This add-on for the Eggbot replaces the stock egg cup on the egg motor with a new "Egg Coupler" of a very different design. Rather than using a concave polyurethane cup, the coupler features a wide, flat abrasive surface backed by firm but conformable foam rubber.
The abrasive surface provides a classic "grip tape" no-slip grip on eggs, plastic or wooden balls, and many other objects. The larger size and conformable surface allows this coupler to grip either rounded, flat, or irregular ends of objects. In comparison to the standard egg cups, this coupler makes it easier to establish an extremely solid mechanical connection between the motor and the egg, improving torque, reducing effective backlash and improving plot precision.
Note 1: Unlike the standard egg cups, the surface of the Egg Coupler is abrasive. Accordingly, there is some potential to scratch the surface of the object that you want to draw on. You can minimize this potential by relieving the plunger tension before inserting, repositioning, or removing your object. Please exercise common sense.
Note 2: Despite its larger length, the Precision Egg Coupler does not reduce the maximum size of an object that can be plotted with the Eggbot. While it is considerably thicker than the standard egg cups, it only extends further towards the motor, and not in the other direction.
Note 3: The larger diameter of the precision egg coupler can slightly reduce the total printable area for objects of small or medium outer diameter, because the pen can bump into the side of the coupler near the "north pole" of the object that is printed on. If desired, the outer radius of the precision egg coupler can be trimmed down mechanically, for example with a heavy-duty steel file.
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Home > Products > The Original Egg-Bot Kit > Egg-Bot Accessories
