This is not SPAM, it is an evaluation of the new string potentiometer that AndyMark is carrying. FRC 2468 provided our CAD files for this product to AndyMark. Mark mentioned me that they had made some modifications to help with the printing of the model (removal of support material when printing).
We used a model of this spring pot our robot shooter this past year. It was very effective for us as a team. We used it to give feedback/control on our shooter deck angle. It does have limitations as mentioned in the video but we knew that up front. Our use only required about 5-6 inches of pull on the string of the pot.
The original files for our string pot can be found on the AndyMark website here:
http://www.andymark.com/product-p/am-2618.htm
Our original design addressed some of the issues mentioned in the video (no hole for the string pot, hole for the brass fitting the string runs through, the set screw hole). We are in the process of working up a white paper on our use, programming and design of the string pot on our Ultimate Ascent robot.
Thanks to our mentors Joe Hershberger and Scott McMahon for leading our team on this project.