Week 9 - Attachment Feature Creation - Challenge 1

Obejtive:

To Create Ribs on Coin Holder Design.

Procedure:

Creation of Rib-1 & Rib-2:

• To create Rib-1 ,Extract the base surface of the Coin Holder.
• Create a Point on the surface with distance 0mm.
• Create a position sketch on XY Plane, with reference as point.
• Draw a Line on the sketch give necessary dimensions to make it Iso-constrained and exist the sketch.
• Use Extrude command on the line, along the tooling direction by giving lengths to extend. Rib Height= 5*t = 5*2.5mm=12.5mm
• Insert a Body as RIB-1
• Make the extruded line to thicken by selecting on the Part Desgin workbench and on Thick surface command. Rib Thickness=0.4*t , t=2.5mm, Rib Thickness=0.4*2.5mm= 1mm.
• Draft the edges by selection of surfaces to be drafted + Neutal element+Pulling direction(Tooling Axis). Rib Draft=0.5deg.
• Rib Thickness at Tip=0.86mm
• Define the Body(Coin Holder) and select the Body(Rib-1) and assemble the Rib-1 to the parent Coin Holder.
• Select Edge fillet command and give radius on ribs. Rib Radius= 0.25mm
• Draw a Plane on the XY PLANE with point as reference.
• Select the Intersect command, fist element= Coin Holder, second element=Plane. Intersect appears for the coin holder and the rib.
• To create Rib root thickness = Y/X>3.
• Y= Rib Height/Spacing distance>3.
• Spacing Distance=12.5/3 = 4.16mm (i.e ~5mm)
• Draw a Circle with Tritangent condition by selecting 3 elements to form a Rib wall thickness..
• Rib Root Thickness= 2.68mm

Screenshot of Sketch.1 for Rib-1 is Iso-constrained:

Screenshot of Tree Struture of Rib-1:

Screenshot of Rib Root Thickness Creation For Rib-1:

Screenshot of Rib-1 Assembled with Coin Holder:

Screenshot of Sketch.1 for Rib-2 is Iso-constrained:

Screenshot of Rib-2 Assembled with Coin Holder:

Screenshot of Rib Root Thickness Creation For Rib-2: