step 1 Decide surface with hole location
module 2 (with no hole mark)
module 1 module 3 (with hole mark)
step 2 Decide surface with no hole location
module 2 (with no hole mark)
module 1 module 2 (with no hole mark)
step 3 Final assembly
module 2 (with no hole mark)
module 2 (with hole mark)
module 2 (with no hole mark)
module 2 (with hole mark) module 1
RC9 | BRICKCHAIN
144