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Building A Desktop Record And Play Robot Arm

Building A Desktop Record And Play Robot Arm

Photo of markus-bindhammer

Made by markus-bindhammer / 3D Printing / Robotics

About the project

Small Arduino desktop 3DOF record and play robot arm with an I2C FRAM chip (MB85RC256V) on which the robot movements can be stored.

Project info

Difficulty: Moderate

Platforms: Arduino

Estimated time: 5 days

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

12 g metal gear micro servo 12 g metal gear micro servo x 3
Custom PCB Custom PCB x 1
30 mm vacuum suction cup 30 mm vacuum suction cup x 1
12 V micro vacuum pump 12 V micro vacuum pump x 1
5 V selenoid valve 5 V selenoid valve x 1
Colored plastic marbles, 14 mm diameter Colored plastic marbles, 14 mm diameter x 5
Single-turn potentiometer, linear, 10k Single-turn potentiometer, linear, 10k x 3
Flanged ball bearing 3 x 10 x 4 mm Flanged ball bearing 3 x 10 x 4 mm x 2
Ball bearing 25 x 37 x 7 mm Ball bearing 25 x 37 x 7 mm x 1
3D printed parts 3D printed parts x 1
2.1 mm DC power jack, THT 2.1 mm DC power jack, THT x 1
Taiway 100 series switch, SPDT, THT Taiway 100 series switch, SPDT, THT x 1
Pin headers, 2.54 mm pitch Pin headers, 2.54 mm pitch x 1
Tactile push button with cap, 12 mm, THT Tactile push button with cap, 12 mm, THT x 1
Female headers, 2.54 mm pitch Female headers, 2.54 mm pitch x 1
Tactile push button, 6 mm, THT Tactile push button, 6 mm, THT x 2
JST connector, male, 2 pins, THT, 2.54 mm pitch JST connector, male, 2 pins, THT, 2.54 mm pitch x 3
JST connector, female, 2 pins, THT, 2.54 mm pitch JST connector, female, 2 pins, THT, 2.54 mm pitch x 3
3-wire servo cable, 3-wire servo cable, x 1
Silicone hose, 3 x 5 mm Silicone hose, 3 x 5 mm x 1
Plastic T-piece to match the silicone hose Plastic T-piece to match the silicone hose x 1
Servo extension cable 150mm Servo extension cable 150mm x 3
Silicone bumper, self-adhesive, 12.7 x 12.7 mm Silicone bumper, self-adhesive, 12.7 x 12.7 mm x 1
Arduino Nano V3 or clone Arduino Nano V3 or clone x 1
Kit to make your female header connectors Kit to make your female header connectors x 1
LT 1764 AEQ LT 1764 AEQ x 1
MC 7805 CDTG, DPAK MC 7805 CDTG, DPAK x 1
AO D4184A AO D4184A x 2
Tantalum cap, 10 μF, B 3528 Tantalum cap, 10 μF, B 3528 x 3
Tantalum cap, 100 μF, D 7343 Tantalum cap, 100 μF, D 7343 x 1
Ceramic cap, 1μF, 0805 Ceramic cap, 1μF, 0805 x 2
10 k resistor, 0805 10 k resistor, 0805 x 7
3.9 k resistor, 0805 3.9 k resistor, 0805 x 1
15 k resistor, 0805 15 k resistor, 0805 x 1
220 R resistor, 0805 220 R resistor, 0805 x 1
LED, green, 0805 LED, green, 0805 x 2
MB85RC256V, SOIC 8 MB85RC256V, SOIC 8 x 1
Stainless steel screws M2, M2.5, M3 of various lengths and corresponding nuts Stainless steel screws M2, M2.5, M3 of various lengths and corresponding nuts x 1
Spacers 3 x 7 x 5 mm Spacers 3 x 7 x 5 mm x 4

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Arduino IDE Arduino IDE

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3D printer 3D printer x 1
Loctite Loctite x 1
Screwdriver Screwdriver x 1
Various wrenches Various wrenches x 1
Soldering iron Soldering iron x 1
Hot air rework station or hot plate Hot air rework station or hot plate x 1

Story

Small Arduino desktop 3DOF record and play robot arm, mainly for STEM education. The end actuator is a vacuum suction cup. A small vacuum pump and a solenoid valve are also included. The custom PCB features a 32 KByte non-volatile I2C FRAM chip (MB85RC256V) on which the robot movements can be stored.

Schematics, diagrams and documents

Credits

Photo of markus-bindhammer

markus-bindhammer

Bipolar author, illustrator, and citizen scientist. Mathematician and engineer by education with a strong interest in robotics, chemical, and bioengineering projects. A few years ago I discovered drawing and writing for myself, which also helps me cope better with my illness.

   

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