I'm making some headway with this project and I wanted to start to make a pen lifter/changer. I was thinking it would be fun to be able to hold five or six different color pens. Being able to pan the gondola around without making a mark would be cool too.<div>
<br></div><div>So I started to come up with a design that uses two servos: <a href="http://mambohead.com/2011/10/drawbot-pen-changer/">http://mambohead.com/2011/10/drawbot-pen-changer/</a></div><div><br></div><div>I suppose it could be a stepper with a lead screw for lifting and dropping the pen and then a servo to rotate. It's just that the controller works with two steppers and two servoes (at the moment). So it would be nice to use the two steppers to run the drawing action and then two servos to change pens. </div>
<div><br></div><div>There are a few issues with the concept that I don't know how to solve...<br clear="all"><br><div><div><div>I think I need some bras tubing to help out here. If you have a look at my blog post you can see a sketch of the concept. Perhaps there are some better ideas floating around out there.</div>
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