Working from brochures and limited knowledge, here is my guess as to how the Sag 12 developed. Any corrections and additions gladly accepted.
1 The Sag 12 same as mine (1976). Harold V bought his in 1967. How much earlier did they build them I wonder? Some had single speed motors (4 speeds plus backgear = 8 speeds), some had 2 speed motors (16 speeds)
NOTE I pinched this image from Tony's website.
http://www.lathes.co.uk/graziano/index.html
http://img.photobucket.com/albums/1003/PeterS/sag12.gif
2 Sag 12S. This comes from a brochure I have, has '79' on it, possibly means 1979. I haven't seen one of these.
As far as I can tell, this is the same lathe, re-styled castings, new colour, and with Reeves drive in place of the electro-magnetic gearbox. All of the levers seem to be in the same places, just look different. Same specs as to size etc.
Note Grazianos characteristic bed - there are two sets of ways, high and narrow for the tailstock, low, wide and covered for the carriage. This means that the 'high ways' can stop short of the headstock, giving a large natural gap at the chuck - very handy at times. It also means the lower ways can be covered - the protectors are very sturdy steel plates - and you never get swarf on the lower ways.
Also visible is the little lever on RH lower of the apron. You can pre-set 4 depth stops on the bar (shown just below the feed "screw"). Then use the lever to select 1-4. The carriage will stop feeding as soon as the relavant stop is contacted. What happens is, the carriage contacts the stop you have selected, it moves the stop rod longitudinally a very small amount, this disconnects the feed drive in the feed gearbox. I think there must be a clutch in the feed box. It only needs a minute end movement to de-clutch the feed, and it is repeatable. It is very useful when doing small production runs of bearing bores etc. You can have up to 4 stops preset and use them one after the other. When the lever is set to '0', no stops are contacted.
Another neat Graziano feature is just visible. There are holes in the main lathe casting to enable shafts to be put through, and the lathe to be slung easily without doing any damage. You can see one hole at the LH lower in the foot adjuster recess, and the other at the lower RH side.
http://img.photobucket.com/albums/1003/PeterS/graz3.jpg
3 Maho Graziano GR 100 W. This comes from a brochure dated Dec 1989. I have never seen one of these lathes, but once again, it still looks like the same Sag 12 under all the styling differences. The specs are still the same. Seems to have gone away from the variable speeds though, they are offering 8 speeds. Weight has gone up from 1000 kg to 1270.
My Sag 12 has a similar (but home made) steel enclosure up the back of the lathe, works well at containing swarf, and has a handy top surface that works as a shelf.
http://img.photobucket.com/albums/1003/PeterS/grazgr100w.jpg
Apologies for the wild image sizes.
How can I re-size them? Do I need to re-scan them? I tried to resize them with the "Paint" software that comes with XP Home, but it just chops the image down so half of the lathe dissapears. Help please!
