3-Axis Polar CNC Machine Presentation

The NEXTPCB support me for this project. If you have a PCB project, please visit the NEXTPCB website to get exciting discounts and coupons. ① Only $0 for 1-4 layer PCB Prototype: https://www.nextpcb.com/pcb-quote?act=2&code=tunendd ② New customer get $100 coupons, register at: https://www.nextpcb.com/register?code=tunendd Here are mid-summer sales at NextPCB: ① Up to 30% off for the PCB orders. ② Up to 20% off for the PCBA orders. The 3-Axis Polar CNC general configuration is including: three NEMA-17 stepper motors, leadscrew and belt driven system, PVC & acrylic frame and it is controlled by Arduino Uno plus GRBL CNC Shield. Its operation is as follows: one Y axis spin a rotary table, one X axis move linearly forward and backward relative to the centre of rotary table, and one Z axis move linearly up and down to carry out the task, e.g: lift a pen up/down. Instructables link: https://www.instructables.com/DIY-3-Axis-Polar-CNC-Machine/ THANK FOR YOUR WATCHING!!! Please LIKE, SHARE and SUBSCRIBE to my YouTube channel.