These files are the Fusion 360 source files of this project.
This linear actuator is almost completely 3D printed (except for the thread and some bolts, nuts and bearings).I curently don't have any position feedback or limited switches installed on it, I will add them in the feature when I'm going to integrate it in a projecct. It has a speed of about 25 mm/s on a 9V battery and draws about 1.7 Amps of curent. The motor is rated for 36 Volts. Running the linear actuator on a 36 Volt battery will increase the speed of the actuator. The transmission is a belt driven one wich uses a GT2 timing belt and a 3D printed GT2 pulley, This may not be the most ideal transmission for this task but it'll do for some testing. The linear actuator uses an M8 thread to convert the rotating motion into a linear motion. All parts (except for the 120 teeth pulley) are printed with a 1 mm nozle because there is no high accuracy required and it goes a lot faster. Some people are sceptic about using a 1mm nozzle but I think it's good for printing large objects like these without the need for accuracy. And it works great for me.
Video can be found here: https://www.youtube.com/watch?v=99aw_77oUvY
More info can be found here: https://hackaday.io/project/52706-3d-printable-linear-actuator
1 × l298N motor driver link: 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 link: 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 link: 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 link: 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 link: 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