The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From A. Reschke Design Solutions:
PositionalT is a fully validated Geometric Dimension and Tolerance calculator used to calculate the available positional tolerance between a grouping of holes and pins, the default setting will evenly divide the available tolerance between the Holes and Pins, the user can override this distribution to meet specific design needs. The application calculates the diameters and tolerances at MMC, LMC and Nominal. One of the key features of PositionalT is the calculated Virtual Conditions, a RED color indicates a potential interference fit at the tolerance extreme condition. When you are deep into a mating fit study and need to know standard drill sizes, select the Drill Index icon to browse the full spectrum of drill sizes from 1/64 up to 1 inch.Feature list:- 19 calculations with a single click- MMC, LMC and Nominal tolerances- Resultant and Virtual Conditions- Over-ride distribution of tolerance- Inch or Metric units- Drill Index- Screen capture for collaborative work- Positional analysis in the field The key numbers related to True Position is the Virtual Condition, the clearance between the virtual hole and pin is vital. Plastics can be pushed to a line to line fit, but metal parts may not be easily assembled in this condition, additioinally components that are assembled using automated methods may not assemble with a line to line fit. The virtual calculations are one of the key features of the PositionalT app.
User interface enhancements to automatically update calculations; a full drill index has been incorporated with-in the application and the GD&T tolerance block graphics have been updated to match industry standards.