Tutorial: Flange with Equations Chapter 4

Feature 1 – Extruded Circle INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 2 – Construction Plane INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 3 – Extruded Boss (Drafted) INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 4 – Extruded Cut (Drafted) INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 5 - Fillets INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 6 - Fillet Different radius than previous fillets, so added as a separate step INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 7 - Rib INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 7 (cont.) To create this sketch, the silhouettes of the fillets as they intersect the sketch plane are converted into arcs in the sketch INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 7 (cont.) A line is added that is tangent to both arcs INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 7 (cont.) Excess portions of the arcs are trimmed away INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 7 (cont.) Lines are added to close the sketch INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 8 – Revolved Cut Because the top of the rib is flat (created by extrusion), it matches the contour of the fillet only at the mid-plane of the rib The mismatch between the two features needs to be removed INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 8 (cont.) Rather than creating a new sketch, the sketch used to create the rib can be re-used and edited INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 8 (cont.) The revolved cut allows the rib and fillet to intersect smoothly INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 8 (cont.) Note that the shared sketch is indicated by the hand under the sketch icon INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 9 - Draft Since the direction of the draft is not the same as the extrusion direction of the rib, the draft is added as a separate feature INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Feature 10 – Circular Pattern of Ribs Note that the draft is patterned as well INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Features 11, 12 – Extruded Cut (Hole) and Circular Pattern INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Renaming Features Renaming features will be helpful before adding equations INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Equation 1 Number of holes = number of ribs Number of holes is the independent parameter Number of ribs is the dependent parameter INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Equation 1 (cont.) Changing number of ribs causes number of holes to change Second equation is needed to place holes between ribs INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Equation 2 Degrees between ribs = 360/(# Ribs) Angular position of first hole is one-half of angle between ribs = ½*(360/(# Ribs)) = 180/(# Ribs) INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009

Equation 2 (cont.) Changing number of ribs now changes number of holes and places holes between ribs INTRODUCTION TO SOLID MODELING USING SOLIDWORKS 2009