Mitutoyo reader head

Got a sweet Leblond Tool & Diemaker lathe last week from HGR Surplus in Euclid, Ohio. The Mitutoyo y axis scale reader head has its' signal wires pulled off the heads' circuit board. Might anyone have the color code diagram for one of these heads? No model # on the assembly - looks like late 70's or early 80's vintage. Called Mitutoyo, they won't fix it

- obsolete based on pictures emailed - but will supply me with a modern replacement for $325.00. Shame to waste $ for some pulled out wires... Any help would be appreciated.

Reply to
syoung
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Can you post a photo or two somewhere?

Reply to
N Morrison

Assuming it has a Y axis DRO of the same vintage/make, the colour codes SHOULD be the same....put the covers off, have a look

Andrew VK3BFA.

Andrew VK3BFA

Reply to
Andrew VK3BFA

Posted at the Metalworking dropbox as "mitutoyowiring". Thanks

Reply to
steve

The X axis is different than y axis.

Reply to
steve

??? Where ???

Reply to
N Morrison

If the reader heads of the X and Y scales appear to be nearly identical, removing the small cover from the scale that is working could very likely reveal the wiring order on the one with the pulled wires. If the little covers have sealant applied to them, cleaning off the old sealer and replacing it with some new sealer should insure that liquid drippage will be kept out of the reader head housings.

Checking the individual leads for continuity while flexing and rolling the lead bundle slightly with your fingertips could confirm that there aren't any other intermittent breaks in the cable leads before concluding that the repair is finished.

Reply to
Wild_Bill

Here -

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click on "Dropbox Files"

Reply to
steve

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--Winston

Reply to
Winston

Hey Steve,

I would expect them to go on in the same order as they "lay". Looking at your pix, the blue wire is still attached, and all the wires appear to be still "trapped". I'd re-solder in that order.

Take care.

Brian Lawson, Bothwell, Ontario.

Reply to
Brian Lawson

What model of display box does it have? I have a DRO called a "PL Counter" with two different styles of scales on it. A "standard" scale on the Z, and a "mini" scale on the X.

Jon

Reply to
Jon Elson

Your box sounds like the one I have - 325 PL. Mine has the mini scale on the y axis.

Reply to
syoung

I think I'll give it a try, thanks.

Reply to
syoung

Ugh. The problem is it is quite involved to get the scale off the machine and back on and properly aligned. As you've discovered, they are also a bit delicate, so there is some possibility of damage in taking it all apart. So, I'm kind of hesitant to take mine apart to get a look at the wire ordering. I hope somebody else has one off a machine to look at.

Oh, yeah, the "Y" business. Mine is labeled "Y" also, but by definition, it should be Z for the carriage and X for the cross slide.

Jon

Reply to
Jon Elson

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