To make dome as stable as possible, there are three layers for each arch (3.6mm thickness). As a result, I need to glue them together whichi is a very huge workload! I took three three days in total on gluing.
Because laser cut cannot do curve cutting, I need to cut it by myself for the top part of the dome so that the top part can be fixed. Natalie suggested me that to cut a hexagon shape and put each arch on it averagely, then using bolts to fix them.