Lathe dogs

adamsgt

adamsgt

Jerry Adams
Bought some drops from Shilen before their move. Planned to use them to try different things on my 12X36 lathe. Picked a up used D-4 dog plate and some lathe dogs. Discovered that the MT5 dead center would not go through the hole in the dog plate. Finally got around to do something about this yesterday and opened the hole up until the dead center would go through the plate. Center drilled both ends of a drop, put on the dog and discovered the the leg of the dog would not reach the plate when the drop was between centers. Looking around on the web I couldn't find much info on lathe dogs where they specified the length of the leg. The lathe is speced with a MT5 taper in the spindle. Could I use a MT4 as it is shorter?
 
no, the mt4 is a smaller dia. You would need an adapter mt5 outside, mt4 inside. Just likely it would end up longer. You could make the dog legs longer - more messing around.
 
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Jerry,

I had a similar experience. This is how I solved it.

Justin
 

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I make my own dogs out of square stock. A shallow opposing V cut to grip the piece, two bolts to tighten the dog clamp, and a drilled and tapped hole perpendicular for the "dog" piece to extend as needed. Different sizes and lengths can adapt to anything.
 
I stopped using faceplates decades ago.
I chuck a piece of round stock in the chuck and peel it to a 30 deg. taper with the compound rest.
Put the leg of the lathe dog against one of the jaws and cut metal. No messing around
 
Joe said:
I stopped using faceplates decades ago.
I chuck a piece of round stock in the chuck and peel it to a 30 deg. taper with the compound rest.
Put the leg of the lathe dog against one of the jaws and cut metal. No messing around
Click to expand...

Saw that on a TubalCain video on you tube last night. Good idea as well.
 
Wayne Shaw said:
I make my own dogs out of square stock. A shallow opposing V cut to grip the piece, two bolts to tighten the dog clamp, and a drilled and tapped hole perpendicular for the "dog" piece to extend as needed. Different sizes and lengths can adapt to anything.
Click to expand...

Took me a few seconds to visualize that but that's neat as well. Three good suggestions, love it. :eek:
 
adamsgt said:
Great solution. Who'd expect less from a man who has a Gerstner tool chest. :eek:
Click to expand...

Jerry,

Ahhhhh yes...Gerstners. A real weakness for yours truly. At four of them and counting. I'm just a sucker for a nice piece of quarter-sawn white oak. Even had them make a table for my mother, which turned out beautiful. Great people to deal with.

FWIW, I made my extended leg dog as I turn between centers just as Joe outined above. About as close to Zip Point Sh!t run-out on a center as you can get.

Justin
 
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