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

thingiverse

The main idea of this project is that there is one ALMOST MAGIC MULTI-USE printed part (the poly2020) that fits almost everywhere. X Y and Z axis, all the same printed part. I designed this thing to fit in many projects. I hope you will remix it as much as you want. First, I was curious about trying 2020 extrusions as many good makes use them, but found no existing reprap designs good enough and simple enough. (Anyways, what I like the most about building 3d printers is the creative part of designing it. Curious? Take a look at this other desing I've made: https://www.thingiverse.com/thing:3141792) Weird thing, the master piece of this publication don't appear in the thumbnails. I guess you'll have to download it to have a preview. poly2020.stl take a look at it. Main lines: First, you print them in pairs, they fit face to face. They are made to slide on a 2020 aluminum extrusion using 3 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 ~35 to 40mm). You can adjust the tension on the 3rd wheel with a simple and intuitive way: wooden screws (#8 ~ 3/4") that are secured directly in the printed parts. (I know some of you will stop reading here... But I'm telling you it works just fine: keep reading) They can accept an other fixed 2020 aluminum extrusion (witch will/can be the next axis) AND They can receive a nema 17 stepper motor OR hold a roller blade with a 8mm rod witch is used as an belt idler. (you can use a 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 on it. (the belt runs trough the 2020 slots) From this almost magic part, you can design your own 3d printer or cnc that you've dreamed about. Small / big / cartesian / prusa type, etc. Personalty, I've designed 2 completely different 3d printers using my poly2020 design. If you don't feel so creative, I've also put many other parts forming a kit to build a big sized 3d printer. You'll have to guess a little bit where parts should go as I've not prepared a clear building instructions for this kit. Notes: in the pictures, You will see some older versions of the poly2020 You will see that I used not 2020 aluminum extrusions for the body of the printer. But here I uploaded a version usiging only regular 2020 https://youtu.be/gvQLy0o_F_Y