Thank you. So far I built 4 but only the first one was printed on MPCNC 
rest of them self-reproduced. So officially MPCNC is the father/mother of piper printers
Sorry links did not go through first time.
Files are available at https://www.thingiverse.com/thing:2794632
Instructions on assembling Piper1 are at http:\piper3dprinters.com
Link to youtube video: https://youtu.be/HZq3jNRCkO4
