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Hi Clive I would be very interested in any diagrams etc you have. Thanks Brod

Just sharing a - potential - point to look for. I don't know specifically which system they used,but THESE were laying on a work bench of mine and they are related.? These were from another 1975 era

He still has it. Added more pics. Gonna see about going to check it out.

Hey NICK , UH.....probably / maybe ? Worthwhile that is. I'd suspect it is a No.574 , it has the base swivel? and no no pipe jaws . The ROCK Island brand hasn't seemed to have been MORPHED by a

A local feller has this for sale for 200. Says it opens 6" and weighs 70#. Anyone know what model it is and if it's a good deal?

I have a picture of the Rev 4 board that is sufficiently good to read resistor colour codes but, unfortunately, only one of the wire wound resistor values is clearly shown. No idea how similar the Rev

Hi I need a wiring diagram for a erskine power feed board, I think it’s a version 5. All the ones I have found are nothing like mine. I need to replace two resistors but can’t find out what values

Hi, just be careful with dividing heads re the size and clearance between the cutter and the workpiece.? ?I used to have a adcock and shipley with a BP head and clearance was a real issue.? The BP

Anyone use one of these? https://www.ebay.com/itm/165622341954?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=lwotkgcoszu&sssrc=2349624&ssuid=9S4jfnnKS4i&var=&widget_ver=artemis&media=COPY

Buy a lottery ticket. This does not happen every day!Boards can even be cleaned with soap and water and a soft brush. But Bridgeport cautions cleaning boards with adjustable potentiometers on them. I

Thanks George. I decided the clean the faulty drive first using isopropyl and a clean paint brush.? After drying, I put it back on and fired it up and the problem was gone.? No adjustment was

First, move the drives back. No need to muddy up the water.The gain makes the drive response tighter or looser and thus affects performance of the machine relative to position.There were basically 2

The problem definitely followed the drive when I switch with Y. So, I'm wondering if I should try to tune the velocity gain to fix the problem.? The manual gives the function of the velocity and

A program is not necessary. You can use MDI. Put a dial indicator somewhere and approach the vise slowly. Of course you select a spot on the dial as zero and set zero datum. Move away in MDI. Approach

No one adjusted the pots. Haven't tried in feed rate, but does occur in rapid mode, so I don't think it would be a good idea to try it in a program.

Swap the Z drive with the X or Y.? If it follows the drive, you have your answer.If that does not shed light on the problem, swap the motors.Does this occur in a rapid move? Does it occur in a feed

Well, I still have a problem.? The problem is back to the original problem I had that led to me breaking the encoder and the circus that followed. The problem is that the Z axis control is not

Thanks George.? Seems like I got it.? I opened the space between the home and limit and it seems to work now.? Haven't cut anything yet, but I'm quite hopeful. Thanks again. Will

You have to understand how a machines homes. Switches are inaccurate. So what happens is the z starts to come up. It makes the home switch. The control now is aware to look for a marker pulse. This a

Hi, It wouldn't hurt to do that but while I'm not up on this actual board I'm familiar with reviving old test instruments and that often works. If it's a DIP package microcontroller I would be tempted