• Upcoming updates
    Over the next couple of weeks we will be performing software updates on the forum. These will be completed in small steps as we upgrade individual software addons. You might occasionally see a maintenance message that will last a few minutes at most.

    If we anticipate an update will take more than a few minutes, we'll put up a notice with estimated time.

    Thank you!

Search results

  1. part-timer

    Has anyone here used diamond grit lapping film for graver sharpening?

    Thanks for that, Larry. The Work Shop website indicates that the 3000 comes with 2 glass wheels in the box. The manual states that the wheel speed is 580 rpm. The 3M diamond lapping film discs come in a variety of diameters including 6", with micron grades ranging from 9 microns down to 0.1...
  2. part-timer

    Has anyone here used diamond grit lapping film for graver sharpening?

    Thanks for the input - much appreciated. Experimentation will commence as soon as a selection of the 3M stuff arrives. ...Doug
  3. part-timer

    Has anyone here used diamond grit lapping film for graver sharpening?

    Good morning, Dewey. Okay, that's the kind of information I'm looking for - actual experience with the 3M 668X lapping film. You say that it rounds the cutting edges because of yielding to pressure... do you recall if the amount of "edge rounding" varied with the amount of applied pressure? The...
  4. part-timer

    Has anyone here used diamond grit lapping film for graver sharpening?

    So I called Taylor Toolworks and they told me that the substrate is polyester film, 3 mils thick (which means 0.003"). The instructions that come with the lapping film say that you first have to thoroughly clean whatever you're going to adhere the film to, and take care because even one dust...
  5. part-timer

    Has anyone here used diamond grit lapping film for graver sharpening?

    I agree with you; the substrate is important to know. If the 3M product uses some hyper-thin acetate or similar substance, it would be vulnerable to piercing/tearing from the very edge you're trying to sharpen. I don't know why both 3M and Taylor Toolworks would neglect to identify the...
  6. part-timer

    Has anyone here used diamond grit lapping film for graver sharpening?

    I recently ran across a 3M product called diamond lapping film. It's made in either round discs or rectangular sheets. It's available at Taylor Toolworks. They make it in various grit sizes, ranging from [125 micron = 120 grit] all the way up to [0.1 micron = 200,000 grit]. Has anyone here had...
  7. part-timer

    Surface grinder for small parts

    The only ways I know about that can achieve perfect flattening is surface grinding and scraping. Others may know about another way.
  8. part-timer

    Home Made Pivot Burnisher Arbor Set

    That's fascinating! Nicely done, bchaps. You're the only one I've ever seen reporting making your own, besides myself! Some years ago, I began making sets of very similar pivot-polishing/burnishing arbors. My method was different, I never thought of using a slitting saw on a drill press! The...
  9. part-timer

    Waltham Factory Sixis Tool

    You're very welcome. One thing I think could be improved with this forum would be a central place to upload pdf files and the like. Seems to me that it would be useful to make certain rare books available to those who are interested. As it is, leaving files like these buried in a thread render...
  10. part-timer

    Waltham Factory Sixis Tool

    I just uploaded the Tarasov book to both my Dropbox account and my Proton Drive accounts. While I was at it, for no reason at all I also uploaded Foundations Of Mechanical Accuracy by Wayne Moore, and Lessons In Horology by Jules & Hermann Grossmann. Links to Technology Of Watch Production...
  11. part-timer

    Waltham Factory Sixis Tool

    I have the same issue. I am, at this moment, logged into my Google account and I get the exact same notification that you are getting ... You Need Access. The issue seems to be with "Google Drive", which is a cloud-based storage service. If this publication is as helpful and important as it...
  12. part-timer

    Help with a ID for a few items

    I agree. The first three pictures are of a Barkus set. I recognized the ivory-colored plastic case. Can't say anything about the other pictures.
  13. part-timer

    What's this tool called?

    I have to agree! It appears to be quite well made. And in good condition, as well. I'd be proud to own it, as I imagine most of us here would be.
  14. part-timer

    What's this tool called?

    Thank you all, gentlemen. After a bit of poking around the internet, the important search term to include is "offset" tap wrench or handle. I see that other makers besides Irwin make them, among them being Hanson and Vermont American. I have a very small tap (a #5-40 bottoming tap) that I need...
  15. part-timer

    What's this tool called?

    I'm based in the USA, but I found this picture on a now-closed UK-based eBay auction. I'd like to have one - does anyone here happen to know what they're called? And if they're commercially available? If I can't find one to buy, I might have to make one - or have it made for me. Thanks in advance.
  16. part-timer

    What To Use A Mill For?

    This thread has made me miss having a bench-mounted milling machine. I had one of the Little Machine Shop mills for a number of years, and I often found myself using it more than my lathe. We moved cross-country, and I decided to sell it. The Sherline mill seems like a viable candidate to...
  17. part-timer

    Levin lathe headstock spindle removal

    Thomas, just a thought... instead of having an extra oil cap made, you could remove the one you have and stuff a little piece of felt rope inside each oil cup. That's what I did with my Rivett model 2b lathe, and it does a fine job for me. The felt keeps out any dust. It also captures and holds...
  18. part-timer

    Levin lathe headstock spindle removal

    That's great, glad it was easier than it seemed to be. The surface rust on the spindle must have been a simple matter to clean up, was that the case? Anyway, glad you got that taken care of!
  19. part-timer

    Levin lathe headstock spindle removal

    That's brilliant; I forgot about double-setscrews. I haven't seen it done in years!
  20. part-timer

    Levin lathe headstock spindle removal

    It's very unlikely, but not impossible that the oil cup bottoms could be hanging up on the spindle. If it was me doing the restoration, I would begin by realizing that the best restoration is a thorough restoration. That being the case, the oil cups have to come out. Once they're out of the...

Forum statistics

Threads
178,955
Messages
1,569,593
Members
54,026
Latest member
IndyF1
Encyclopedia Pages
909
Total wiki contributions
3,088
Last edit
Swiss Fake by Kent