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Re: A 'would this work' thread for small machineshop

I'd probably just do it with relays too. You could have mfi control the relays at a later date. MFI probably doesn't have the current rating to handle your compressor's power input anyhow.

At home, I have a big relay box next to my breaker panel. Inside, every light in the house is homerun to the relays (all lined up on din rails). Light switches are all cat-5e and operate the relays. Eventually, I'd like something like mfi or otherwise computerized control the relays based on light switch inputs, computer scripts, web, and a big energy saving shutdown button by the door.

As it is now without computer, I can rewire light switches to do different/more lights from a big row of 110 punchdown blocks in the basement.

I've also used dpdt relays to "lock each other out"; in my darkroom, if the safelight is on, I can not accidentally turn the normal light on, as the safelight relay opens the normal light relay when the safelight circuit is closed.

Whatever you do, document it well. Marker fades and wipes off. People forget and get confused.


Hmm, this intrigues me, would you mind snapping a picture and posting it up here for me to see?
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Re: A 'would this work' thread for small machineshop

Hmm, this intrigues me, would you mind snapping a picture and posting it up here for me to see?


plus.google.com/u/0/photos/108475850949105038922/albums/5791335321177125249
Jason Philbrook
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Re: A 'would this work' thread for small machineshop

OH my Look at the wire, I get confused alright . I bet it works sweet.
Whats the life time expectancy of those relays?
Walks in, tells it like it is, walks out , milks a cow
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Re: A 'would this work' thread for small machineshop

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Re: A 'would this work' thread for small machineshop

Jason, this is so illegal and unsafe, it screams.

Low-voltage control cables mixed in with ac
mains cabling, and not even separated--much
less isolated from each other. And a big car
battery in an open, unvented environment
with exposed bare terminals, and without
even an in-line fuse in sight.

This is plain nasty--even for Maine. Dave

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