Mask video projection based stereolithography with continuous resin flow

A system for additive manufacturing of an object in three dimensions consisting of an X dimension, a Y dimension, and a Z dimension, the system comprising:

• a tank configured to contain a liquid resin, the tank comprising a window in a bottom portion of the tank;
• a first translation stage coupled with the tank, the first translation stage being configured to move the tank in the X dimension, the Y dimension, or both;
• a build platform configured to be located within the tank for at least an initial portion of building a part;
• a second translation stage coupled with the build platform, the second translation stage being configured to move the build platform in the Z dimension;
• a light projection device configured to emit light through the window and into the tank to cure the liquid resin;
• and
• a computer control system comprising at least one hardware processor and a storage device coupled with the hardware processor, the computer control system being coupled with the first translation stage to control movement of the tank, the computer control system being coupled with the second translation stage to control movement of the build platform, the computer control system being coupled with the light projection device to control emission of the light, and the storage device encoding a program configured to cause the computer control system to
• cause the light projection device to emit the light into the tank to cure the liquid resin to manufacture the part on the build platform,
• cause the first translation stage to perform a sliding motion of the tank simultaneously with causing the light projection device to emit the light into the tank, and
• cause the second translation stage to elevate the build platform in the Z dimension simultaneously with causing the first translation stage to perform the sliding motion;
• wherein the sliding motion of the tank and the elevation of the build platform are both performed as continuous motion synchronized with each other;
• and
• wherein the continuous motion is synchronized using a first translation speed corresponding to the sliding motion of the tank and a second translation speed corresponding to the elevation of the build platform, wherein the speeds are calculated based on a maximum projection distance associated with the emitted light.