About this 3D model

I designed this draw plate for my girlfriend who just started making Viking Knit jewelry. Most draw plates are large rectangular blocks of hardwood but due to the space constraints of the Makerbot and an interest in reducing the amount of build material required, I placed a the holes in a much tighter pattern than usually seen. So far, the ABS I made it out of is holding up well after several uses. The hole sizes in mm are 19, 16, 15, 13, 10, 9, 8, 7, 6, 5, and 4.