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  1. Leonardo

    Straight line engine question - chatter?

    Hi Paul, Something is varying the distance between the plate you want to engrave and the tool. I would look for some play in the tool head and also in the plate support. Just a very little play will cause this effect. Another things that I would inspect are the gears. I would look for burs or...
  2. Leonardo

    Announcement: Iconic Scrolls practice plate

    Great idea Sam! It is a beautiful plate showing five engraving styles. Although the laser marks looks very shallow they will help to guide the cuts. Congratulations!
  3. Leonardo

    Question: Engrave Motorcycle Parts

    Hi and welcome! I will answer another question: Arnaud Van Tilburgh is a member of this forum and he lives in Belgium (Antwerp if I remember well). He is a very smart and nice person that I had the opportunity to meet in person in Basel. He is also a great jeweler and engraver and, if he is...
  4. Leonardo

    Rod Cameron: an appreciation

    Really sad news. Rest in peace Rod, my friend.
  5. Leonardo

    Happy New Year and thank you

    Thank you Marcus. Hope you have a great 2024 too!
  6. Leonardo

    Question: Narrative engraving

    Wow! When I see things like that I think "this person is a genius"! If you weren't a genius, how the hell do you get someone to pay for something so (choose your adjective) like that? Please excuse my outburst of honesty. :oops:
  7. Leonardo

    Ivory substitute

    Hi Guido, No, unfortunately I cannot help you with this. I do not know any artist with this name and also I do not know anything about collection's boxes. By the way, we were talking about ivory substitutes! If you have a personal interest not related with the original object of a thread, I...
  8. Leonardo

    Ivory substitute

    Do not forget the Tagua Nuts, also called vegetable ivory. More info in the following links: https://en.wikipedia.org/wiki/Vegetable_ivory https://www.nayanayon.com/shop/tagua/tagua_crude_dry_selected_nut.asp
  9. Leonardo

    Denatured alcohol to remove shellac destroys the polish

    Hi! I cannot understand you very well because you said: " I do the engraving, and then leave the piece in denatured alcohol." and then you said: "And I can't dip it in denatured alcohol (it is dulling the piece)." Also, what enamel are you talking about? Anyway, have you rinse the piece very...
  10. Leonardo

    Am I too slow?

    My pleasure! You will be faster with the practice but quality engraving is a slow process. Will wait until some of the Masters here chime in. :)
  11. Leonardo

    Am I too slow?

    I think that the engraving will takes what it takes until you feel yourself satisfied with the quality of your work. The most important thing, in my opinion, is in what canvas you are investing your time and effort. It is not the same working in a gold piece or in a brass piece. Also the brand...
  12. Leonardo

    Looking for watch dial information...

    New Hermes started their business in the USA in 1938 producing small engraving machines (pantograph) but also there were other companies there making bigger machines. These kind of machines existed in Europe even many years before that. Your watch dial was made of brass or bronze, painted in...
  13. Leonardo

    Looking for watch dial information...

    Hi, and welcome to the forum. It appears to me that it is machined with a ball nose cutter. Well I am almost sure of that! It is more evident in the cross path in the number 8. Also, the numbers 2 have no any difference between them. Same with the numbers 1. Just my two cents!
  14. Leonardo

    Example of how not to do it.

    In addition to a horrible design, I think it's laser marked. Really a pity!
  15. Leonardo

    How to hammer this pattern into a die for fine-silver coinmaking

    I would suggest you to contact a mechanic workshop with a EDM machine. (EDM: Electrical Discharge Machining) This machines use a copper electrode previously mechanized or engraved with the shape you want to reproduce on the steel to erode the shape on the surface. You can engrave a thick piece...
  16. Leonardo

    Critique Request Translucent powdercoating over engraving

    Hello! I think it looks nice and surely will protect the engraving but also it makes the engraving looks flat. When I read your post I remembered that I have a little enameled sterling silver box that I bought in an auction some years ago. It was not so expensive because it has a crack but I...
  17. Leonardo

    Engravable planes

    Thank you John! Have a nice weekend!
  18. Leonardo

    Engravable planes

    Yes, they are very nice! Some years ago I engraved one of these as a sample with the Artesa machine.
  19. Leonardo

    Bausch and Lomb 4

    My microscope has a 38 mm diameter tread, anyway it would be better to measure yours just to be sure. Google search for something like this and you will find what you are looking for: 0.5X Auxiliary Objective Lens for Bausch & Lomb Microscope D38mm
  20. Leonardo

    Bausch and Lomb 4

    I have a B&L StereoZoom 4 and, as Sam said, the problem to add a ring light to it is its shape. You must add an accessory to it to be able to attach the light. I was lucky enough to find a glass (just a simple glass, no a lens) to protect the optics from the fumes produced when soldering...

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