Hi friends, do you remember this Mini CNC Plotter machine that uses hobby stepper motors and a few 3D mechanical components, now meet its big brother. This new machine includes two linear rails and two Nema 17 stepper motors for the X and Y axes. It also uses a mini servo motor for the Z axis to lift the pen. There is also a wheel with mini bearings to support the linear rail on the Y-axis. In the circuit part, I used an Atmega-based printed circuit board that I designed, which enables control of 3 axes, 3 limit switches, and a servo motor. Of course, all the mechanical parts are assembled with the help of designed 3D parts. Let's start the project by printing the 3D parts and assembling all the hardware step by step.

In the circuit section, you can optionally use an Arduino board and CNC shield, but I designed a printed circuit board with all components together, I have been using PCBWay for circuit board printing service. You can choose PCBWay for low-budget and high-quality PCBs.

Necessary file sharing has been done. All details about the project are being prepared, the step-by-step article will be completed as soon as possible.