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So I just killed my old spindle that I have been running for about 10 years. I think I was running too low RPM with a 4" surfacing cutter. Got an over current error, now it just throws the EOCA...

Thanks for the comments

The keyboard is a "USB mini-keyboard with touchpad" from Adesso. I bought it from CDW, but lots of computer suppliers have them.

All the new panels (keyboard, LCD....

First off, thanks to everyone for the information posted to the forums, and a special thanks to HillBilly for the work he has done.

I've attached some pics of my (almost) completed retrofit on a...

Fixed it!!

The diode across motor winding X2 to power resistor 87 failed to a short.

Replaced it with the biggest rectifier I could find in my parts bin to test, and axis works fine.

Now to...

MSC Has them

http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=1274&PMT4NO=64384666&PMT4TP=*ITPD&PMITEM=04202131&PMCTLG=54

Checked the final drive transistors (On the big heatsink in mounts for each axis behind the ACC & SMD boards Right?) No shorts, Swaped the X & Y Transistors, (moved each assemby & re-wired) No...

You mean Q1-Q4 on the SMD? (Those have been replaced in the past and are no longer that number -Have not looked them up to see if equiv.), Don't see 2n6547's anywhere.

I swaped X & Y motor wires...

Removed

I'm retrofitting a BOSS 4 with the original drives & steppers. All axis (XYZ) were working yesterday. Fuse 6 blew (I think it was 6. It's the 1.4A on the Limit overide circuit.) Replaced it today,...

On my 4x8 steel frame R&P machine, I'm getting some "bounce" for lack of a better word, on cut path reversals, (most noticeable on inside corners, and parallel sweeps.) Usually looks like an...

Running a 5hp Phase-A-Matic rotary converter. I've measured the no load voltages, and I've got aprox - 240, 260, 280.

Should I add the voltage stabilizer before I hook up my Boss 4. (original...

Thanks George-

Of all things, I've contacted the previous Company (who purchased the mill new,) and they are really interested in helping me. It's a BOSS 4, and they have a complete set of all...

Just purchased a Series 1 with BOSS control (Tape Reader) How do I determine the control version?

Thanks,

Main Frame rails were tapped, and the racks were drilled & counterbored. Racks bolted with 10-32 Socket Cap screws.

I welded as little as possible, and machined the attaching surfaces after...

Most all of the designs were grabbed from various machines built here. I didn't draw anything up, just built one component at a time.

The main frame (X-Axis) Is 4x4 & 4x3 0.25 wall tubing. ...

Thought I'd finally post something.

Attached are some pics of my 4x8 that is almost complete. Had to rush it into a job, so I have not painted it, managed the cables, or mounted the computer...