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  1. AJSBSA

    Knew Concept piercing saw

    Last Christmas I got a present of a Knew Concept piercing saw one of the all singing and dancing ones, it was an big improvement on the Grobet I had been using although the two large blade clamping nuts are too big so will be replaced with hex bolts . A couple of months ago a simpler Knew came...
  2. AJSBSA

    Buying A Lathe

    An interesting discussion, I think in metric but have no problem using an imperial lathe with a metric micrometer 4 thou is 0.10mm, 10 thou is .25mm, 20 thou is 0.50mm an easy mental exercise. What is completely incomprehensible is the fact you guys dimension drawings in decimal fractions 13/64...
  3. AJSBSA

    bushing machine plans

    Workshop Techniques by Geo H. Thomas revised by Bennett has all the drawings and more including the best dividing head I have ever seen for clockmaker
  4. AJSBSA

    Dividing and gear cutting equipment for clockmaking

    In my past life as an Engineer dragging very skilled draftsmen from their drawing boards onto CAD and as a Software Engineer writing cad/cam software for others to use I find using tools in the more traditional manner just as I did when I was an apprentice refreshing but can understand the...
  5. AJSBSA

    Dividing and gear cutting equipment for clockmaking

    If you are in cutting wheels every other day sure buy or make a cnc rotary table, but if you making wheels for clock repair a 60:1 dividing head with standard plates should cover everything with no counting once you set the arms certainly that has been the case for me and I have cut a full set...
  6. AJSBSA

    Dividing and gear cutting equipment for clockmaking

    On a normal dividing head there are two arms on the dividing plate which you move to the stop pin after each cut so it is very difficult to lose count in fact there is no counting at all
  7. AJSBSA

    bushing machine plans

    I built my own bushing tool over five years ago now and I use it most days, my main issue with the commercial ones is the bearing is too far away from the cutting so any play is magnified to an unacceptable level in my view if the machine does hold the reamer true to the original position then I...
  8. AJSBSA

    Dividing and gear cutting equipment for clockmaking

    This setup has been working well for me for years I can see all round it and I am not winding a heavy spindle and motor up and down with and against gravity
  9. AJSBSA

    Wheel cutting backing plate material and wheel blank holding

    I always cut two, it is great to have spare if you make mess of crossing out, I use the same chuck for both the lathe and the mill operations it has an adjustable backplate if the wheel needs a tweak to bring it concentric, and I also cut full depth in one pass
  10. AJSBSA

    Working on clocks, which small lathe?

    Something to consider is that with an adjustable backplate and a quality 3 jaw chuck you can not only hold arbors as accurately as a good collet but barrels and wheels as well, a good four jaw will with a lot of messing about work as well, but an adjustable backplate has fine adjustment which...
  11. AJSBSA

    Optivisor Headband Cushion Problems

    I think you are all very silly :p
  12. AJSBSA

    Optivisor Headband Cushion Problems

    If you look at my avatar you see me wearing a leather Australian hat had it donkey's years worn it all over world, motorcycled all over Scandinavia and northern Europe on my 1950 Sunbeam motorcycle always worn that hat outside my tent or sod roof hut never caused me a problem so I think I will...
  13. AJSBSA

    Optivisor Headband Cushion Problems

    Very good point I worried about that too, which is why I went for vegetable tanned but otherwise untreated leather it was the plastic that was causing me problems but something to look out for.
  14. AJSBSA

    Optivisor Headband Cushion Problems

    Jerry I find the optivisor works very with my varifocal glasses with no eye strain and of course wearing and looking through are different things I find the Optivisor so comfy to wear that I rarely take the thing off just flipping the visor down when needed. But I thank you for bringing the...
  15. AJSBSA

    Optivisor Headband Cushion Problems

    I like the Optivisors very much I have four of them after all, but because I wear them for hours at a time the plastic cushion headband starts to disintegrate I double side taped a thin leather strip to make it better This worked for while but once the sweat soaked through it was just a mess...
  16. AJSBSA

    A Better Clockmakers Jig/Fret/Scroll saw

    I looked up the Rockwell Scroll Saw and I thought it looked interesting and the perfect size for clock work, I could not see the mechanism though. We have been fostering for the last 15 years and I have taught loads of kids how use my little Cowells jigsaw this clock was made by a nine year old...
  17. AJSBSA

    A Better Clockmakers Jig/Fret/Scroll saw

    Oh just to explain I took the original U bar off because A, it was not needed and got in the way, B it was not rigid enough and using the big 6mm hex bolts you can position the guide very precisely indeed this assures a very good finish to the cut.
  18. AJSBSA

    A Better Clockmakers Jig/Fret/Scroll saw

    I been toying with this for some time I enjoy the challenge of using a piercing saw and I have made several clocks using this technique but I am not great and my efforts require a lot of laborious filing. I am a bit of Cowells machine tools fan and their Jigsaw is very expensive new however not...
  19. AJSBSA

    Lathes and Mills Discussion

    The Toyo-Sakai ML1 Camera lathe is certainly robust with 12mm through the hardened spindle running in precision ball races with a cast iron bed but at the end of the day any clock lathe needs to be able to this, note I use an adjustable backplate rather than collets French Pivots...
  20. AJSBSA

    Lathes and Mills Discussion

    I was a machinist before I was a clockmaker so I have always have at least one of each I was making clocks before I started into clock repairs been repairing clocks for the trade and the public for over ten years now. Being able to make your own tools and repair or make parts keeps the costs...
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