Week 2 Day 2

Workshop by

Highlights of Previous Lecture

• Sketching Tools

– Line, Circle, Rectangle, Arcs, Fillet

• Dimensions

– Definition, Weak & Strong Dimensions

• Constraints

– Definition, Types of Constraints

Today’s Lecture

• Mirror Tool

• Relations

– Definition

– Types of Relations

– How to Use

• Basics of Part Modeling

– Part Modeling in Pro/ENGINEER

• Practicing Part Modeling

Mirror Tool

• Draw a circle of 4 unit diameter

• Select the center line tool from the line tool

• Draw either a vertical or horizontal line

• A 2-point line will be drawn of infinite length

• Select the circle and the mirror tool

• Now select the center line

– It will be prompted to do so in the message pane

• The circle will be mirrored

Relations

• Definition

– user-defined equations written between symbolic dimensions and parameters

– allowing users to control the effects of modifications

How to Use Relations

• Draw a kite shape

• We will now apply relations to its sides

• Access “Relations” through “Tools > Relations”

Relations Dialog Box

PART MODELING

Part Modeling

• Also called Solid Modeling

• Click “New” and then select “Part”

Setting up Drawing Units

• Edit > Setup

• Menu Manager > Units

Units Manager

The Drawing Planes

• These 3 drawing planes are called DATUM planes

– Datum means a point, line, or surface used as a reference

• Datum planes are used as sketching surfaces

• Select the FRONT datum plane

– It will turn red

– Then click the Extrude button located at the bottom left or above right of the screen

– Click the Define button

• Sketch a rectangle of 40x25 cm

• Click the small blue color check present at the bottom right of the screen.

• Type the extrusion depth you want

• Click the green check button to extrude

• Your drawing now becomes a solid model

Viewing your Drawing

• The Saved view list option, present in the Views toolbar gives you different options to look at your drawing from various perspectives

Adding a Hole

• Select the FRONT view

• Select Extrude 1 in the Model Tree located on the left of the screen

• Click the Extrude tool

• Placement > Define > Sketch

• Draw a circle at the center of the rectangle of 8cm diameter

• Next click the blue check button

• Your drawing will now look similar to this

• Click the Remove Material button

• Click the Standard Orientation view option

Extrusion direction

Extrusion depth

• Click the Extrude Direction button to change the direction of Extrusion

• Click the GREEN check button

Viewing the Image

Taken from Pro/Engineer Wildfire Instructor by David S. Kelley, pg. # 27

The Hole Tool

• Another way to make a hole

• Select the extruded surface as shown

• Hole Tool > Placement > Define > Sketch

Simple Hole

Standard Hole

Hole Diameter

Hole Depth

Hole diameter

Hole depth

Edge Reference Handle

• Select the Through All option

• Drag the green handles to their edges

– Type “2.00” in place of 2.47 & “4.00” in place of

3.82

• Click the green check button

• Use the MMB to rotate the solid model

Getting Ready to Model the Robot

• What we need

– Base

– Side Walls

– Shafts

– Wheels

– Top

– Motors

– Batteries