Need your ideas/opinions for a second build !

I everybody, i build a mix of prusa i3/prusa i3 rework printer last winter that is working good and i'm looking to a second built. I'm thinking at a rigid aluminium frame, 24 volts hotbed (to get hot fast !),
dual extruder (maybe mount on the side) any ideas/opinions ? It's for next fall and i'm open to everythink !

Thanks alot !

Have you considered a delta? See [miscsolutions.wordpress.com] for my latest delta build, with 300mm diameter x 480mm high build volume, fast bed heating, and fast auto calibration.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

This will provide some things to think about while you plan that next build: [www.instructables.com]