Printrun | Pronterface , Pronsole , and Printcore - Pure Python

Build dimensions can be specified using the build_dimensions option (which can be graphically edited in Pronterface settings). This option is formed of 9 parameters: 3 for the build volume dimensions, 3 for the build volume coordinate system offset minimum, 3 for the endstop positions. The default value is 200x200x100+0+0+0+0+0+0, which corresponds to a 200x200mm (width x height) bed with 100mm travel in Z (there are the first three numbers) and no offset. The absolute coordinates system origin (0,0,0) is at the bottom left corner on the bed surface, and the top right corner on the bed surface is (200,200,0). A common practice is to have the origin of the coordinate system (0,0,0) at the center of the bed surface. This is achieved by using the next three parameters, for instance with 200x200x100-100-100+0+0+0+0. In this case, the bottom left corner of the bed will be at (-100,-100,0) and the top right one at (100,100,0). These two sets of settings should be sufficient for most people. However, for some specific complicated setups and GCodes and some features, we might also need the endstops positions for perfect display. These positions (which are usually 0,0,0, so if you don't know you probably have a standard setup) are specified in absolute coordinates, so if you have your bed starting at (-100,-100,0) and your endstops are 10mm away from the bed left and right and the Z endstop 5mm above the bed, you'll want to set the endstops positions to (-110,-110,5) for this option.