Quote Originally Posted by clough42 View Post
The nozzles are centered. If you only consider the bed area reachable by both nozzles, which is all you can use for two-material prints, you just lose the spacing width over a single extruder. So with dual, you lose 20mm, and with the flex you lose 27mm--half on each side. If you can physically increase the travel, you may be able to recapture some of the lost space by moving into areas that would have put the single nozzle off the glass.

For a single material print, you typically only lose half the spacing distance, because you can print out to the edge of the glass on one side. In your case, since you have extra glass on the left, if you print with the left nozzle, you may not lose anything.
Alright. I think that's what my long spiel was getting at but much clearer and more succinct. Thanks.

BTW, are any of the parts (idlers & pulleys probably, carriage sides & servo arm [hexagon] maybe) shared with IBDE?