I'm not so familiar with SLA, so you will have to explain a few things. How long does the laser need to be in the same spot, ie. what is the cure time?
Galvos are used in laser shows because they need to repeat the same path rapidly to exploit POV. Typically the speed is 20Kpps or higher which means a dot time of less than 50us. I think that is way to short for SLA. You could hold the frame for a few seconds to build exposure, but that would seem to be inefficient, because the beam is being moved unnecessarily. Additionally, for laser shows, we are not to worried about precision, it is for art not engineering. I think it would be difficult to get high accuracy. Galvos are also expensive and complicated to drive.
SLA would seem to have the opposite requirement, you want relatively slow moving beam at high accuracy. That is effectively how laser engraver/cutters work. The mirrors are moved on a conventional X-Y gantry driven by stepper motors.
The ILDA format is essentially a vector drawing format, but does not contain any specification for speed. So converting the GCode vectors is relatively easy, but I don't know how you would control the timing.
Delta bots would seem like a good way to go, but again it depends on what the cure time is. Conventional X-Y bots can actually go pretty fast, they are limited by the mass of the extruder and then the extrusion rate, which is a lot lower. Personally I would start with an X-Y bot since they are simple and well known, when the laser system is proved out then look to enhance the X-Y system.
Galvos are used in laser shows because they need to repeat the same path rapidly to exploit POV. Typically the speed is 20Kpps or higher which means a dot time of less than 50us. I think that is way to short for SLA. You could hold the frame for a few seconds to build exposure, but that would seem to be inefficient, because the beam is being moved unnecessarily. Additionally, for laser shows, we are not to worried about precision, it is for art not engineering. I think it would be difficult to get high accuracy. Galvos are also expensive and complicated to drive.
SLA would seem to have the opposite requirement, you want relatively slow moving beam at high accuracy. That is effectively how laser engraver/cutters work. The mirrors are moved on a conventional X-Y gantry driven by stepper motors.
The ILDA format is essentially a vector drawing format, but does not contain any specification for speed. So converting the GCode vectors is relatively easy, but I don't know how you would control the timing.
Delta bots would seem like a good way to go, but again it depends on what the cure time is. Conventional X-Y bots can actually go pretty fast, they are limited by the mass of the extruder and then the extrusion rate, which is a lot lower. Personally I would start with an X-Y bot since they are simple and well known, when the laser system is proved out then look to enhance the X-Y system.