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DIY 3D Printed Robot at Home

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  • by 3D Printing Pin team
  • in 3D Printing Video
  • — 21 Jan, 2015

Unlike the traditional industrial process which requires a long production line and lengthy sequence of steps, creating a 3D printed robot is much easier and can be done at home if you have a 3D printer in hand. Similar to many fields, the 3D printing industry enabled many designers and engineers to turn their ideas into real workable models with a significant reduction in costs.

While there are different 3D printing technologies, 3D printers that depend on fused deposition modeling technology with a plastic-based filament can be affordable at lower costs.

The designer requires 3D printing software which lets he or she create a 3D model and send this to the 3D printer in the STL or OBJ format. The desktop 3D printer starts to build the model from thin layers of the loaded filament. This simple process helped many designers to give form to his or her conceptualization by simply printing a prototype. Examples of these ideas range from 3D printed prosthetics, shoes, toys and even car designs.

3d printed robot

The 3D printed arm parts

One of the latest interesting projects is 3D printed robot created by Andreas Hölldorfer. In this project, Andreas created a robotic arm that can be built at home and works by using motors to achieve tasks such as holding things and other specific actions. The project is useful especially for people with disabilities to help them do home activities by simple pressing couple of buttons.

The 3D printed robot is created using plastic 3d printed materials via a desktop printer and motors that achieve the arm parts movement. In his blog, Andreas Hölldorfer provides all the resources and videos required to create this 3D printed arm at home starting from the STL files that can be downloaded from the following links:

  •  http://www.thingiverse.com/thing:591230
  • http://www.thingiverse.com/thing:601036
  • http://www.thingiverse.com/thing:623481
3D printed robot

The assembled 3D printed arm

The 3D printed parts are divided into two versions. The blue parts are planned to connect with a step motors. Unlike normal DC-motors, these motors divide the full rotation into equal steps, which allows the arm part to stop on a specific step without the need to attach a feedback sensor. The second version is the organ parts that are connected to DC-motors. The video below shows a complete test for the 3D printed robot working using different attached motors:

In the addition to the robotic arm, there is a gripper that is created separately. The gripper is created from three fingers. The gripper can work using separate motors to grab objects such as a Cola bottle. The plastic elements are 3D printed using ABS filaments and it utilized around 1.2 KG of the 3D printing material. The video below shows how the gripper works separately from robotic arm:

In addition to the above videos, you can view the work process in parts by visiting Andreas’ YouTube page.

Andreas’ project provides an example of using the 3D printing technology in order to build DIY products that were difficult to create without resorting to traditional industrial production lines and processes. His videos provide a workflow that can be used to create other products using the same technology.

Tags: 3d printed robot

— 3D Printing Pin team

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