poly 2020 "versatile printed part" for cnc and 3d printer

thingiverse

The primary goal of this project is to develop one versatile, multi-use printed component (the poly2020) that fits nearly everywhere. X, Y, and Z axes all share the same printed part. I designed this item with versatility in mind, enabling it to fit into many projects. I hope you will remix it as much as you want. Initially, I was curious about using 2020 extrusions due to their popularity, but found existing RepRap designs lacking in both simplicity and effectiveness. (If you're interested in the creative aspects of building 3D printers, check out my other design: https://www.thingiverse.com/thing:3141792) The main piece of this publication does not appear in the thumbnails; therefore, you'll need to download it to view a preview. poly2020.stl is the file name. Key points: First, they're printed in pairs and fit face-to-face. They're designed to slide onto 2020 aluminum extrusions using three regular bearing wheels like this: (https://www.google.com/search?q=3d+printer+plastic+wheels&safe=off&rlz=1C1CHBF_frCA840CA840&sxsrf=ALeKk03MnmXlfeIRHshUxI4QnUkpBKjnmg:1584544847645&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiAx5jGqaToAhXsUN8KHVgkA-UQ_AUoAXoECAwQAw&biw=1366&bih=576#imgrc=InRWm9gzirQnaM) (Fixed with M5 screws, approximately 35 to 40mm.) You can adjust the tension on the third wheel using a simple method: wooden screws (#8, approximately 3/4 inches) that are secured directly into the printed parts. (I know some of you may stop reading here, but trust me – it works perfectly fine; please continue reading.) They can accept another fixed 2020 aluminum extrusion (which could be the next axis). AND They can receive a NEMA 17 stepper motor. OR They can hold a roller blade with an 8mm rod used as a belt idler. (You can use an 8mm shafted belt pulley or print your own.) AND They can receive a bracket for a T8 nut (Z-axis). OR The belt can be fixed to it. (The belt runs through the 2020 slots.) From this versatile part, you can design your own 3D printer or CNC machine that you've always dreamed of. Small, big, cartesian, Prusa-type, etc. – the possibilities are endless! Personally, I've designed two completely different 3D printers using my poly2020 design. If you're not feeling creative, I've also included many other parts to build a large-sized 3D printer. You'll need to guess where some of the parts go, as I haven't provided clear building instructions for this kit. Notes: In the pictures, You will see older versions of the poly2020. You will notice that I used non-2020 aluminum extrusions for the body of the printer; however, here is a version using only 2020. https://youtu.be/gvQLy0o_F_Y