Skip to main content

Gear-Like Drawing with Dimensions Using AutoCAD – Step-by-Step

Also Read

Gear model in AutoCAD

This blog explains step-by-step how to create this gear-like drawing in AutoCAD, including arcs, radii, angles, and detailed dimensions.

Step-by-Step Guide to Create the Drawing in AutoCAD

  1. Set Up the Drawing Environment

    • Open AutoCAD and set your workspace to Drafting & Annotation.
    • Use the Units command to set the units to Decimal with precision of 4 decimal places.

  2. Draw the Basic Circle (Outer Profile)

    • Use the Circle command:
      • Type C and press Enter.
      • Specify the center point as (0,0) and the radius as 2.125.

  3. Create the Tooth Shape (Outer Gear Edges)

    • Use the Polar Array method for repeating teeth:
      • Draw a single tooth first:
        • Use the Line command to draw a line from the circle edge at an angle of 10°.
        • Repeat for the opposite side at 10° using Mirror or by snapping to the centerline.
      • Use the Trim tool to clean excess lines.
    • Use Polar Array to duplicate the teeth:
      • Type ARRAYPOLAR, select the tooth, and set the center as (0,0).
      • Define the number of teeth based on the required spacing.

  4. Draw the Spokes

    • Create four spokes as shown using the Arc and Line tools:
      • Start by drawing a centerline (horizontal and vertical lines through the origin).
      • Use the Arc tool:
        • Start the arc at R1.7500 radius.
        • Adjust the span angle to visually match the drawing.
      • Mirror the arcs along centerlines for symmetry.

  5. Add the Small Circles and Holes

    • Draw the small inner circles:
      • Use the Circle command:
        • Center: (0,0) and radius: 0.2500 and 0.1300.
    • To add a hole or center circle:
      • Specify the diameter using Ø0.4000 (convert to radius).

  6. Add Angular and Radial Dimensions

    • Use the Angular dimension tool to add:
      • 10° and 20° angles for teeth and spokes.
    • Use the Radius tool to add:
      • R2.1250, R2.0000, R1.7500, and R0.1300.
    • Use the Diameter tool for Ø0.4000.

  7. Adjust Line Weights and Colors

    • Use the Layer properties to assign different colors and line weights:
      • Red: Main outline.
      • Green: Centerlines and guides.
      • Blue: Dimensions.

  8. Finalize the Drawing

    • Add center marks using the Centerline tool.
    • Ensure all dimensions are clearly visible.
    • Save and export the drawing as required.

Need Help with Custom AutoCAD Drawings?

I provide professional CAD services, including gear designs, 2D to 3D conversions, and detailed mechanical drawings. Let’s bring your designs to life with precision and speed!

Portfolio Links:

Faster turnaround: First draft delivered in 1 hour, and after review and approval, the full task will proceed.

Tags:

#autocad #mechanicaldrawing #gearprofile #autocadstepbystep #mechanicaldesign #2dmodelling #technicaldrawing #autocadblog #engineeringdesign #cadservices #caddesign #autocadwork #geardesign #2dto3d #mechanicalengineering #solidworksdesign #cadmechanism #cadsupport #designexpert #autocadtutorial #engineeringdrafting



Comments

Post a Comment

Recent posts

Isometric drawings for practice in AutoCAD

What is Isometric Drawing? Isometric drawing is a method of visually representing three-dimensional objects in two dimensions. It allows for a clear and comprehensive depiction of complex structures by keeping the scale consistent and eliminating distortion. Isometric drawings use a 30-degree angle from the horizontal in all three axes (X, Y, and Z), creating a pseudo-3D effect where the height, width, and depth are equally foreshortened. Creating Isometric Drawings in AutoCAD AutoCAD provides tools and settings that make creating isometric drawings straightforward. Here’s a step-by-step guide: Step 1: Set Up Isometric Snap/Grid 1. Enable Isometric Snap/Grid:    - Type `SNAP` in the command line and press `Enter`.    - Type `Style` and press `Enter`.    - Choose `Isometric` and press `Enter`. 2. Switch Between Isoplanes:    - Type `F5` or `CTRL+E` to toggle between the top, right, and left isoplanes. Step 2: Draw Isometric Circles and Arcs 1. Isom...
Post a Comment
Complete post >>

Composite materials Viva Question and Answers

Q1- What is a composite? a. Recycled waste b. A chemical reaction c. The latest computer software d. A structural material consisting of two or more constituents.  Answer: A composite is a structural material which consists of combining two or more constituents Q2- Advanced composites are a. naturally found b. traditionally used in aerospace industries c. low performance composites Answer: Advanced composites are traditionally used in aerospace industries  Q3- Composites are easy to repair a. True b. False Answer:   Composites are generally difficult to repair  Q4- What fiber factors contribute to the mechanical performance of a composite? a. Length b. Orientation c. Shape d. All of the above Answer:   Length, orientation, and shape all contribute to the mechanical performance of a composite  Q5- PMC stands for: a. Polymer Metal Composition b. Polymer Matrix Composite c. Polyethylene Metal Composition Answer:   PMC stands for Polymer Matrix Composite...
Post a Comment
Complete post >>

MAKING OF A CONE FUNNEL

Ex. No :                                                                                   Date : MAKING OF A CONE FUNNEL Aim To make a funnel from the given sheet metal. Tools required • Steel rule • Mallet • Scriber • Divider • Protractor • Snips • Stakes • Ball peen hammer • Solder Procedure 1. The size of the given sheet is checked for its dimension using           steel rule. 2. The required development of surface is being made on the white       paper which is  overlapped on the sheet metal. 3. The marking is done on the sheet metal as per the development         being done on the  paper. 4. Now using straight snips, unwanted material are removed. 5. Now fold and bend the...
Post a Comment
Complete post >>

The Motion-Balance System used in Pneumatic Instruments

The motion - balance system is used in pneumatic instruments to produce a proportional output of 3 - 15 psi when a corresponding input signal is applied to the instrument. A typical motion-balance system in a pneumatic instrument is shown below: The above diagram shows a motion-balance system in which the input motion is applied to point P on the lever PQ. The opposite end (Q) of this lever is pivoted to a second lever QRS which in turn has point S pivoted in a lever positioned by movement of the feedback bellows. At the center (R) of the lever QS there is a stem on which one end of the lever RTU is supported while it is pivoted at point U and has a flapper nozzle sensor located at point T. A horizontal displacement which causes P to move to the left is transmitted via Q to R, and as a result the flapper at T moves off the nozzle so that the back pressure falls. This change is amplified by the pneumatic relay so that the pressure in the feedback bellows falls and the lever carrying t...
Post a Comment
Complete post >>

STRESS STRAIN CHARACTERISTICS OF MILD STEEL BAR BY UTM

Aim: To study the stress strain characteristics of mild steel by Universal Testing Machine Equipment: Universal testing machine meter rule, dividers and scale, Test specimen Theory: In tension test of ductile metals, the properties usually determined are yield strength, ultimate tensile strength, modulus of elasticity, percentage of elongation etc. For brittle materials only compressive strength is determined. The tension test is normally carried out in a Universal Testing Machine (UTM). The specimen can be in the form of a rod or a plate. The dimensions of standard specimen can be known from accepted specifications. The following properties can be determined from the stress strain curve of the material: Proportional limit: is that point on the stress strain curve at which the curve deviates from linearity, i.e. from the relation Stress = Young's modulus x strain $\sigma = E \varepsilon$ Elastic limit: is the point on the stress strain curve above which plastic de...
6 comments
Complete post >>

SINGLE ‘V’ BUTT JOINT

Experiment No.:                                                                                      Date: SINGLE ‘V’ BUTT JOINT Aim: To prepare a single ‘V’ Butt Joint as per dimensions given in the sketch. Material Required: Mild Steel plates: 80mm X 40mm X 6mm = 2 Nos Mild Steel electrode ¢ 3.15 mm Equipment required: A.C. Transformer with all welding accessories like Electrode holder, cables. Tool Required: Steel rule 300mm  Scriber 150mm Flat file 300mm Try square 200mm Flat Tong 450mm  Chipping hammer 200mm Ball peen hammer 750mm  Wire brush Welding screen Sequence of Operations: 1. Marking  2. Filing  3. Welding  4. Finishing Procedure: Take two Mild steel plates of size 80mm X 40mm X 6mm. Fix the wor...
2 comments
Complete post >>

Fluid mechanics VIVA QUESTIONS and ANSWERS

1. Define density? Ans: It is defined as the ratio of mass per unit volume of the fluid. 2. Define viscosity? Ans: It is defined as the property of fluid which offers resistance to the movement of fluid over another adjacent layer of the fluid. 3. Differentiate between real fluids and ideal fluids? Ans: A fluid, which is in-compressible and is having no viscosity, is known as ideal fluid while the fluid, which possesses viscosity, is known as real fluid. 4. What is a venturimeter? Ans: It is a device which is used for measuring the rate of flow of fluid flowing through pipe. 5. What is a notch? Ans: A notch is a device used for measuring the rate of flow of a fluid through a small channel or a tank. 6. Define buoyancy? Ans: When a body is immersed in a fluid, an upward force is exerted by the fluid on the body. This upward force is equal to the weight of the fluid displaced by the body. 7. Define meta-centre? Ans: It is defined as the point about which a body...
14 comments
Complete post >>

FACING, PLAIN TURNING AND STEP TURNING

Ex. No :                                                                                                          Date : FACING, PLAIN TURNING AND STEP TURNING Aim                       To perform turning, facing and chamfering on a cylindrical work piece. Material used                       Mild steel cylindrical rod. Tools required Lathe Three-jaw chuck Chuck key Vernier caliper Single-point cutting tool Procedure First loosen the jaw in the chuck key to position the work piece, and then tighten the  jaws. Fix the cutting tool in the toolpost. Switch on the lath...
2 comments
Complete post >>

step by step procedure to draw hook 2D drawing using AutoCAD

1. Create one vertical line and two horizontal lines like shown below according to dimensions. 2.Draw the circles at intersecting points like shown below with given dimensions. 3. Draw TTR (tangent tangent Radius) circles like shown below with given radius values. 4. Trim extra elements using " TR " command the final image be shown like below. 5. Now draw another reference lines and circles using TTR(tangent tangent Radius) circle according to given dimensions. 6. Now Trim the extra elements by using "TR" command. 7. Now dimension the elements using DIM command.
7 comments
Complete post >>

Sheet metal Funnel making

Making a Funnel using metallic sheet Making a Funnel using metallic sheet Aim:- To make a funnel from a given (GI)metallic sheet. Tools Required:- MALLET, SNIP, STAKE, STEEL RULE, BALL PEEN HAMMER, STRAIGHT EDGE, RIVETS, SCRIBER Procedure:  The size of the given sheet metal is checked for its dimensions using a steel rule The required development of surface is being made on the white paper which is overlapped on the sheet metal. The marking is done on the sheet metal as per the development being done on the paper. Now using straight snips, unwanted materials are removed. Now fold and bend the workpiece to make the funnel shape and joint is made on the workpieces. Then using a groover, a locked grooved joint is made for about 5mm. Also, hemming is done in the bottom of the funnel. In between top face and bottom face, a butt joint is made using a solder. Finally, trimming and finishing operations are carried out. Safety Precautions:- Each cut you make exposes s...
Post a Comment
Complete post >>

Search This Blog