Finally got a test print out of my rostock mini for "0.5mm_single_wall_calibration_piece", but something's not quite right.

Here's a picture of the print: [imgur.com]

The first layer went down OK, but the second and subsequent layers seemed to miss touching the first (too high or too thin maybe?) and so they got dragged inward when the head rounded the corner. Unfortunately, I do not know what setting to alter to improve the print. Any advice would be greatly appreciated.

Have you calibrated your extruder steps/mm? You may have it set too low.

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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].

I did a rough calibration, but I will investigate that, thanks.