Hi,
Im'building my first repstrap:
mechanical: McWire
elettronics: 3G
firmware: 1.6 (preloaded from MakerBot)
host: replicatorG-10
All go right but the Y axe seems mirrored. So this little G-code:
G21 ;switch to metric
G1 X10 Y10 F200
X10
Y10
X-10
Y-10