Robust Pen Holder for Drawing Robot

thingiverse

This is a revised design for a more robust pen holder for an Arduino drawing robot, engineered to be printable in an upright position without supports, ensuring a stronger print. Previously, I utilized this design, which worked well initially:\r\nhttps://www.thingiverse.com/thing:2058866\r\nHowever, after some time, the pen holder snapped as shown in the picture (possibly due to inadequate fill, poor layer adhesion or rough handling), prompting me to create this new design, which I hope will be more durable. Time will tell.\r\n\r\nThe original Arduino drawing robot design is available here:\r\nhttps://www.thingiverse.com/thing:1517211\r\n\r\nThis design requires an M3 screw to secure the pen (I'm using an M3 x 20mm socket head cap screw, which works effectively). It's helpful to wrap a turn of insulation tape around the pen before tightening the screw against the pen.