A method for additive fabrication of foot orthotics comprises printing, in successive layers, a side support； and printing, in successive layers, a foot orthotics on the side support, wherein the foot orthotics comprises a side edge printed directly on top of the side support, and is supported on and connected to the side support through the side edge. A controller for controlling operation of an additive fabrication device comprises a processor and a memory. The memory stores thereon processor-executable-code, the code when executed by the processor, causes the additive fabrication device to print foot orthotics according to the above method. A method is also provided to construct a data structure for additive fabrication of foot orthotics according to the above. A computer comprising a processor and a memory is provided for constructing such a data structure.
