PDP 8 panels. Feedback

Chuck Guzis cclist at sydex.com
Tue Oct 27 11:59:39 CDT 2015

On 10/27/2015 09:33 AM, Jon Elson wrote:

> The ultimate way to drill holes in Plexi is with an end mill.  It can
>  make a slight chipping when it punches through the back, so you
> either need a backstop material or lighten up the feed a bit just
> before it goes through.  (This of course requires a center-cutting
> end mill, I prefer 4-flute for this.)

Sure, but I'm assuming that the original poster doesn't have a 
Bridgeport mill at his disposal.  But a drill press is quite within the 
budget of most hobbyists.  I'd think that if you already owned a 
vertical mill, you'd know how to work with plastics.

Back in the day, I loved hanging out at the model shop just watching the 
action and trying to second-guess the guys there.  Building a case with 
curves such as side contoured to a 200 inch radius was serious business. 
  The finished product was in clear acrylic, all ready to go to the mold 

Similarly, making the die set for punching sector holes in a 8" floppy 
would be child's play for someone with a wire EDM rig in his garage. 
But not every hobbyist can afford one.


More information about the cctalk mailing list