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    Department of Mechanical Engineering: Machine Design & CAD-II Lab (MEEN-3238)

    Uploaded by

    Sarmad Hafeez
    This lab report describes designing a spur gear with involute teeth profile in SolidWorks. The report outlines the 8 steps to design the gear using only 4 input parameters: number of teeth, module, pressure angle, and face width. Key steps include drawing circles to define the pitch, addendum, and dedendum, drawing the involute tooth profile using construction lines and the pressure angle, mirroring the profile, and extruding the base circle and tooth profiles to create the final 3D gear model. The objective was to practice 3D drawing of a gear with an involute teeth profile using the standard construction method.

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    Department of Mechanical Engineering: Machine Design & CAD-II Lab (MEEN-3238)

    Uploaded by

    Sarmad Hafeez
    50 views11 pages
    This lab report describes designing a spur gear with involute teeth profile in SolidWorks. The report outlines the 8 steps to design the gear using only 4 input parameters: number of teeth, module, pressure angle, and face width. Key steps include drawing circles to define the pitch, addendum, and dedendum, drawing the involute tooth profile using construction lines and the pressure angle, mirroring the profile, and extruding the base circle and tooth profiles to create the final 3D gear model. The objective was to practice 3D drawing of a gear with an involute teeth profile using the standard construction method.

    Original Description:

    CAD lab 4

    Original Title

    LAB 4 CAD

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    This lab report describes designing a spur gear with involute teeth profile in SolidWorks. The report outlines the 8 steps to design the gear using only 4 input parameters: number of teeth, module, pressure angle, and face width. Key steps include drawing circles to define the pitch, addendum, and dedendum, drawing the involute tooth profile using construction lines and the pressure angle, mirroring the profile, and extruding the base circle and tooth profiles to create the final 3D gear model. The objective was to practice 3D drawing of a gear with an involute teeth profile using the standard construction method.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    50 views11 pages

    Department of Mechanical Engineering: Machine Design & CAD-II Lab (MEEN-3238)

    Uploaded by

    Sarmad Hafeez
    This lab report describes designing a spur gear with involute teeth profile in SolidWorks. The report outlines the 8 steps to design the gear using only 4 input parameters: number of teeth, module, pressure angle, and face width. Key steps include drawing circles to define the pitch, addendum, and dedendum, drawing the involute tooth profile using construction lines and the pressure angle, mirroring the profile, and extruding the base circle and tooth profiles to create the final 3D gear model. The objective was to practice 3D drawing of a gear with an involute teeth profile using the standard construction method.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 11

    Department of Mechanical Engineering

    Machine Design & CAD-II Lab (MEEN-3238)

    Lab Report 4

    Submitted To Engr. Adnan Rasheed

    Submitted By Sarmad Hafeez

    Regd. No. ME171005

    Semester 6th
    Lab Session 4
    1. Objective:
    To practice 3D Drawing-02 which involves designing a spur gear with given parameters and
    an involute teeth profile.

    2. Involute Teeth Profile Spur Gear Design


    The involute profile is most common used in Gear designed and is generated from
    base circle. There are many ways to create gear and many times we ignore the
    standard construction method to save time. This should be avoided. So we have
    created this model which is equation driven.
    That means we only need 4 parameters to define the whole spur gear design.
    • Number of Teethes
    • Module
    • Pressure Angle (usually 20º)
    • Face Width
    3. Design calculation for Spur gear in SolidWorks

    Step 1
    Using calculation draw pitch circle, Addendum circle and dedundum circle as
    shown here;
    Step 2
    Now draw vertical line passing through pitch circle and also draw another at some angle. In
    smart dimensions click on Global variables and select the pressure angle (pa). As show below,

    Step 3
    So now draw a circle that is tangent to the line and annotate as Base circle as shown
    Step 4

    Now draw two lines and make them equal and from that point draw four construction lines and
    also make them equal as shown below

    Step 5
    Draw a central line and then draw a center point arc to make teeth profile and now draw another
    line with circular pitch angle (CPa). Also draw the backlash of 0.1mm by using offset command
    and then mirror the profile as shown below.
    Step 6
    Now draw the circle of radius 5mm with a keyhole as shown below;

    Step 7
    Now extrude the base circle and tooth profile. By using extrude boss and extrude cut commands
    we get following shapes.
    Step 8
    Again using previous sketch and by using circular sketch pattern command get the following
    sketch and extrude it.
    Final Drawing:

    Reg. No. Lab Performance (10) Lab Report (10) Viva Voce (10) Signature

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