EVERYTHING FOR ELECTRONICS
opposite to the truth.
— Chuck Irwin
CRYSTALS ON THE
CHEAP — NOT!
First, let me congratulate you all
on the very fine job you did on my
BINGO project in the Oct ‘07 issue.
Looks really great!
Second, a small anomaly has
snuck in (Murphy is always on the job
The article reads on page 54,
B) RC_OSC tells the PIC a resistor-capacitor combination will be used
to run the PIC clock (if desired, a
crystal oscillator can be used for PIC
oscillators to reduce costs).
My original text read as follows:
B) RC_OSC tells the PIC a resistor-capacitor combination will be used to
run the PIC clock (A crystal, often used
for PIC oscillators, was not used to
reduce the cost of the project).
Unfortunately, the wording in
the magazine leads readers to believe
it is CHEAPER to use a crystal for
the oscillator and that is exactly
CNC’ING IT DIFFERENT
Dear Mr. Weikle:
I was very sorry to hear that you
were disappointed with the Jul ‘07
Nuts & Volts article “Introduction
to 3D Scanning” by Dan Mauch.
Until now, the comments have been
Please allow me to state that we
are excited about 3D scanning and
wish to express that our article's basis
was directly related to prior feedback
that we have received. Many people
contacted us back in 2005 requesting
details about 3D Circumference
Scanners, the technology, hardware,
and scan process. This article was an
overview of those elements.
I am sure that you have gathered
in your research on the subject of 3D
scanning that the number of methods
are wide and that it usually requires
the combination of several complex
technologies to work. In particular,
when it comes to optical methods,
it’s not something that would fit in a
If there is something specific about
3D scanning that you would like to
Continued on page 97
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