3D-printable linear actuator

myminifactory

Video can be found at https://www.youtube.com/watch?v=99aw_77oUvY. This 3D printed linear actuator is almost entirely self-made, with only the thread and some bolts, nuts, and bearings sourced from elsewhere. At present, I do not have any position feedback or limited switches installed on it; I plan to add these features in the future when integrating it into a project. The speed of this actuator is approximately 25 mm/s when powered by a 9V battery, drawing about 1.7 Amps of current. The motor is rated for 36 Volts, and running the linear actuator on a 36 Volt battery will increase its speed. The transmission is a belt-driven one using a GT2 timing belt and a 3D printed GT2 pulley; this may not be the most ideal setup for this task but it will suffice for testing purposes. This linear actuator utilizes an M8 thread to convert rotating motion into linear motion. All parts, except for the 120 teeth pulley, are printed with a 1 mm nozzle as there is no need for high accuracy and it prints much faster. Some individuals question using a 1mm nozzle but I find it suitable for printing large objects like these without requiring precise accuracy. It works well for me. Components used: 1 × L298N motor driver - https://www.banggood.com/Wholesale-Dual-H-Bridge-DC-Stepper-Motor-Drive-Controller-Board-Module-Arduino-L298N-p-42826.html?p=E01411629100201406T1&custlinkid=255131 1 × Arduino nano V3 - https://www.banggood.com/Geekcreit-ATmega328P-Nano-V3-Module-Improved-Version-With-USB-Cable-Development-Board-For-Arduino-p-933647.html?p=E01411629100201406T1&custlinkid=255135 1 × 775 electric motor, 36 Volt - https://www.banggood.com/775-Gear-Motor-DC-12V-36V-3500-9000RPM-Motor-Large-Torque-High-power-Motor-p-1091058.html?rmmds=search&cur_warehouse=CN 1 × Pulley for motor side, 5mm bore, 16 teeth - https://www.banggood.com/162036T-GT2-Aluminum-Timing-Pulley-For-DIY-3D-Printer-p-1001266.html?p=E01411629100201406T1&custlinkid=669283 2 × 8mm inner diameter bearings - https://www.banggood.com/10pcs-8x19x6mm-Steel-Sealed-Shielded-Deep-Groove-Ball-Bearings-698ZZ-p-980204.html?rmmds=search&cur_warehouse=CN 1 × GT2 timing belt 260-GT2-6 - https://www.robotdigg.com/product/283/260mm-264mm-268mm-280mm-288mm-or-294mm-gt2-endless-belt 1 × M8 thread rod 7 × M8 nuts Video can be found at https://www.youtube.com/watch?v=99aw_77oUvY. More information about this project is available here: https://hackaday.io/project/52706-3d-printable-linear-actuator. All my project files, instructions, and schematics are provided for free so everyone around the world can enjoy them. Feel free to support me so I can create and share even more awesome projects. Any amount of support is greatly appreciated - paypal.me/BrianBrocken. Have a nice day!