added screen printing illustrator and BMP files for heatbed
nothing important
added arm spring clip
added spring clips to arm assembly
updated arm separation distance
updated pscover
Merge branch 'master' of https://github.com/starno/NiuB
changed axis idler config
trashed old gerber files
extruder board rev1
Merge branch 'master' of https://github.com/starno/NiuB
Merge pull request #2 from samchoy88/master

Updated extruder board V1.1
Moved filament entry back 20mm from center on acrylic-top to better suit piral harness
made NS logo perimeter only with no fill
added euclid logo to carriage
changed carriage offset to 23mm from 25 for strength, added support to backside of standoff for less slop at higher speeds
Altered carriage printing assembly to fit more parts all in same build
improved window-bracket-plate printing assembly for effeciency
removed idler-bracket-magnet, updated idler bracket file
Changed idler magnet from 4mm thick to 5mm