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

[John Magolske]

* Jonathan Foote <jtfoote at ieee.org> [100110 11:54]:
> CNC Mill Workshop, this Friday at 6PM.
> 
> Learn to use the mill for 2D engraving and isolation routing of PCBs.
> 
> (Note the mill is loud and this may not be a good time to host other
> events/classes, but the calendar looked clear and Shop Class is Friday
> nights as well).

Sounds great! The thinking re Shop Class Fridays is basically a time
for demo's, workshops, etc around fabrication. For a while Friday
evenings have been mostly about cleaning up & organizing the shop...
it'll be nice to see some fabrication happening.

> I spotted a big pile of copper-clad PCB in the electronics area.
> Does anyone know if this is available for general use/abuse?

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.
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. 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.

John


-- 
John Magolske
http://B79.net/contact