puts "========"
puts "OCC771"
puts "SAM1639"
puts "========"
puts ""
###########################
## Impossible fusung 3 shapes attached
###########################

restore [locate_data_file OCC771.brep] a 
explode a
puts [checkshape a_1]
puts [checkshape a_2]
puts [checkshape a_3]

bfuse res1 a_1 a_2

puts [checkshape res1]

bfuse result res1 a_3

set square 1306.68
set 2dviewer 0