A different approach to tacking the corners then soldering everything else. https://github.com/conorpp/SMT-Gravity-Holder Part of this project to build a U2F token: https://github.com/conorpp/u2f-zero --=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 .