szbalogh

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szbalogh last won the day on August 7

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About szbalogh

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  1. Polishing acrylic crystal

    Thank You! Not even a slightest scratch after diamond. Did not allowed to get to hot and was not pushing it hard. Felt with my fingers, as it started warming i used another part of the paper. Ah the spinning speed is important! You see the DC motor in the background is a car fan motor used at 5V. It has a small plley wheel and the shank has a much bigger. The spindle is between 1000 and 2000 rpm. This is why i was posting it, i was also surprised from the result.
  2. I was not hoping that it will turn out good but it did so no video of this only some bad pictures. Komandirskie crystal was mounted on the spindle chuck nut with hot glue. Sandpapers and diamond paste up to 10000 grit were used to polish the crystal. It was full of scratches, deep dents and there is also a crack. The latter is of course still there but this was my experimenting pice. The whole project took only 15 minutes !
  3. Oil pallet fork jewels

    Here also it depends on the size of the watch. In this case a ladies size watch, definitively no oil for the fork pivots. Why? That pivot is not turning in the hole jewel just flipping in a small angle. On the other hand, torque is the smallest here and it has a really small weight. Even the finest oil could make it stick. I have an acquaintance at TAG Heuer, i was speaking to him two days ago for two hours and half hour we were just talking about this topic they dont apply oil on the pivots just on the pallets. But, to add my own experience. I did not know of this in the beginning (tinkering watches only for 2 years now) i was applying oil there and those watches are still working fine. Maybe we could see something unwanted noise on the timegrapher in scope mode caused by the slow switching of the fork.
  4. Oil pallet fork jewels

    No oil on the pallet fork pivots. Only on the pallets.
  5. 20170815_213008.jpg

    From the album Bluing screws

  6. Bluing screws

    My first bluing experience The three long screws were the first poor guys. I will polish and reblue them.
  7. 20170815_212901.jpg

    From the album Bluing screws

  8. 20170815_212837.jpg

    From the album Bluing screws

    Refurbished India contact dial lumed... and the hands also.
  9. Myiota 2035 or something?
  10. This is so nice job! Is the pad printer a DIY one? In a few decades i will also be able to do this job Next, You could also try to print the lume paint with the pad printer
  11. Can someone explain how to disasseble the screw down type Vostok crown? I mean separating the crown from the stem. Succesfully serviced the Komandirskie movement but i think the crown is worn out. I can hardly wind it.
  12. This is sooo cool! Thank You very much! Ah i wanted to clean the balanve pivots with that pin polisher rubber.
  13. Real antimagnetic watch

    Thank You very much for the link! That tablet is not calibrated with a known field, but if i had one i could calibrate it. It measures up to 3000 Gauss, my old phone did it only up to 250. Now i will check the NMR again with the tablet I did not know but discovered recently that the two main enamel sources are selling now enamel for steel! Did not tried or or neither ordered yet but i will soon. Maybe i will try the enamel for copper tonight on steel
  14. Can someone give me a link to a video showing the reattachment of the hairspring stud to the balance cock of this type: Disassembly was easy, I tried but i couldnt catch it and dont want to brake.
  15. Real antimagnetic watch

    Many thanks for the comment! I have the case and the movement, my first thought was to replace the spacer ring and the dial with something other than simple steel and brass. I have made some experiments which i will show you in a video if i have time to compile. Compared shileding properties of Si-steel (used for transformers), the sames steel heated to ~800 Celsius, Mu-metal and one that was also heated to the same temperature and finally copper. I was using a small neodymium magnet and measured the field with my tablet. I have found that there is basically not much difference between the mu-metal and the steel and the heat treated ones at this low field. It was up to 3000 Gauss if i put the magnet directly on the tablet. I think i will stick to the Si-steel because it is available in large amount (i have one square meter sheet of that , 1.5 mm thick) and it performs just as well like the mu metal. The NMR i am working with is sheilded vertically, it has about 500 Gauss at the sides. Higher field are at the top and bottom openings but i can manipulate there with one hand, changing samples and probehead so that shield up to 3000 Gauss should be enough. Did i mention that i want to make enamel on the Si-steel dial? This is why i checked the heat treated pieces.