trial cuts and what the benefits of the
nicer material are?

> I'll try to bring in some more material
> this week, will see if I can round up any acrylic. Also, it may be
> that machining T6 temper aluminum could be a bit hard on the mill, but
> I suppose if we adjust feed-rates to maintain a minimal chip-load it
> could be ok. If we had (or someone has) an appropriate oven, I suppose
> we could draw the temper down a bit.

What would you need, oven-spec-wise, to do this?  Could we repurpose one
of the toaster ovens or is the target temp too high?

-andy