OK,
in the desperate search for a cost effective, simple solution to getting "collet" and "South Bend 9 C" in the same sentence I have stumbled across these 2 solutions, both based on ER32 collets which are now very inexpensive:
- Search for "100MM DIAMETER ER-32 COLLET CHUCK " on eBay and you find a backplate mounting chuck. So for under $100 / £100 you get one of these and a backplate, some simple fitting and you are done. Much neater and less expensive than one of those big chucks with the integral draw system;
- Searching for the SB9 spindle taper, I have discovered that it's almost certainly a Morse B24 taper, the same taper angle as MT3 but one "size" bigger, as if it continued from the larger end of the MT3. Check it on Wikipedia. These are used for arbors, like a Jacobs taper.
So, if I could find a B24 - MT2 / Mt3 sleeve I could get a simple, inexpensive, widely available MT2/3 - ER32 collet system... But they don't seem to exist, only arbors, sigh...
BUT, if the B24 is just 2 mm larger in diameter than MT3 why not turn a sleeve? Painful to set up the taper of course...
BUT (my quest for a quick fix continues) what about a sheet of 1mm steel sheet wrapped round an MT3 taper (trimmed to a truncated cone of course), that would take it dimensionally up to a B24?
I don't have any MT3 tools, I need to buy sleeve and give it a try...
Meanwhile, reactions? Improvements?
in the desperate search for a cost effective, simple solution to getting "collet" and "South Bend 9 C" in the same sentence I have stumbled across these 2 solutions, both based on ER32 collets which are now very inexpensive:
- Search for "100MM DIAMETER ER-32 COLLET CHUCK " on eBay and you find a backplate mounting chuck. So for under $100 / £100 you get one of these and a backplate, some simple fitting and you are done. Much neater and less expensive than one of those big chucks with the integral draw system;
- Searching for the SB9 spindle taper, I have discovered that it's almost certainly a Morse B24 taper, the same taper angle as MT3 but one "size" bigger, as if it continued from the larger end of the MT3. Check it on Wikipedia. These are used for arbors, like a Jacobs taper.
So, if I could find a B24 - MT2 / Mt3 sleeve I could get a simple, inexpensive, widely available MT2/3 - ER32 collet system... But they don't seem to exist, only arbors, sigh...
BUT, if the B24 is just 2 mm larger in diameter than MT3 why not turn a sleeve? Painful to set up the taper of course...
BUT (my quest for a quick fix continues) what about a sheet of 1mm steel sheet wrapped round an MT3 taper (trimmed to a truncated cone of course), that would take it dimensionally up to a B24?
I don't have any MT3 tools, I need to buy sleeve and give it a try...
Meanwhile, reactions? Improvements?