puts "================"
puts "BUC60937"
puts "OCC178"
puts "================"

restore [locate_data_file BUC60937.brep] a 
explode a
checkshape a_1
checkshape a_2

bfuse result a_1 a_2

checkprops result -s 835463 
checkshape result
set 2dviewer 0