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In article , "Roger_N" wrote:
I have a CNC lathe running with EMC2 under Linux. My home network is on the
East side of my house and my shop is on the West side... the Lathe PC
doesn't get a wireless signal, or at least my laptop doesn't get a reliable
signal when positioned by the lathe. I like having the lathe PC networked
to get updates, look up info, etc. Also it would be nice if in the future I
could get file sharing to work on my network so I can send the CNC files to
the lathe PC. ...And in the future I hope to convert my Anilam Crusader II
CNC Bridgeport to EMC2 control...
snip

Another option is to use "Homeplug" power line ethernet adapters. My
basement shop has a plaster over expanded metal lath ceiling, which makes
a very effective faraday cage between my wireless access point and my
shop. Running an ethernet cable would be a pain in ass, but I already
have AC wiring.

There are several versions of Homeplug; Homeplug 1 (good for about 5
Megabits/sec real data rate), Turbo (about 2-3 times faster), and
Homeplug AV, which is supposed to get you closer to 80-90 Megabits/sec,
which is a good bit faster than wireless. Homeplug AV is new, and is
designed to be able to ship multiple high quality video streams around
your house. The idea is that every TV, stereo, computer, etc. will have
the Homeplug AV chipset built in, so all you have to do to network them
is plug them into the wall. Intel is going to start putting chips into
some computers fairly soon, and most of the home entertainment companies
are part of the Homeplug alliance. There are a couple of companies
making the AV chipsets now, and they seem to have worked out some
interoperability issues. In theory, any "compliant" device will work
with any other, and they have been running extensive tests before
certifying any new equipment.

The two older standards have wireless extender kits, which consist of an
ethernet box that you plug into the wall connect to your router, and a
combination Homeplug interface/wirless box that you would put in the
shop. It plugs into the wall to talk to the other box, and has a
wireless access point built in.

I've been holding out for Homeplug AV because I will probably end up with
other Homeplug AV widgets in the future, whether I want them or not.
Unfortunately, nobody has a wireless extender setup for Homeplug AV yet.
If all you want is an ethernet connection, Linksys & Netgear both have
kits with two boxes, one of which could go to a wireless access point in
your shop.

Doug White