Recent content by Mike Dempsey

  1. Mike Dempsey

    3D Printing Clock Parts

    RC, Your asking a very difficult question. It really depends on what your trying to do. I will try to answer it the best I can, the easiest part first. The cost of 3D printers are coming down in price dramatically over the past year. You can buy one for as little as $100.00. I would suggest...
  2. Mike Dempsey

    3D Printing Clock Parts

    Well, If I'm reproducing a case part I use a 3D scanner. The scanner will make a 3D image that I import into the computer, and then send it to the printer. If I'm designing a part, I use AutoCAD Inventor which is a 3D drawing software.
  3. Mike Dempsey

    3D Printing Clock Parts

    Yes, it is a mixture similar to the metal. I use coconut wood. Its easy to sand and takes stain very well. It is the choice for moldings. For more strength, I use bamboo wood. Its very hard. I have printed many wooden clock wheels and pinions for wood works clocks. They print perfectly and run...
  4. Mike Dempsey

    3D Printing Clock Parts

    I now print in metal on my printer. I print in stainless steal. copper, brass, and bronze. The metal is 70% metal powder, 24% plastic. This is the formula for printing in most standard 3D printers. If you are reproducing case parts or finials this stuff is great. After printing, I use steal wool...
  5. Mike Dempsey

    3D Printing Clock Parts

    Dave, I have designed and printed many verges for clocks. I have one that is my own clock that I printed out of nylon. The clock is a 30 day Seth Thomas clock. It has been running for over a year with no sign of ware on the pallet faces. That all being said, I would never leave a plastic verge...
  6. Mike Dempsey

    3D Printing Clock Parts

    David, here are some images of 3D metal printing. I thought I had a picture of the verge that I had him print, but I can't find it. The cost of having the verge printed was very expensive. When done, it needed a lot of polishing to get it to work correctly. I have been making verges for years...
  7. Mike Dempsey

    3D Printing Clock Parts

    Dan, Yes I have had parts printed in metal. I have a guy in Chicago that I use. The metal printers are very expensive but have also dropped in price over the last year. The quality of the metal parts is still crude as far as clock parts. You have to do a lot of filling and sanding on them to...
  8. Mike Dempsey

    Adjusting and Making a Deadbeat Verge

    309841 I have also wrote this article on the deadbeat verge. Please feel free to download it and ask if you have any questions. I had to remove some of the technical stuff due to the size of the attachment. I will be posting many more articles in the coming weeks if people want. Please enjoy...
  9. Mike Dempsey

    Adjusting and Making a Deadbeat Verge

    309841 I have also wrote this article on the deadbeat verge. Please feel free to download it and ask if you have any questions. I had to remove some of the technical stuff due to the size of the attachment. I will be posting many more articles in the coming weeks if people want. Please enjoy...
  10. Mike Dempsey

    3D Printing Clock Parts

    I wrote this article on 3D printing and was going to have it printed in the bulletin, but decided to have it put on the message board. If you have any questions about the article, let me know. Mike Dempsey
  11. Mike Dempsey

    Vibrasonic A800 Cleaner, (needing a schematic)

    Looking for a manual and or a schematic for this cleaner. Anybody have one? Thanks, Mike
  12. Mike Dempsey

    $ McClintock Clock

    Looking for any information on this clock. Anybody know the value? Mike Dempsey
  13. Mike Dempsey

    Is this verge too far gone? Or should I start filing and hope for the best?

    I would suggest taking the Field Suitcase Course on the Dead Beat Escapement. One is being offered at the National Convention this year. In this class you will learn how to repair and replace / make a verge from scratch and then properly adjust the escapement. This class is well worth the money.
  14. Mike Dempsey

    American PW 4992b disassembly

    I finished a 4992B last month for a customer. The man paid 175.00 to have it "cleaned" by another watchmaker. The watch ran but had maybe 180 degrees of amplitude. The watch timed perfectly dial up, but was all over the board in any other position. He was very unhappy with the watch. After...
  15. Mike Dempsey

    American PW 4992b disassembly

    Ben, I guess you are right, but ASSUMING that anyone who charges 500.00 is "over charging" is also a very dangerous assumption.

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Rockford's early high grade movements by Greg Frauenhoff