Stepstruder Mk7 adaptation to Cupcake CNC
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Published on October 19, 2012
Description
This is my first print of the 3D Knot, and its being printed on my cupcake CNC which I adapted to run an Mk7 Stepstruder. It worked flawlessly at the first attempt, printing quality was improved a tenfold!
Instructions
This modification uses a Mk7 Stepstruder, a stepper driver and an extra microcontroller interface which monitors when the DC motor is supposed to be on and feeds the Stepper motor driver with a pulse train with constant frequency (customizable) so the stepper motor on the stepstruder can rotate. The whole modification is transparent for the ReplicatorG which still thinks there's a DC motor controlling the extrusion.
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License
Stepstruder Mk7 adaptation to Cupcake CNC by juanpablocanguro is licensed under the Attribution - Creative Commons license.
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Why not just use the much better "ugly cable hack" 5D mod which gives proper control, better reversal, volumetric options, and even acceleration control. http://www.thingiverse.com/thi... This hack requires only wiring changes and a stepper driver rather than your setup. You are very creative for making this mod, but it's just not the best way to upgrade being that it's more of a backwards compatible thing than keeping up with the latest firmware features.
Thanks for that... its exactly what I was looking for hahaha... what about the thermocouple on the mk7? do you use it or substitute it with a thermistor? thanks for that...