Unit 4: Tolerance and GD&T Basics

Tolerancing Calculations

Reference:  Tolerance Notes  
Tolerance Demo: Pin/Hole Problems 1 and 2
Tolerance Demo Answer Key: Pin/Hole Problems 1 and 2
Assignment: Tolerance Calculation Packet 

Tolerancing Assignment Assembly: Landing Gear Arm

    Assignment: Landing Gear Arm
    Reference Video: Landing Gear Arm Design
    NOTE: Video overviews Design,  Assembly in Context and Layout
    NOTE: Tolerance Display (tol_display) in layout: If tol_display is turned off in layout Goto the Following: File > Prepare > Detail
                Options > Change > Type in tol_display > Turn the option to Yes > Add/Change > Apply > Ok
   
    Reference Tutorial: Modify/Add Features to Individual Parts in an Assembly File
            NOTE: Tutorial Shows how to Cut Angle on Base Piece that is flush with Top Arm

Layout: ALL on ONE sheet
          Views Include: Sectioned Assembled Orthographic, Assembled Isometric, Individual part views, BOM Chart and any other views designer deems necessary.
          Label each View (Including Assembly Views)
          Part Top Arm: Include
            1. Top Datum as Annotated Datum: Select Top Datum in Layout > Right Mouse Button: Properties > Annotated Display Option (Option: Looks like A in a Square Box) > Rename (0, REF. or BASE, ETC.)
            2. Draw in Centerpoints for the two center arcs that are not concentric > Set Radius Dimensions > Flip Arrowheads so the dimension leader line extends to the centerpoint
                      Reference Tutorial: Centerline Using Sketch Tool
                              Used when a Feature on the Solid Model is Designed as an Arc (Geometry less than 360 Degrees) 

Assembly Layout References

Reference Tutorial:  Add/Delete Linked Files to Creo Drawing, Add Sheets, Change Format for each Sheet

Reference Tutorial: Rotating Views Manually

Sectioning Layout
            Reference Tutorial: Sectioning View: Full Section
            Reference Video: Sectioning View: Full Section

Creo Bill of Material Tables
Written Tutorial: Table Creation
Video Reference: Table Creation

BOM Chart: Part List Cell Box Settings

Text Height:              Varies (Titles should be the tallest with Part Info being slightly smaller than Titles (I.E Titles .15 and Part Info .1)

Cell Height                0.25"

Lengths

BOX 1: PART #          0.75

BOX 2: PART NAME    1.75

BOX 3: QTY.              0.75

BOX 4: SHEET           0.75

Grid Lines: Any Drawn Grid Lines to Seperate Views/Drawings will be .03 Thick (Same as Border Lines). Use Reference Selection Tool to select an edge from the part to snap parallal to perpendiculiar to; similiar to drawing in centerlines.