<p>Anybody ever tried to retrofit a heatbed to the da Vinci mini w with the proper dimensions (165 mm x 165 mm or 6.5&quot; x 6.5&quot;).</p>
<p>Where can I find a heatbed that fits and a corresponding power supply / PID controller?</p>

[{'answer_id': 5576, 'author': 'fred_dot_u', 'author_id': 854, 'author_profile': 'https://3dprinting.stackexchange.com/users/854', 'pm_score': 1, 'selected': False, 'text': "<p>The firmware of the printer reads the g-code, in this instance, for z-axis movement. The g-code provides only (primarily) millimeters of movement and direction, along with speed.</p>\n\n<p>The firmware reads those figures, figuratively speaking, and knows from the values stored in the firmware, how many steps to rotate the motor, in what direction and at what rate.</p>\n\n<p>I suppose if you were a glutton for punishment, you could write some code to convert the existing measurements to ones that are adjusted for the new screw, but that's just crazy. Imagine that your new screw provides for 3.729 times the movement that the old screw did per unit of rotation. You'd have to find all the z-movements in the code and apply that factor to those numbers. I suspect rounding errors might make for a less-than-satisfactory print.</p>\n\n<p>As you've mentioned in your question about editing the firmware, one may expect that you have an idea what is involved. If not, that may be the topic of another post.</p>\n"}, {'answer_id': 5577, 'author': 'Sean Houlihane', 'author_id': 4927, 'author_profile': 'https://3dprinting.stackexchange.com/users/4927', 'pm_score': 0, 'selected': False, 'text': "<p>You can set the 'steps per mm' for the extruder (and the other axes) by sending GCODE to the printer, and store this in the internal memory. Re-flashing the firmware only affects the 'factory reset' configuration of the printer parameters.</p>\n\n<p>To see how to calibrate your extruder, you're probably best looking for videos since although the process is just a few GCODE commands, the whole process is not easy to understand.</p>\n"}]
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