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  1. Das Cue-Boot

    Nice new cloth, but...

    Maybe they're saving space by being able to do both craps and pool on the same table.
  2. Das Cue-Boot

    Broken pool cue

    Yes. That is the area with the highest stress, so a flaw or microfracture can grow from that point. Many of the larger cast components exhibit what we call brittle fracture, which is where the material is not resilient and the crack grows almost instantaneously. Wood will do this under some...
  3. Das Cue-Boot

    Broken pool cue

    Along with DeeDeeCues very good description of stress risers, we delve into fracture mechanics as well. The point about rounding the pin is very good. The stress at a point is proportional to 1/(radius squared), so giving it a larger radius at the square end reduces the stress concentration at...
  4. Das Cue-Boot

    SHIPPING...still usps after new $15 fee? How do you ship?

    I use them a lot and they work really well. They seem to get the same discount as ebay.
  5. Das Cue-Boot

    National Gandy Classic Cue

    This is a National Gandy, hand made cue from the 1980s. This was the period when Ricco Cervantes made cues for them, so he may have had a hand in the design but there is no proof he actually made this one. If you look closely at the pictures it is clear that this is hand made and inlaid...
  6. Das Cue-Boot

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Perhaps too much politician influence in ChatGPT. Just spent three paragraphs saying essentially nothing and being non committal about that to boot.
  7. Das Cue-Boot

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    And if you read his fine print he is very careful to qualify this by referring to cue tips normally used for play under normal conditions. Like so many characteristics, this model works well for normal conditions. We are also talking here of static, not dynamic friction coefficients. At...
  8. Das Cue-Boot

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    I put a bunch of tips on my high precision scale the other day (reads to 1 mg, but breathe on it wrong and it varies by a few mg). Density differences are overwhelmed by the dimensional differences, essentially the thickness of the tip, and there were some cases where a soft tip was more dense...
  9. Das Cue-Boot

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    The original is off copyright, so you can download a pdf of Coriolis’s work as it was originally published. Google has a project where they are attempting to preserve all of these classic works in their original form. Search for “Theorie Mathematique des effets du jeu de billiard google“ and...
  10. Das Cue-Boot

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    I think what we are seeing is that there isn’t that much difference between a soft and hard playing tip. The contact time differences should come as no surprise—you can come up with essentially the same numbers by carefully stepping through his older high speed videos. Playing tip contact...
  11. Das Cue-Boot

    Schon CX75

    Pm’ed with questions and offer
  12. Das Cue-Boot

    Wanted: Decent Inexpensive break cue

    Sent you a PM with details of an offer. The notifications for those sometimes get sent to junk mail.
  13. Das Cue-Boot

    20 dollar chalk?? What’s the world coming to?

    Not just saving equipment, it is labor as well. I get out the vacuum once a month instead of once a week, so that is 30 plus times a year I don't have to go find it, a power cord, attachments, and actually do the work. Time is worth something for me. As for equipment, it is a bit harder to...
  14. Das Cue-Boot

    Variance in deflection among shafts from same manufacturer?

    Let me give you another, somewhat darker, scenario. With the very high cost and high profit margins on CF shafts, I wouldn’t be surprised to see counterfeits showing up on the used market. We still see this in the tennis world even after prices dropped to somewhat reasonable levels. You might...
  15. Das Cue-Boot

    Another free pool book raffle

    So most everybody has their projected total scores in for the game this weekend. Here are some totally useless stats for you about past Super Bowl scores: Average total score: 46.1 points Highest total score: 1995 when San Francisco beat San Diego 49-26 Lowest total score: 2019 when New...
  16. Das Cue-Boot

    20 dollar chalk?? What’s the world coming to?

    Sounds like my piece of Pyro. I would love to try out the V10, but figure I’m not in for a replacement until the end of next year at this rate, and I probably play or practice 10 hours a week.
  17. Das Cue-Boot

    Does Taom V10 only come in green?

    Agree across the board with Rocket. I have a nearly new block of Pyro, or at least it looks nearly new, only been using it for three months, figure I’m in for replacing it late 2024. Doesn’t mark my gray green cloth. If you are really worried about it, I’ll trade you nearly new Pyro for...
  18. Das Cue-Boot

    Interesting question for carbon fiber shafts

    You can get the weight distribution without foam, but many of the top brands are foam filled since it absorbs some of the high frequency vibrations. They do a pretty good job of helping with tennis elbow. We unfortunately associate foam with things like whipped cream and beer, and neglect...
  19. Das Cue-Boot

    Elk Master Tips for Trade

    Thanks Lyndy. I'll PM an address, although a handful of these will keep me in spare giveaway tips for a long time. In return, I'll give away the 12 mm Elk Master tips to anyone who can use them. I may keep one or two just to see how it feels on my 11.9 Becue, but I think you hit it...
  20. Das Cue-Boot

    ...And People Complain about $20 Chalk...

    I figure it is probably number 43 on the list of things I need to be a better player, so will be able to concentrate on the other 42. I was simply looking at a simple cost benefit analysis that would make it a better choice for me even if Master was free.
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