About this 3D model

This is the x-y calibrating aid/pointer from my earlier upload, but modified for use with a Prusa v2 with linear bearings (I just completed my prusa v2 kit from Makerfarm and realized that there is no way to mount the x-y pointer I made for my printrbot). Some improvements I made are: 1. Held via friction (using the linear bearing as a retainer) so no separate clip needed to hold it in place. 2. Two pointers at 90 deg on the tip so you can do the x and y calibration without having to readjust the pointer on the carriage. 3. The arm points straight down (more or less), thereby increasing the y-range by having the pointer closer to the nozzle position.