Jump to content

jdm

Member
  • Content Count

    3,881
  • Joined

  • Last visited

  • Days Won

    106

jdm last won the day on November 12

jdm had the most liked content!

4 Followers

About jdm

  • Rank
    Replendo Textus

Recent Profile Visitors

24,490 profile views
  1. Here's one type that I intend to build at some point http://www.deansphotographica.com/machining/projects/filingrest/filingrest.html I have re-edited this as PDF to make it easier to print and attached here. As I began a bit of machining hobby I collected some references sheets on complicated matter of steel types and nomenclature. The shortest resume I can give US 12L14 = EU 11SMnPB30, 11SMnPB37= UK EN1APB, 230M07PB = Leaded, the most machine friendly type ever, is what I use when I can US 1213, 1215 = EU11SMn30 = UK EN1A, 230M07 = as above, unleaded US 1021 = EU C16, C22 = UK 070M30, 080A15, EN3B = Bright Mild steel Sandvik AP20 is, I think, very different altogether Filing Rest (1).pdf
  2. Maybe it was mean to show him dropping the bad habit. He stopped smoking in 1973, a bit late as he only lived until 1976. http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0256-95742009000500012
  3. Have you tried a "line free" box or demagnetizer to give it a kick start?
  4. I suspect the mov't is designed to have seconds either central or at 9 with just different assembly. But in this case, to add visual attractiveness, the oscillating bar was added. Zuan means jewel in Chinese. ZLC is for Liaocheng Watch Factory. http://chinesewatchwiki.net/Common_markings_on_Chinese_watches
  5. Sorry, which clutter? If you are not interested in that section or any other just look for new postings in the sections that you like to read. I think that it's just polite to introduce oneself before asking questions as this is a friendly forum unlike Quora and other fast-paced, solution-oriented ones. As well polite to extend a personal welcome, perhaps with some appropriate line, that said from somebody that doesn't do that much often.
  6. Vise grips are mentioned, if you want to do that or any other brute force method that is, of course, entirely up to you.
  7. If the pins are covered, being invisible to the eye there is no specific tool. One would need to precision drill and destroy the cap, then replace it it and polish together to the link, or fit a collet and leave the hole being visible.
  8. With browser copy and paste. Go to desired topic or website, click address bar, copy. Then paste into any other topic or whatever else.
  9. Feel free to link it anytime. Also, moderators can make it pinned and/or starred, so it stays on top of the topics list.
  10. jdm

    Hi

    Welcome, and good luck!
  11. I don't know of a book but you can get a starting point by the video below, and the many, many topics on this forum that you can find using the search box top right.
  12. As mentioned you would fit as was originally done with a clear cement (Ultra Violet curing type, or not), but you can also use a nylon gasket, with a mineral crystal IMHO that's more practical.
  13. I was thinking that with a domed crystal it may be needed to use a concave top die to avoid the risk of breaking it. It may or may be not in the set that comes with a press. After all it can be more expeditious to get the crystal then bring it to a watch shop for installation. Some battery change booths are good and equipped for that.
  14. I must say that with the better quality ones mentioned in the topic above I could open bazillion watches and a Swiss made one would not make any difference. The real issue comes with extremely tight casebacks for which you want a bench opener, or at least an excelled holder block and a two handles opener.
  15. I think that can be caused only by the square pieces that hold the bits to be different height, and/or the bits themselves to not be accurate. It should be correctable without any special tool. Check that the square parts mentioned above are assembled correctly, that is they are inserted on the same turn of the threaded bar. Also, avoid tightening their knobs, so they can align better.
×
×
  • Create New...