3D scan (end mill) and print (gymnastic rings)


Our assignment was to scan something into the computer (atoms -> bits) and print something from a computer (bits -> atoms).


Scanning – end mill (EndMill.zip)

Erik was on the scanner before me, so I took a couple pictures of him working on scanning his face.  Pretty cool stuff.






For my scan, I decided to scan an end mill.  I was interested to see how well the scanner did at picking up the complex geometry between each flute.





Overall, I was very happy with how it turned out.  As you can see, the image looks almost exactly like the original end mill.  Good luck cutting with a 3D printed end mill though…




Printing – gymnastic rings (Ring.zip)

When I think about what people use 3D printers for, I usually think of novel, ornamental objects that couldn’t be made in any other way, or quick visual prototypes of parts that will ultimately be made in some other fashion.  I was interested in printing something functional. 


When I learned that the Dimension printer prints using ABS, I immediately knew I wanted to print gymnastics rings.  Why, you might ask?  Well, I follow the crossfit.com WODs, which use rings, and because rings are an awesome strength training tool.




And because portable rings like these cost about $70.  So, I figured if I could make some rings for class, then I’d get my homework done and end up with something very useful that I want anyway.




Here are a few pics of the Dimension printing (not my parts).  





And here is the finished product!  I made the model in Solidworks and saved it as a .stl before sending it to John and Tom.  They took care of the rest.




I used some parachute cord to tie them up and they work great.