iGaging and Shahe scales benefit greatly from bypass capacitors in the 0.1uF range. These capacitors are very common and can be purchased for about $0.1/peace from any electronic component supplier, eBay, etc. Battery Holder As mentioned above, it's possible to power the scales from two 1.5V batteries. Plug the yellow jumper you soldered to the USB scale cable and install it any of the RIGHT three pins on the four pin header you previously soldered in place at J5. The left-most pin is a ground. OpenDRO generates a clock signal that is appropriate for the iGaging scales and outputs it on all three PWM outputs. This DRO also includes distance-to-go modes in both absolute and incremental. It can control of up to three NC analog, point-to-point axes and a spindle with the PT 8016 "ACTIVE Version". This new HEIDENHAIN PT 8016.