The BladeJet is really a cool machine - and I've misplaced my link to the HECKTOR. If you've seen it you'll know your project is VERY hobby-able. HECKTOR is an x-y cable system a couple of (german?) students put together. Very much Grafitti potential. I haven't checked in on it for a bit - so it may have been refined/or dead.
Might try thru the Majosoft site.
:cheers: Jim
Experience is the BEST Teacher. Is that why it usually arrives in a shower of sparks, flash of light, loud bang, a cloud of smoke, AND -- a BILL to pay? You usually get it -- just after you need it.