Installing Igaging Absolute DRO's on 1953 SB 9A

here is an overall view of my 1953 Model A. it's a 16 speed model, it was painted blue many years ago and I don't like the color. the paint has a lot of wear but it never peeled so I'm going to leave it as is. I've gone through everything to clean and lubricate and replaced all of the oiling felts. I also replaced the tired original motor with a 3/4 hp unit.

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it would be nice to have a good set of hole saws that cut metal so the boring head would only have to do a small part. my biggest drill is less than 3/4" and it's all swarf from there. this is all from this one piece. takes a while at .120 per cut.

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evan-e-cent said:
Hi Yota,
That's a good looking DRO setup and your SB9A looks in great condition. I have a Boxford 9A which is s clone of your SB 9A. Would you mind asking a question or two about the SB9A? Tony Griffith on 'Lathes' says the clones are mechanically identical. I want to know if this is true regarding the gear train. On the imperial Boxford when you are using the gearbox the 'standard' gear train has a 20 tooth stud gear and 56 tooth leadscrew gear (LSG). The metric version uses 50T stud and 45T LSG. Do the South Bend lathes use the same setup? Thanks!
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hello Evan. if the 2 gears marked in the photo are the ones you are asking about then yes they are 20 and 56 tooth gears.

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