Racks and Pinions
thingiverse
You can find all files here https://cults3d.com/en/3d-model/gadget/racks-and-gears I have designed 16 different sets of racks and gears (32 Parts) so you can easily 3D print them or use in your projects. By downloading you will get : -5 different Double Helical Gears and Double Helical Racks -5 different Helical Gears and Helical Racks -6 different Spur Gears and Spur Racks I have 3D printed a few of them and they work very well.
Download Model from thingiverse
With this file you will be able to print Racks and Pinions with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Racks and Pinions.