On 01/28/2019 04:28 AM, andy pugh wrote:
It is curious that the Sheldon R series is absent from
lathes.co.uk, but then so is the Holbrook H series.
They were not made in great numbers, although I have seen 2
others in shops. One was at
Washtenaw Community College, where we had a few CNC Workshops.
There was an early R-series (before roughly 1968) that was
much less sophisticated (no separate feed driveshaft,
standard "Rockwell" style QC box, and the late R-series that
had the feed shaft and the 80-speed QC. Both had a really
impressive headstock about the size of a V-8 engine block,
with a 2.5" spindle through hole. Several spindle mounts
were available, mine has a D1-6.
Jon
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