New Power Supply for my X2

[Tallen]

Any clues as to the part number of this board yet?

[Al_The_Man]

The board in the picture is one of the KB KBM series of drives, they can be had in KB or Baldor, same board, you can get 120vac or 240vac input for 90v and 180v motors.
http://www.kbelectronics.com/
Al.

[Dougal]

Originally Posted by Al_The_Man The board in the picture is one of the KB KBM series of drives, they can be had in KB or Baldor, same board, you can get 120vac or 240vac input for 90v and 180v motors. http://www.kbelectronics.com/ Al.

So something like this will do the same job?
http://www.solidstatedrives.com/(S(j...ookieSupport=1

I've just had my X2 motor drive throw in the towel.
Will the 180v output give me a lower speed than the rated 220v? Or is the original controller unlikely to have ever put put the full 220v?

[Al_The_Man]

Those should work, they all use a full wave bridge with 2 of the rectifiers being SCR's and are connected across the 240vac.
They output the maximum DC voltage you will get with this configuration across your AC input.
I just converted one for a bridgeport higher HP motor by replacing the Bridge components with beefier ones.
Al.

[DogWood]

the part # Sonny used was KBLC-19PM

I made a local copy of the page from his web site last year, I bought the parts to do the conversion but haven't had a chance to do it.

I had bought one of his fan kits and some of his GIBs, fan kit was good, GIBs not so good - sorry to hear he's out of business.

If anyone wants the page let me know, I can zip it up and email it

[ibuildstuff4u]

Yes, that's the one. My mill is bolted to the work bench and I can't see the board with out moving the mill or pulling off the control box which is something I didn't want to do. Thanks for posting the answer.

I purchased my board off E-Bay for around $25.00 and am very happy with the results.

Dale P.

[Tallen]

http://szabaga.com/x2/power/
Hosted! Thanks DogWood!

[Tallen]

Just finished mine. Board was $25 used and about $15 in supplies at Radio Shack and the HP resistor on eBay. Need to get a less flimsy mounting solution, but that's what I had sitting around. I reused the old wire and wire isolator tubes.





For some reason the factory little fan power supply is only putting out 4.4v when 110v is applied. Any ideas or is it just junk?

Also, the website mentioned the X2 motor was 1/2 hp. Mine says 4/5hp. Should I upgrade to a 3/4 hp speed resistor since that's the closest to 4/5ths that is sold?

Now it's enclosure time. Hoss's Extended X-Axis is about 25% done too!

[ibuildstuff4u]

Looks good! My mill motor says 4/5 hp too and I just used the 1/2 hp resistor. This power supply is putting out more voltage and amps than the stock unit and I would worry about blowing the motor if you go any further with the resistor.

Have you noticed the difference in power and RPM?

I have the same belt drive kit and really like it, but didn't care for the pulley ratios until I up graded the power supply. Now I get 2200 RPM when in the low range instead of the stock 1700 RPM and around 6200 RPM in the high range.

As for the stock fan, it may only run off 4.5 volts. Mine was getting noisy and I replaced it with a larger one from Radio Shack. The new fan runs off 110 VAC so the little power supply wasn't needed.

Glad the up grade worked out for you!

Dale P.

[Tallen]

Originally Posted by ibuildstuff4u As for the stock fan, it may only run off 4.5 volts. Mine was getting noisy and I replaced it with a larger one from Radio Shack. The new fan runs off 110 VAC so the little power supply wasn't needed.

I know where I'm stopping later!

Yes I am ecstatic about how easy this was. Only problem I had was with hooking up the wires. It said F+/- (which on my board is a constant) and I really needed to use A+/-.

As far as speed goes I don't have a tacho, but there certainly is a large improvement. I cut the last side of the aluminum drop that will go on my extended X and noticed a huge difference! The speed and torque really eat through aluminum like butter.