06-21-2012, 07:06 AM
Andrew,
It appears that this MLA-21 collet chuck was machined from a kit of castings supplied by a company called Lathe Accessories. It is made of ductile iron, which will machine very well. Unfortunately if the bore is already machined to size, but not concentric, machining it more will only make it oversized. It looks like there is plenty of meat in the casting, so I would suggest boring it out for a press fit sleeve then re-machining the bore concentric and to size. You can buy just the drawings from the company to get the proper dimensions.
The company also sells a number of lathe and mill accessory kits, even a kit for a small diesel engine, at very reasonable prices. I may pick up a kit or two myself since the castings alone are be worth the price of the kits.
Tom
It appears that this MLA-21 collet chuck was machined from a kit of castings supplied by a company called Lathe Accessories. It is made of ductile iron, which will machine very well. Unfortunately if the bore is already machined to size, but not concentric, machining it more will only make it oversized. It looks like there is plenty of meat in the casting, so I would suggest boring it out for a press fit sleeve then re-machining the bore concentric and to size. You can buy just the drawings from the company to get the proper dimensions.
The company also sells a number of lathe and mill accessory kits, even a kit for a small diesel engine, at very reasonable prices. I may pick up a kit or two myself since the castings alone are be worth the price of the kits.
Tom
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