Those are the problems of early adopters! They haven't even figured the automatic tool-changer out yet! Soon they will be able to laser solder and wire wrap - as tools added to a open source platform! Multimedia 3D Printing, pick and place and 'wire wrapping' are a match made in heaven! Besides if you print channels for the conductive ink you can reduce the resistance by increasing the trace section! I just like to see those steps materializing! No worries they are inevitable now! On 7/17/14, Joe Wronski wrote: > I don't know whether we are looking at the same web page, but > > > claims the sheet resistance to be 0.087 ohms / square. How much more > math do you need? > > But that's not my motivation to comment, which is more about the photo > of the resistivity test. A Radio Shack meter with regular leads stuck > on the surface of the board displaying 0.7 ohms. Most cheap meters I've > used will measure the same value with the leads shorted together, and > they have no calibration knob. > > Joe W > > > On 7/17/2014 9:30 AM, Peter Johansson wrote: >> On Wed, Jul 16, 2014 at 9:39 AM, Tobias Gogolin >> wrote: >> >>> Reprintable circuits! >> Before you get too excited, scroll down to the section on >> conductivity. It is only 2-3 lines and easy to miss. Then calculate >> the resistance of typical PCB traces from the information provided. >> There is a *reason* they don't do the math for you. This is basically >> useless for anything other than digital signals. >> >> -p. > > > -- > Joe Wronski > jwronski@stillwatereng.net > www.stillwatereng.net > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 Tobias Gogolin Tel. D1 (49) 0151 5187 5210 Tel. D2 (49) 0152 0839 5060 skype: moontogo messenger: usertogo@hotmail.com You develop Sustainable Ranch Technology at http://tech.groups.yahoo.com/group/SURA-TECH an Open Source Electric Motor/Alternator at http://groups.yahoo.com/group/Performance_Axial_Flux and an Open Source Motor Controller at http://groups.yahoo.com/group/GoBox --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .