just for reference....the second EKG rhythm is an abnormal one - shows a problem with the heart's atrium and also some restricted blood flow to the ventrical. was a paramedic for a while so these things pop out at me these days......
home built 4x4 watertable. Qcad, SheetCam and Linuxcnc
Miller 375 Cutmate
Lincoln buzz box and a Miller Mig
KNK MAXX vinyl cutter
The adventure started with a Cricut cutter that I hacked.