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- Oct 31, 2016
- Messages
- 2,643
To get full use of my er32 collets I would like to have an er32 collet chuck to fit my 12x36 craftsman lathe so I could pass a workpiece through the headstock. I have making a collet chuck on my to do list. I could buy one at a cost of around $100.
While looking on Ebay I came across listings for er32 collet blocks. Most were sized at 40mm (1.56") across the flats. This is too small to bore out and thread to fit my lathe, 1.5" x 8 tpi on the headstock. Then I came across one listed on Ebay as being 45mm (1.755") across the flats. Price just over $30 including shipping Also saw one offered by Shars listed as being 1.75" across the flats. Price around $35 plus shipping.
!.75" across the flats would leave 1/8" wall thickness after boring and threading for 1 1/2 x 8 tpi. Is this enough wall thickness? It would be way easier for me to bore out and thread a collet block than making a collet chuck from scratch. I don't have anything in my scrap bin that would be the right size so I would have to buy the raw material and I would also need to buy an er32 collet nut. This would cost me the same if not more than buying a collet block.
I live out in the country and the nearest town is a 25 mile round trip. No source of raw materials there. I would have to either drive to Visalia, 70 mile round trip, or Fresno, 100 mile round trip, to try to find something. Easier for me to buy online. This gets expensive with the shipping. If I can convert a collet block to a collet chuck I would be ahead of the game.
What do you guys think about this?
While looking on Ebay I came across listings for er32 collet blocks. Most were sized at 40mm (1.56") across the flats. This is too small to bore out and thread to fit my lathe, 1.5" x 8 tpi on the headstock. Then I came across one listed on Ebay as being 45mm (1.755") across the flats. Price just over $30 including shipping Also saw one offered by Shars listed as being 1.75" across the flats. Price around $35 plus shipping.
!.75" across the flats would leave 1/8" wall thickness after boring and threading for 1 1/2 x 8 tpi. Is this enough wall thickness? It would be way easier for me to bore out and thread a collet block than making a collet chuck from scratch. I don't have anything in my scrap bin that would be the right size so I would have to buy the raw material and I would also need to buy an er32 collet nut. This would cost me the same if not more than buying a collet block.
I live out in the country and the nearest town is a 25 mile round trip. No source of raw materials there. I would have to either drive to Visalia, 70 mile round trip, or Fresno, 100 mile round trip, to try to find something. Easier for me to buy online. This gets expensive with the shipping. If I can convert a collet block to a collet chuck I would be ahead of the game.
What do you guys think about this?