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Stuart, yes.............I can't put it off much longer. I've been working on my plan on just how to hold the Frame for drilling the Crankshaft holes.
Zee, if you look at the last picture, you can see where I drilled 5/32" for 1/8" and then on through at 1/16". That creates a bit of an oil cup for oiling the Crankshaft.
Yeah, 46 is too big. My guess is hard spots in the iron, you notice if the drills had trouble getting through too? I much prefer cast bronze to cast iron parts.
Jim, great work. I liked seeing the photos that I think show the interplay between the Sherline lathe and mill. Am I seeing that on some processes, you are merely transferring the chuck with the part from the lathe to the mill. If so, I guess that would be very helpful with attaining tolerances. Is this correct? As you and others have said in my thread regarding lathe choice, the milling machine appears to be a necessity.
Quote from: Bear on March 15, 2020, 02:09:55 PMJim, great work. I liked seeing the photos that I think show the interplay between the Sherline lathe and mill. Am I seeing that on some processes, you are merely transferring the chuck with the part from the lathe to the mill. If so, I guess that would be very helpful with attaining tolerances. Is this correct? As you and others have said in my thread regarding lathe choice, the milling machine appears to be a necessity.Good observation Bear. You've just discovered what, for me, is one of the big advantages of the Sherline lathe and mill combination. There are times when I've started with a part in the 3 or 4 jaw chuck on the lathe, then move it to the mill for an operation or 2, then back to the lathe for more work. All while not disturbing the part in the chuck. I'm sure it can be done with other lathes and mills, but have no experience with that. Something else I appreciate is the accuracy of the zero resettable dials. I make lots of use of that feature............sort of a "poor man's DRO". Jim
When I had the mini-lathe and mini-mill, I could transfer chucked parts between them.The biggest issue was taking the chuck off (or on) the lathe because of how it was bolted on. (Tough to get fingers onto the nuts.)That's why I wanted my next lathe to have a cam-lock for the chuck.Makes it much easier to swap the chuck but I hadn't counted on how heavy the chucks are. (Not to mention the risk of dropping such things.)