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  1. W

    Scroll saw advice sought

    Yep, made one myself from an old jig-saw attachment to a drilling machine: Filing Machine Was also lucky that someone sold new old stock of Vallorbe machine-files in small sizes and various cuts. I think I spent about 200€ on some ten years ago for the 240 (packs of ten) or so for this...
  2. W

    Scroll saw advice sought

    A die-filer would be a good choice, but I only know of one Swiss company that still makes them. Otherwise it would be a kit or an antique, second-hand machine, which is difficult to find.
  3. W

    Source for spade-/flat pivot- and EUREKA drills Down-Under

    Oh, he just wants to drill holes into some parts made from thin brass sheet.
  4. W

    Source for spade-/flat pivot- and EUREKA drills Down-Under

    Thanks, Jerry, I am indeed very well aware of the merits of quality tools. I tend to look into industrial suppliers and shun model hobby suppliers, as they thend to sell low-quality tools at elevated prices to ignorant model-builders. On the other hand, when you do things as a hobby, price is...
  5. W

    Source for spade-/flat pivot- and EUREKA drills Down-Under

    Thanks. I have a set myself, but the issue is, where to find them in Australia ...
  6. W

    Source for spade-/flat pivot- and EUREKA drills Down-Under

    A modeller colleague in Australia is looking for a supplier for the above drill types. Any ideas and suggestion. Thanks on behalf of this colleague ! P.S. Do not suggest to make the spade drills yourself, as he does not have the equipment to grind the points of drills down to 0.3 mm diameter.
  7. W

    Making a Crystal

    Here you are, an image from a 1911 catalogue. Unfortunately, I only own one half of an orignal one ... it came to me in a box with odd lathe items many years ago. The face of it slightly dished.
  8. W

    Making a Crystal

    Nice piece of tool-making. In the old days there was a tool for this, consisting of two cork-hemispheres with metal fittings to provide two male centres. The crystal-blank would be wedged between the corks, the assembly run between two female centres and driven by a dog. I think they were sold...
  9. W

    Levin thread cutting

    I think the issue of rpms in turning is somewhat overrated and only really relevant in a production environment, where a specified surface quality has to be achieved in the shortest possible time. What is more important is the relationship between rpm and depth of cut. In our artisanal and hobby...
  10. W

    Levin thread cutting

    It seems that quite a few manufacturers of bench lathes made such attachments that drive the x-axis of the cross-slide through a universal shaft. Here is my own example from Lorch, Schmidt & Co.: When cutting threads, I rather drive it through the hand-crank that I have added to the main...
  11. W

    Levin thread cutting

    Ah, ok, that's kind of cheating with semi-NC ... ;)
  12. W

    Levin thread cutting

    How do you control the pitch without changewheels ?
  13. W

    Graver Sharpening Machines

    I gather, if you touch up a hand-graver with a diamond-wheel, thrust-bearings would not a big deal. I had been envisaging more serious grinding of lathe tools with it, which puts both, axial and radial stresses to the grinding wheel.
  14. W

    Graver Sharpening Machines

    Some 15 years ago I bought a bracelet cutting machine for exactly the same purpose, but then did not follow the project through, because I found its bearing arrangement not very convincing. There is no axial thrust bearing (which is not needed for the original purpose of the machine, of course)...
  15. W

    Mystery measuring tool

    A wild guess: jewels ?
  16. W

    Levin Hard Lathe Tailstock Alignment Issue

    You said, that the tailstock runs true, but is the tailstock axis actually horizontal? Just a fraction of a degree off, would cause quite a dip. You can test this e.g. by checking, whether the offset changes as you move out the runner/spindle.
  17. W

    Thread chasing Instrument lathe info/help

    Thread-chasing lathes were mainly used in the optical industries, where you would need precision threads of short lengths. Basically, there were two designes, one by which a rear steel-holder was moved along by a bar that is connected to the cartridege via the star and the second by which the...
  18. W

    Celluloid tool handles

    Looks, as if someone used pen-blanks to make them. Such pen-blanks can be found at speciality suppliers and, of course, on ebay & Co.
  19. W

    beginners lathe

    Just to note, when budgeting, that the basic machine typically is less then half of what you need to spend to make it a useful tool - chucks, collets, other accessories and lathe tools can easily double the price of the basic lathe. Another rule of thumb seems to be that one should buy a lathe...
  20. W

    What thread

    A Schaublin-catalogue with all the relevant dimensions is available here: http://www.schaublin.de/PDF/spannwerkzeuge/Gesamtkatalog-Spannwerkzeuge.pdf. You have to check wether your's are type B (thread nominal diameter smaller than shaft) or W (thread nominal diameter the same as the shaft)...
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