What Did You Buy Today?

Added some SCLCR boring bars and a couple of BXA holders for them....I can't seem to get enough tool holders! Also bought a Mitutoyo 2803S-10 indicator from Ideal Precision. Next up...another NOGA stand, solid carbide boring bars, rotary table, etc, etc, etc :grin:

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ttabbal said:
It's probably not as precise, but my little rotary fits in my DX6. I ran an indicator over the table and it was within 2 thou. Good enough for the simpler stuff. If I were to do something that needs real precision or heavy cuts, I would mount it to the table directly. Of course, "heavy cuts" on a 6" RT is likely not all that heavy in the grand scheme of things.
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It struck me (not too hard, it didn't hurt) reading the "fuss" about rotary tables here that an indexing head is just a rotary table with fraction plates added. A rotary table has a taller gear ratio, sure. I have one that is 72:1(?) that is fitted with fraction plates as a retrofit. A dividing head usually has a lower gear ratio of 40:1, making the calculations easier. But the rotary table with a fraction plate fitted does do a larger number of divisions.

The 72:1 is a divisor to 360, making degree divisions simpler. With the addition of fraction plates, it divides by the fraction of the plates rather than degrees. Is this information really useful? I doubt it, I am just in a "strange thoughts" mode and expressin myself in public.

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