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notsodeepblue

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  1. Before purchasing a CUDA capable graphics card specifically for this, it might be worth researching what is going to be involved in going from point-cloud to (presumably) G-code (the instructions needed for most home CNC routers). While I obviously don't know what hardware / software you will be working with, I don't think it is guaranteed to be simple moving from the typical unstructured output of a photogrammetry package to the geometric primitives needed for good G-code.
  2. I seem to rememer seeing a video by (or featuring) Francesco Piasentini - which I now can't find - that showed how MicroCT scans could be used to identify not just the dimensions of the nails, but their arrangement to one another from a scan of an original neck. I believe he is a member here, so perhaps he will notice this and be able to offer you some advice (but he also has a website, so if not...)
  3. Renegade, Is there a reason you are using this new user name to post this violin id request rather than your original (current?) one? If you intended to keep this secret, posting the pictures and text using your 'Renegade' user name before deleting and moving verbatim to RVR was not the smartest move... While answering the many, many tens of posts you have made under your Renegade username, the users of the forum have developed a sense of who you are and why you are posting. By creating an entirely new user and failing to make it clear that it also belongs to you, that connection is lost - your questions under this new RVR id will potentially waste a lot more of other users time unnecessarily, while they circle the same issues with you as before. Just curious...
  4. Do you mind me asking roughly what proportion of instruments you test find their most-significant match in the ITRB (or other generic database) compared to your own instrument-specific database? I imagine that a personally-curated database is the most useful by far?
  5. Have you already found this history of B&O Liberg? https://galootopia.com/old_tools/chisels/swedish-chisels/liberg-chisels/ If you find that you like Swedish steel tools, the page above it can be quite helpful in looking up other similar makers you may not have come across.
  6. That's great information - thanks for taking the time to reply. This is something I had not come across, and once I have a "safety" copy of the deteriorating cast made I will definitely take a look at these options to stabilise the original as they seem ideal. Thanks again.
  7. That's fantastic - thanks very much. It didn't even occur to me to take my own cast, and I will definitely be doing this before even thinking about doing anything to the original. Thanks again.
  8. Would someone be able to offer me some advice on stabilising a plaster cast that is becoming a little “chalky”? I didn’t take the cast myself, so don’t know what it is made from, but it feels and looks like Plaster of Paris. As it’s a cast of a top, I can potentially do a little experimenting on the reverse - I haven't been able to find too much help elsewhere online, but was thinking that a thinned glue of some kind might be a good option? Thanks in advance,
  9. Violins listed for sale on ebay should be posted in the Auction Scroll, not the Pegbox - after more than 100 posts, you really should have figured that out already... https://www.ebay.com/itm/334492649788
  10. Renegade, This video gets posted on different threads rather a lot, but in my opinion it would be well worth you watching a factory violin being made to understand the realities of the construction of the type of instrument you are asking about: https://youtu.be/0SvfNhMlnBE Personally I don't see too many of the employees going through the anguished dscision-making over the finer details that you seem to be ascribing to them via your questions ...but your milage may vary.
  11. If the ebay seller had suggested it was something other than a Thir, would you still be of the same opionion? https://www.ebay.com/itm/165543025266 Personally, I would be very interested to know how you are finding the violins you are posting about: Assuming you are not the seller (an awful lot of the instruments hail from the same seller...) would you mind sharing what search terms have lead you to this motley selection of orange instruments?
  12. Mr Zuger, Putting aside the error-strewn nature of your highly misguided amateur pseudo-analysis, have you ever stopped to consider that it might be the utter contempt you show for other people that stops them engaging with your crackpot ideas?
  13. There are some fantastic pictures here - if you (or anyone else) knows of another thread with peg pictures, I would also be very keen for a link to it: [NOTE: Link to thread doesn't seem to be working - edited to text, below] https://maestronet.com/forum/index.php?/topic/343092-baroque-pegs-and-end-buttons/
  14. This statement brings to mind (for me, at least) the idea of equal-loudness contours, and raises the question of how (or where in the frequency spectrum) real-world violin "loudness" ought to be measured to best match human perception.
  15. I am also getting the same behaviour that Jacob is reporting. Older versions of the same page used to link to the the last comment of a post, and all featured a url that ended "/&do=getLastComment" whereas the current version does not (while pasting this onto the end of the links does work, it is obviously not very convenient). The original link behaviour can be seen using the wayback machine from earlier this year: https://web.archive.org/web/20210716132700/https://maestronet.com/forum/index.php?/forum/4-the-pegbox/
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