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Recent content by ghostdigital

  1. ghostdigital

    Already Proven Technology Meets Milestone

    Why do you think your design and seals used are identical? Justify your claim that there is a scam..
  2. ghostdigital

    Hole size with tolerance for Shaft

    Vague, but you should first determine what the fit requirements are... Start here, drill down https://www.engineersedge.com/tolerance_chart.htm
  3. ghostdigital

    Perpendicularity to 3 datums

    The specification does not appear to incorrect but awkward and uncommon.. Datum "C" is not required as an orientation of Datum's A and B is not a required refinement.
  4. ghostdigital

    Weld Size Calculation for Plate Welded Perpendicularly to RHS Beam

    Simple calculations and equations here https://www.engineersedge.com/weld_design_menu.shtml
  5. ghostdigital

    Need help identifying strange fitting

    What is the fluid in the pipe? I'm wondering if this is a compatibility centric application.
  6. ghostdigital

    NPT thread strength - Stress Distribution / Tensile Area

    These guys got a Pipe Thread Installation Torque and Hoop Stress calculator https://www.engineersedge.com/hardware/pipe_thread_installation_13424.htm
  7. ghostdigital

    Crazy cantilevered steel deck

    State of maintenance will matter years from now..
  8. ghostdigital

    How Can You Prevent Laser Cutting Machine Head Collisions?

    I elevate my laser head high and run the program with laser power off and observe the travel. This is a good idea on the first setup and cut for anything you CNC program.
  9. ghostdigital

    composite tolerance at lmc : is it nonsense?

    By default tolerances of location applied to threaded feature apply the axis as derived from the pitch circle (diameter). Since the variation of pitch diameter of a 8-32 unc thread is about 0.0015 (verify) the "Bonus" tolerance at LMC is minimal Assuming that there is actual logic in this...
  10. ghostdigital

    Perpendicularity callout with curved datum

    Yes, on second look you're right there still needs to be a orientation control on Datum A.
  11. ghostdigital

    Perpendicularity callout with curved datum

    "IF" datum A was a datum target line, with a specified location it would work. Or, if an additional datum (B?) was specified in the FCF which would orient Datum A - that would work. As is - the orientation relative to Datum A is unspecified.
  12. ghostdigital

    Dimension representation.....

    I suppose one could do that however when a dimension is not to scale it should be underlined..
  13. ghostdigital

    Help Identifying Callouts in an Old Drawing

    Those are Datum lines, targets and areas. The balls indicate the type of simulators for gaging and location
  14. ghostdigital

    Unilateral tolerances-why?

    "Can someone explain to me why you would ever desire to basic a print at the MMC with one sided tolerance?" Old school.. Before CNC's we manufactured stuff with manually operated machines and the strategy for the machine operator (machinist) was to remove just enough material to achieve MMC...
  15. ghostdigital

    Why flatness tolerance associated with a FOS must be less than the size tolerance?

    This is correct but only for selected form tolerances applied to the size dimension or FOS. Same applies for straightness specified to the FOS but not the surface exclusively. Excludes cylindricity... When a flatness is specified to a surface it is a refinement of the surface, thus the limits...
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