Dewey;
Agreed. I have a nice B&L zoom boom mounted scope on another machine. Its base is large and heavy. I wanted a portable setup for several specific jobs that I do. The light weight scope fits the bill and everything hooked to the Borel base makes it a breeze to move around. I could...
It has been well documented that thread forming (displacement) tooling lasts 20 times longer than thread cutting tooling. Screw plates 100 years old are still forming good threads. To single point the assortment of threads on my screw plates would take a mountain of change gears for a lathe...
Since the threads in the example above were made by forming (displacing metal), there were no chips involved - hence no cutting. If you had ever used thread forming taps or threads rolls, you would understand what was happening. Lubrication is essential. A drop of oil in the clearance holes...
I picked up this Peerless/Marshall 8mm WW lathe, motor, control, and base today. In addition to a nice collet assortment, it came with an attachment that I had never seen before. See pics.
I have and regularly use a Gorton 3U pantograph. If I was making a "run" of the same design, I might consider using it for making parts. Each part requires a good template. For one off items, it would be a very inefficient method of working. To easily make the custom templates, I would cut them...
I needed a dust cap for an old WW lathe that I am setting up for snailing - so here is how I made it...http://jamesriser.com/Making%20a%20New%20Bearing%20Dust%20Cap.pdf
I have a 4th axis for a Roland CNC machine that has a black plastic 4 jaw chuck. These were designed for holding machinable wax while it was being cut. The wax was used for lost wax type of jewelry castings. Detail can be very good. There is very little strain on these chucks. 3 jaw chucks...
Technomaniac,
Here are the best sources that I have in my library:
Wheel Cutting Practical Notes for Clockmakers from Chronos Limited 1979
Clock Wheel and Pinion Cutting by J. Malcolm Wild 1983 Argus Books Ltd.
The Clock & Watch Makers Guide to Gear Making..."and other machines" by Robert D...
For one offs to replace oddball screws I prefer one of my many screw plates. For my uses (production work on custom spring powered motors) I prefer the lathe setup. Taps and dies are cheaper but I can make virtually any size that I might want with the lathe - including matching taps. For the...
As one who has tried thread cutting both with a 2 and 3 way slide, I am telling you that the 3 way is by far the better setup. By cutting only one side of the thread, you can avoid deflecting the metal being threaded and can cut threads without requiring tailstock support. Metals cut so...
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