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  1. flycast

    Projectile acceleration question

    You are correct - catastrophic failure of the container. Basically a piece at rest acted instantaneously with 300 lbs will strike another object with 300 lbs of force (ignoring air resistance) regardless of mass???
  2. flycast

    Projectile acceleration question

    Also posted here. I am trying to determine what the acceleration of a projectile would be if failure happened on an aluminum container that contains 300 PSI compressed air. I'll have to make some assumptions so I would assume that a small piece of 20 grams broke off and the gas inside the...
  3. flycast

    Need low pressure high flow coltron

    I need good control over air pressure with high flow. I have a 1" pipe with 120 PSI incoming. I need to control the pressure to 0-5 PSI with "good" flow. I bought a regulator (0-12 PSI) from McMaster.com and that seems to be good. I bought a gauge (0-5PSI) and that is good. My issue is that I...
  4. flycast

    Primer on revisions and numbering

    Really dumb question but... Can someone please point me to a good tutorial on managing project files. I am experimenting with a vault program and it has me thinking about some very basic questions about how to set up a system. On any one project typically we are creating an assembly that...
  5. flycast

    Air through a cylinder flow problem

    Thanks for the advice, it was helpful. Here is a curiosity question...Why is the speed of sound so significant? Obviously, it's the speed of sound but why would it limit the air flow in this case?
  6. flycast

    Air through a cylinder flow problem

    I am a non engineer and need some help. I have a common problem that I face on a regular basis. I thermoform and need to pull air out of pockets that trap air in tools. The problem is how many holes of what diameter do I need to evacuate a certain size pocket? The holes are typically 0.016"...
  7. flycast

    Determining weather an object is within another object using a VBA scr

    I wish to determine if a circle, arc or line is contained within a polyline using VBA procedure. I have investigated the intersect command but this only works for 3D objects, my objects will be 2d objects. Any ideas? Thanks, Eric

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