<gloat on>

I just managed to snag a Blum TC50 touch probe on eBay for 
$50 delivered.  Seems to be a $4000
probe.  http://www.ebay.com/itm/272331012422

Some videos show that it has green LEDs that blink once a 
second or so when turned on, and red LEDs that flash when 
the probe contacts something.  Also, some IR LEDs that 
presumably flash on contact. This did NOT come with the 
remote IR pickup module.  Does anybody know what the 
characteristics of the IR signal is?

I'm guessing it just flashes the IR LEDs at some high 
frequency on probe contact, and so I can probably make a 
really simple pickup for it with some IR photodiodes and an 
AC bandpass detector.

They note it takes 2 N side force and 7 N end force to 
trigger the probe, which seems amazingly high!
Any comments?

Thanks,

Jon

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