[torontocbm] Re: Can anyone recognize this adapter?
- From: "Stewart C. Russell" <scruss@xxxxxxxxx>
- To: torontocbm@xxxxxxxxxxxxx
- Date: Fri, 12 Jun 2020 15:44:57 -0400
On 2020-06-12 11:12 a.m., Dan Gahlinger wrote:
I'd have to pull out an ancient laptop that has a parallel port on it,
or old desktop...
Perhaps your only option, Dan. Thinkpads and corporate Dell laptops
tended to have them up to about 10-15 years ago.
There are full-featured USB to parallel port adapters for CNC use (e.g.:
UC100 USB motion controller —
http://cncdrive.com/UC100.html), but they
don't appear as a standard port. If anything, they appear as a serial
port, and do the fiddly job of turning buffered g-code commands into
precisely-timed stepper motor signals.
This particular model uses a custom FTDI serial driver chip: just custom
enough to have a different USB ID, but not custom enough to not be
fooled into sorta working with the stock FTDI driver. It wasn't my CNC
to play with entirely (part of a big weird custom cardboard box cutter)
and I never got it to quite assert the right control lines to do much
beyond identify as a port.
Good luck!
Stewart
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