Pinya3 is an open 3d food printer platform design to fit in the kitchen and work with as many different types of food and mixtures extruders as possible.
The printer configuration is based on a delta robot. Because it allows to have a fix printing platform, meaning that the food that is being printed does not move. The second reason is because this configuration permits easy access and disassembling moving parts (specially important for cleaning operation). But I can not fool anyone, the true reason is that I love how they move.
The desired printable area must have the diameter of a regular dish. But what does that really means? I am not sure so I head to the kitchen to measure different plates sizes.
ID (inner diameter) ranges from 1.6 to 9 inches (4-23 cm), OD (outer diameter) varies from 4 to 11 inches (10-28cm). The inner diameter corresponds to the flat surface on a dish, where we want to print. And the outer diameter is the opening size that the printer must have fit the plate inside.
The last one is going to set the dimensions for our printer because we want to be able to fit dishes easily into it! Knowing that the distance between delta towers must be at least 11 inches, we can abuse this awesome delta calculator to get a rough idea on the printer dimensions. If you feel like doing some kinematic calculation go ahead. I did this in the past, and turn out the building process is way more important to have a nice accuracy. Still food is about deliciousness not precision (yet).
Printer height is limited by the distance in Pier 9 kitchen between the counter and the cabinet around 50cm (20").