Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Interactive Audio Lesson
Listen to a student-teacher conversation explaining the topic in a relatable way.
Understanding the TTR Command
Unlock Audio Lesson
Today, we will delve into the Tangent Tangent Radius, or TTR command, which allows us to draw circles that are tangent to two existing objects. Can anyone tell me why tangents might be important in our drawings?
They're important for ensuring that designs fit together smoothly!
Exactly! Tangents help maintain smooth transitions in designs. Now, let’s break down the steps to use the TTR command. First, we need to know how to activate it.
Is it similar to drawing a regular circle?
It’s similar, but we include specifying existing tangential objects and a radius. Let me show you how.
Executing the TTR Command
Unlock Audio Lesson
To execute the TTR command, we first type `CIRCLE` or just `C`. Then we select the TTR option. Who remembers what we need to do next?
We have to pick two tangents!
Right! And once we've selected those, we need to enter our desired radius. This ensures the circle fits perfectly. Can someone explain why the radius is significant?
It determines how large the circle will be, which affects how our design fits together.
Very well said! An inappropriate radius could lead to design failures.
Applications of the TTR Command
Unlock Audio Lesson
Now, let's go over some practical applications of the TTR command. Can anyone think of a situation where we might need it?
In architectural design, like creating rounded corners or when connecting walls.
Precisely! Architects often use the TTR command for blending circular features with straight lines or other curves. What about in engineering?
Maybe for creating smooth transitions in roads and pathways?
Absolutely! Smooth transitions are critical for both safety and aesthetic appeal in engineering designs.
Introduction & Overview
Read a summary of the section's main ideas. Choose from Basic, Medium, or Detailed.
Quick Overview
Standard
The Tangent Tangent Radius command in CAD is essential for creating circles that touch existing geometries at two points. This section details the steps and inputs required to utilize this tool effectively, highlighting its practical applications in architectural and engineering drawing.
Detailed
Tangent Tangent Radius (TTR)
The Tangent Tangent Radius (TTR) command is an integral feature within CAD software, specifically designed to draw a circle that is tangent to two existing objects, with the radius defined by the user. This command is particularly useful in creating precision drawings in architecture and civil engineering, where exact geometrical relationships are paramount.
Command Execution
To execute the TTR command, follow these steps:
1. Initiate the Circle Command: Type CIRCLE or C.
2. Select TTR Option: Input 3p/2p/TTR to choose the TTR option.
3. Specify Tangents: Click on two existing objects that will serve as the tangential points for the circle.
4. Enter the Radius: Finally, input the desired radius for the circle.
This command ensures that the created circle seamlessly integrates into the existing design, enhancing both the aesthetic and functional qualities of the drawing.
Youtube Videos
Audio Book
Dive deep into the subject with an immersive audiobook experience.
Introduction to Tangent Tangent Radius
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
TANGENT TANGENT RADIUS: Draw a circle tangent to existing object with specified radius. COMMAND: CIRCLE or C.
Detailed Explanation
The Tangent Tangent Radius (TTR) command is a way to draw a circle that is tangent to two existing objects or lines. This means that the circle will touch these objects at exactly one point without crossing them. The command for this function is often accessed within CAD software by using the 'CIRCLE' command followed by the option for TTR. It is particularly useful in design contexts where precision and specific touchpoint relationships are necessary.
Examples & Analogies
Imagine you are designing a roundabout in a road plan. You have two roads that meet at an angle, and you need to create a circular road that touches both of them exactly where they meet. The TTR command helps you achieve that perfect circle that connects both roads seamlessly.
Choosing the Points for Tangents
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
3p/2p/TTR/
Detailed Explanation
To use the TTR command effectively, you need to specify the two existing objects that the circle will be tangent to. This is done by first picking the first object and then the second object. The software will use these selections to determine the position of the circle.
Examples & Analogies
Think of the circle as a tire that needs to fit perfectly against the sides of two walls in a garage. The TTR command allows you to determine the precise placement of the tire (the circle) relative to the walls (the tangential objects) so that it touches them without overlapping.
Defining the Circle's Radius
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
Radius; enter radius of circle.
Detailed Explanation
Once the two tangent points have been specified, the next step is to enter the radius for the circle. The radius defines how large or small the circle will be, impacting how it relates to the tangent points you've selected. Inputting the correct radius is crucial as it determines whether the circle fits well between the tangent objects.
Examples & Analogies
Imagine you're trying to fit a hula-hoop (the circle) in between two trees (the tangent objects). The radius is like determining how wide your hula-hoop can be without hitting the trees. If the radius is too large, it won't fit; if it's too small, it won't span the distance you want.
Definitions & Key Concepts
Learn essential terms and foundational ideas that form the basis of the topic.
Key Concepts
-
Tangent Tangent Radius (TTR): A command in CAD that draws a circle tangent to two existing objects with a user-defined radius.
-
Execution Steps: Involves invoking the circle command, selecting TTR, and specifying tangential objects and radius.
Examples & Real-Life Applications
See how the concepts apply in real-world scenarios to understand their practical implications.
Examples
-
Creating a circle in a building plan where two walls meet at a corner.
-
Designing a roundabout in a road engineering project using the TTR command.
Memory Aids
Use mnemonics, acronyms, or visual cues to help remember key information more easily.
🎵 Rhymes Time
-
To draw circles nice and round, TTR keeps design sound.
📖 Fascinating Stories
-
Imagine an architect named Alice who draws beautiful parks with pathways. She loves using TTR; it helps her create perfect curves that connect different sections seamlessly.
🧠 Other Memory Gems
-
Remember TTR as 'Tangent toTwo Roads' to help visualize its practical use.
🎯 Super Acronyms
Use TTR
- Tangent
- Two
- Radius when memorizing the command sequence.
Flash Cards
Review key concepts with flashcards.
Glossary of Terms
Review the Definitions for terms.
-
Term: Tangential
Definition:
Touching a curve or surface in a single point, indicating no intersection.
-
Term: Radius
Definition:
The distance from the center of a circle to any point on its circumference.
-
Term: Circle Command
Definition:
A command in CAD to create circular shapes.