Quote Originally Posted by jstrack2 View Post
I purchased this digital caliper for $9.19 (now it is $11.59): http://www.ebay.com/itm/271477770522...84.m1439.l2649

I took it apart, removed an internal metal strip that added friction and put it back together. Now the caliper slides effortlessly, perfect for the float idea. I am real busy this week so I doubt I will get to it in the next few days, but I will relatively soon try to build a float just to prove the idea works. I am not a beta tester, so there will be no printer involved. I will just have water dripping, a container and the caliper with the float attached. After seeing it slide so easily I am convinced that I can make the physical caliper float system work. That just leaves the electronics side, but in my experience that is by far the easy part.

just remember to keep track of how much water displacement there is on the float, if it fluxuates it will throw off your measurements.