You working with hairspray?
638,633 bricks.
how long did it take
About 20~40 mins, but the obj file reading and processing was done in lua and took just about 10 seconds.
Can you change the sizes of the build or are they all set to the original size?
Entirely depends on the obj file, it's exactly the size of the model.
so in theory you can change the size of the obj file and get smaller builds?
Is your script using smaller bricks? Hairspray uses bigger bricks.
so did you find out how to use more than 1x1f ?