Re: OT TigerSHARC to PC Interface

Richard Owlett wrote:
Jerry Avins wrote:

Richard Owlett wrote:

...

~40 years ago I was an Instrument Tech (read electronics tech) for Cornell's Chemistry department. I learned first hand the effect of "mis-framing" a question. A post-doc described his problem. I came up with a *THEORETICALLY* correct solution. I asked our machinist to mill a *PERFECTLY SQUARE* hole in a block of aluminum ;] He gave me a "reality" check and asked what I was trying to accomplish. after a day of thought he came up with a solution that could be formed by bending *** stock with rather loose tolerances.



Many aluminum alloys are fairly easy to broach, so square holes are not beyond reasonable machine-shop practice. When I need them, I make square-hole drills out of old untapered three-square files. You can buy them. too. You can even buy drills for hexagonal holes.
http://www.drill-service.co.uk/drills/Watts-Square-and-Hexagonal-Hole-Drilling-Equipment.htm




Sorry Jerry, you are *TOO* focused on achievable goals.

My solution required removing a *PERFECT* cube from a piece of material. Sub-micron radii would *NOT* assure success. My "solution" _PRESUMED_ *PERFECTION* .

You might as well specify the removal of a cube from the interior. I hope you remember my "dead center" story. In brief, since nothing is round, there is no such thing.

Jerry
--
Engineering is the art of making what you want from things you can get.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
.

Loading