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Well, after a fair bit of playing with things I've come to the conclusion that this appears to a noise issue, likely due to use of what I suspect is an unshielded parallel port cable. Not sure why...

Got a problem I could use some help with - my computer is loosing the keyboard when Mach 3 is open..... This is new build system I'm putting together on a Boss 3 mill. The PC is a Dell optiplex 755...

First one done!

Sold for $5,000. Didn't expect to get that much for it, but it seems there's a good market for machines like this at least in central CA....

BP Boss 4 reconditioned and converted to Mach 3 located in central CA (Monterrey/Salinas)

Base machine is a factory modified Series 1 mill retaining all the features of the classic BP v-ram mill...

At least the Boss 4's have it... not sure the 3 does. It's hard to find though - not a traditional meter type unit, but rather a small white rectangle with a small silver tube in the center which...

I'm using essentially all the original BP boss stuff except the electronics - steppers, ball screws, limit switches, etc. What I'm doing is partially disassembling the machines to clean/inspect...

V head machine, so no issue there.

No worries, just food for thought. PM me if you want more info.

Where are you located? I have a Boss 4 conversion that I'm planning to sell once I get it done. Base iron looks to be in good shape and it's going to be set up to run Mach 3 - should pretty much be a...

How accurate are the hourmeters on these? If I'm reading it right (length of the darkened section) the machine has ~500 hrs on it which seems ridiculously low for this old of a machine.... With...

Thought you guy might like this - fabricated mounting bracket for the stepper controllers. These are KL9082s which have a built in heatsink, but it seems wise to provide airflow over the heatsink -...

Yep. Remove the 1/2" nut on the end of the ballscrew, tie the spring cover back, loosen/remove the gib (I removed it to make sure nothing got bound up and/or damaged as it comes off) and then just...

Can't get more than a tiny drop out of any of them. The machines sat for a significant length of time and from what I've read the metering units gum up pretty easily when they sit for any length of...

Removing the table is easy - loosen the gib, pull the nut & washer off the end of the ball screw and it slides right off. Just need to support it - sucker is heavy!

Looks like I'm going to need to...

Okay, thanks. My gut feeling was that super high tech stuff was probably wasted on these, but good to have another opinion.

Mounting the PC parts directly is a good idea to save space. I'm not...

This is the quote from the email:

"The 9082 is a chopper type driver, like the old kind, the 8070D is a digital driver, it has better performance. It can microstep at very high resolution. You...

Also, how many folks have the computer mounted outside one of the electronics enclosures? I was looking at using a desktop rather than a laptop based and cost, features (not sure how hard it is to...

If you can I'd be interested in a copy of both. Do you have a rough idea of when you plan of swapping your motors? I've seen them on ebay, but I'd rather not mess with ebay and support a forum member...

I'm south of the bay area in central costal CA - Salinas/Santa Cruz/Monterrey area.

Unless I find something seriously wrong with one I don't plan on parting any out - all 3 look worth converting....

Well, I wound up getting all 3 of these - was going to get 2 and then his wife :convinced" him he may as well get rid of all 3 while we had the trailer & forklift.... ;)

One is a boss 3, the other...

Where do you get the oil feed metering units/how expensive are they?

How hard is the teardown/cleaning/rebuild process? What did the parts wind up costing? Any thoughts on where to get a good...

Thanks.

Found some good info on the tooling, looks like I can make that work without too much trouble.

What made you decide the head needed work?

Are wiring diagrams/manuals out there for...

Ran across a guy a few miles away from me with 3 BP Boss series CNC machines all apparently removed from a small shop several years ago. He got them intending to convert at least one to modern cnc...

Hello all, I'm a hobbyist machinist working professionally as a naval engineer. Found this forum looking for some info on a Birdgeport CNC mill.