This is the Version 2.0 of the Arduino Homework Writing Machine - 2D CNC Plotter. this version comes with a lot of upgrades from the previous one, which includes improved pen lifting mechanism, clip type pen holder for easy attachment and removal of any kind of pen, tilt mechanism to set the pen at any angle, added rubber feet for stability and improved tolerances on the 3d printed parts.

this machine can be used with any pen, pencil, or other drawing tool to write on a paper or any notebook for works such as homework, drawing, sketching, caligraphy, art, etc.

It uses an arduino and a CNC shield V3.0, with stepper motors and stepper motor drivers to enable the movement in x and y direction. i have used aluimnium profiles and 3d printed plates for the machine structure. rubber feets are added for stability on smooth surfaces. i have used belts and pulleys for linear motion from the motors to the plates. for power supply i have used a 12v 2A power adapter. after powering the machine, connect it to a computer and use universal gcode sender software to send the gcodes to the machine. you can take any text or image file in inkscape and convert it into a gcode in very few and simple steps. once the gcode is ready, open it in the universal gcode sender, connect the COM port of the arduino and you can start executing the file. you can also change the speed and acceleration of the machine in the firmware settings menu under the machine tab of the universal gcode sender software.

UPDATE: Writing machine working demo video:    • How to use Writing Machine - 2D Pen P...  

you can find the Part links below:

NOTE: the servo motor requires a modified version of the GRBL code. it will not work with the standard GRBL available online. i have modified the GRBL to work with the servo, you can download it from the link below.

Design and GRBL Files: bit.ly/3A5mMzf

Part List, BOM and Design files Links: https://docs.google.com/spreadsheets/...

Aluminium Profiles used are 20mm V Slot 40mm length each

NEMA 17 Stepper Motor: https://bit.ly/3mUykOU
DRV8825 Driver: https://bit.ly/3EUArYX
arduino uno https://bit.ly/31I0FQf
cnc shield https://bit.ly/2Yp4hVW
servo mg90 https://bit.ly/3EYFLuG
12V 2A Adapter https://bit.ly/3bOOX8j
rubber feet set: https://bit.ly/3H0VXNO
2020 profile https://bit.ly/3bOCNfJ
2040 profile https://bit.ly/3qio2Kw
fasteners https://bit.ly/3bS4C6M
m5 sliding nut: https://bit.ly/3woD16G
gt2 belt pulley set:https://bit.ly/302eZmj
idler pulley: https://bit.ly/31uNkun
V wheel Set: https://bit.ly/3mUPKux

#cnc #arduino #writingmachine