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Recent content by lucky-guesser

  1. lucky-guesser

    Conversation starter: How heavily do you rely on computational tools?

    Pretty 50/50 between 4 (excel) and 5 (hand). That said, in my mind when you are using a company excel sheet or something written by a coworker, that is a separate category of "I hope this excel sheet formula was written correctly and gives good results". However, when I am using an excel sheet...
  2. lucky-guesser

    Help with gearbox design

    Operating temp will have lots of variables: Max torque load, is that max tq constant or intermittent, will the motor be constant use or intermittent, if intermittent then for how long, and of course your ability to keep things lubricated. Does 50-60C sound right? Maybe. 13k rpm is obviously...
  3. lucky-guesser

    Is there any good CAD software?

    To start off, it's hard to make a recommendation without knowing what it is you are trying to make. Considering you've used the 3 major players (in my industry) and have a fundamental hatred for all of them, there seems to be a common denominator..... Learning to complete a task takes time...
  4. lucky-guesser

    Air Force Diverts Missile Funds To Modify Qatari 747... Money is being taken from Sentinel ICBM program, which is over budget.

    Aerospace is not my area expertise, which if you had read closely you would have seen that I never commented on anything aerospace related. So as far as our professions are considered, I stayed well within my lane. You trying to make judgments as to my qualifications based on this thread is...
  5. lucky-guesser

    Air Force Diverts Missile Funds To Modify Qatari 747... Money is being taken from Sentinel ICBM program, which is over budget.

    "Lucky Guesser", as in my typical username on websites was taken so I spent a whopping 30 seconds coming up with some light irony given it's an engineering website. If you are reduced to attacking my username, please reconsider your life's decisions. I think, I guess, I heard, all phrases...
  6. lucky-guesser

    Air Force Diverts Missile Funds To Modify Qatari 747... Money is being taken from Sentinel ICBM program, which is over budget.

    Hospitals and test labs would get government kick backs for treating Covid patients. They went out of their way to inflate numbers. 1) There were multiple stories of doctors sending in empty, unused swabs that the test lab said tested "positive" for Covid. 2) I had a relative who had a number...
  7. lucky-guesser

    Machine Screw Pull-Out Capacity

    I had a similar conundrum a few years back on a project, couldn't find any data so just ended up having to do my own tests. Agreed with dgeesaman, if you have 1/2" engagement I would suspect that would be plenty. Wouldn't surprise me if you broke the bolt before getting it to pull out...
  8. lucky-guesser

    Stars, upvotes, and likes.

    In my mind, the people that built the site were like "we don't know what style people will prefer the most, upvotes like reddit, liking like everything else, or good ol' star so were just going to do all of them and let people click whichever button they prefer." I would imagine there is some...
  9. lucky-guesser

    Protein Supplementation via BCAAs

    My point was that it is based off of your body weight and not your lean mass, because you end up with a significantly lower number if you go with that. And 1 g per pound is hardly set in stone and I acknowledge that, it's just a good rule of thumb. That said, the article doesn't exactly cite...
  10. lucky-guesser

    Modifying Sheet metal parts

    Solidworks doesn't play nice when trying to change/mix modeling styles. If your corner isn't already a sheet metal bend, then you either started with surfaces or conventional modeling. Either way, trying to make adjustments into sheet metal is likely a lost cause. Start your part over as a sheet...
  11. lucky-guesser

    Protein Supplementation via BCAAs

    The rule of thumb is 1 gram / lb body weight, NOT lb lean mass. And that's for a generally athletic person in maintenance, if you are trying to loose weight while maintaining muscle then you should go a little higher yet. A 200lb active guy trying to loose weight, I'd suggest 220-230g a day.
  12. lucky-guesser

    Turning 316L breaking inserts

    The operator makes it sound like he's been over that bridge a few times but if given the chance to talk to the tool supplier myself, I will certainly do so. That decision was made well above my pay grade and project scope.
  13. lucky-guesser

    Ballistic .50 cal

    Kevlar is still used for pistol rated armor (2A & 3A) but against high velocity, pointed rounds you have to use steel, ceramic, or new to the market is UHMW. It would take a lot of kevlar to stop 5.56/5.45/7.62, hitting it with an AP 50 BMG would be laughable.
  14. lucky-guesser

    Ballistic .50 cal

    I think a theoretical number is possible to calculate, but in reality you will have some not quite make it through and some will likely still be going several hundred feet per second. So, not really "accurate" in my estimation.
  15. lucky-guesser

    Stacking an object

    If they are infinitely rigid, or made of something that effectively doesn't compress like concrete blocks, they will be much easier to stack. You get a stack of boxes that weigh 50lb each, you get 6 high and all is well, then someone comes by and bumps the bottom one putting a dent in it and...
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