I'm selling some parts from the printer described in my original blog entry at [miscsolutions.wordpress.com], including a set of 2020 Robodigg metal corners, extrusions, wheeled carriage trucks etc. See [forums.reprap.org] if interested.

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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].