Page 104 - Robotics and AI class 10
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Former Google engineer Kai Backman and Mikko Mononen founded Tinkercad intending to make 3D modeling,
especially the design of physical items, accessible to the general public and allowing users to publish their
designs under a Creative Commons License.
Tinkercad is designed to be user-friendly, particularly for beginners or those without prior experience in CAD. It
provides a simple and intuitive interface that enables users to create 3D models by dragging and dropping pre-
designed shapes, combining them, resising, and manipulating them in various ways. It also offers tools for
adding colors, textures, and other details to the models.
One of the key features of Tinkercad is its focus on educational purposes. It is widely used in schools and
educational institutions to teach students about design, engineering, and 3D modelling. This software provides
a range of educational resources, tutorials, and projects that help students learn and practice their design skills.
Tinkercad supports exporting the created models in various file 4th axis
formats such as STL, OBJ, GLTF, USDZ and SVG. The STL format
is the most common file format for 3D printing. The format that 6th axis
you choose to export your design will depend on the purpose
of your design. If the users are planning to 3D print their design, 5th axis 3rd axis
then they should export it in the STL format. If the users want
to share their design with others, then they can export it in the
OBJ, GLTF, or USDZ format. 2nd axis
Revolute and Prismatic Joint
Revolute and prismatic joints are two types of mechanical joints 1st axis
commonly used in robotic systems, industrial machinery, and
other mechanical structures to enable relative motion between
two parts. They are fundamental components in constructing robots and machines with specific degrees of
freedom for movement.
Revolute Joint
A revolute joint allows rotational motion about a single axis, like a hinge or a
door. It restricts the relative motion between two connected parts to rotation
only, and the axis of rotation remains fixed. This type of joint is often used when
you need to create rotational movement in a robotic arm or a mechanical system.
Example: Consider a robotic arm used in manufacturing processes. Each segment
Revolute 1 DOF
of the robotic arm is connected to the next segment using revolute joints. This
allows the arm to move in a series of rotational motions at each joint, similar to how a human arm moves at the
elbow, shoulder, and wrist.
Prismatic Joint
A prismatic joint allows translational motion along a single axis, much like the
motion of a sliding drawer. It restricts relative motion between two connected
parts to linear sliding or translation along a specific direction.
Example: Think of a simple sliding drawer found in a desk or cabinet. The
drawer slides in and out along a fixed direction. This sliding mechanism is Prismatic 1 DOF
achieved by using a prismatic joint, where one part of the drawer is connected
to the fixed structure via the prismatic joint, allowing linear motion in a specific direction.
102 Touchpad Robotics & Artificial Intelligence-X

