olderdan,
Nice and handy for small holes and can be mounted quickly. I have a couple of 1/4" Supreme drill chucks that have never been used. Now I have a future project.
Thanks for sharing!
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olderdan,
Nice and handy for small holes and can be mounted quickly. I have a couple of 1/4" Supreme drill chucks that have never been used. Now I have a future project.
Thanks for sharing!
I achieve the same high speed drilling or grinding with either an air turbine or electric spindle mounted to the tool post.
Attachment 30152 Attachment 30153 Click images for full size.
Hi Gang:
I helped rebuild a multi station machine that worked like that. For some reason spinning the part and the drill tends to make more concentric holes??
Carl.
Hi Gang:
I help rebuild a machine for drilling valves for gasoline injectors. To keep the holes centered the machine spun both the valve seat and the drills. I don't know why but it kept the drill from wandering and also maintained a good cutting speed. It was quite a machine: twelve chucks holding the parts vertical, one load station, one unload station and ten working stations. Flood coolant for all, the machine was in a Plexiglas case to keep the operator dry.
Carl.
