import bpy

# clear the screen by deleting all existing objects
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete(use_global=False)

##################
# make a base clamp
x = 16
y = 40
z = 27
bpy.ops.mesh.primitive_cube_add(size=1, location=(0,0,0))
part = bpy.context.active_object
part.scale = x, y, z
part.location[2] += 0

###################
# clear the flanks
x = 18
y = 20
z = 27
bpy.ops.mesh.primitive_cube_add(size=1, location=(0,0,0))
flank = bpy.context.active_object
flank.scale = x, y, z
flank.location[1] += 20
flank.location[2] += 4.3
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = flank
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
flank.location[1] -= 40
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = flank
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.ops.object.delete()

###################################
# make the cylinder for post
d = 12.9
l = 30
bpy.ops.mesh.primitive_cylinder_add(vertices=64, location=(0,0,0), radius=.5)
cyl = bpy.context.active_object
cyl.scale = d,d,l
cyl.rotation_euler[1] = 3.14159/2
cyl.location[2] += 0
# cut the cylinder out of the base part
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
bpy.ops.object.delete()

##################
# make a slit for clamping
x = 20
y = 1.2
z = 20
bpy.ops.mesh.primitive_cube_add(size=1, location=(0,0,0))
slit = bpy.context.active_object
slit.scale = x, y, z
slit.location[2] += 10
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = slit
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = slit
bpy.ops.object.delete()


bolt_height = 9
###################################
# make the cylinder for bolt shaft
d = 4.5
l = 30
bpy.ops.mesh.primitive_cylinder_add(vertices=64, location=(0,0,0), radius=.5)
cyl = bpy.context.active_object
cyl.scale = d,d,l
cyl.rotation_euler[0] = 3.14159/2
cyl.location[2] += bolt_height
# cut the cylinder out of the base part
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
bpy.ops.object.delete()


###################################
# make the cylinder for bolt head
d = 7.8
l = 6
bpy.ops.mesh.primitive_cylinder_add(vertices=64, location=(0,0,0), radius=.5)
cyl = bpy.context.active_object
cyl.scale = d,d,l/2
cyl.rotation_euler[0] = 3.14159/2
cyl.location[2] += bolt_height
cyl.location[1] += -8.5
# cut the cylinder out of the base part
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
bpy.ops.object.delete()

###################################
# make the cylinder for nut
d = 8.3
l = 3.5
bpy.ops.mesh.primitive_cylinder_add(vertices=6, location=(0,0,0), radius=.5)
cyl = bpy.context.active_object
cyl.scale = d,d,l/2
cyl.rotation_euler[0] = 3.14159/2
cyl.location[2] += bolt_height
cyl.location[1] += 8.4
cyl.rotation_euler[1] = 30*3.14159/180
# cut the cylinder out of the base part
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
bpy.ops.object.delete()


###################################
# make the cylinder for bolt shafts
d = 4.5
l = 40
yloc = 15
bpy.ops.mesh.primitive_cylinder_add(vertices=64, location=(0,0,0), radius=.5)
cyl = bpy.context.active_object
cyl.scale = d,d,l/2
#cyl.rotation_euler[1] = 3.14159/2
cyl.location[1] += yloc
## cut the cylinder out of the base part
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
# move it over and cut again
cyl.location[1] -= 2*yloc
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
bpy.ops.object.delete()

###################################
# make the cylinder for side nuts
d = 8.3
l = 30
bpy.ops.mesh.primitive_cylinder_add(vertices=6, location=(0,0,0), radius=.5)
cyl = bpy.context.active_object
cyl.scale = d,d,l/2
cyl.rotation_euler[2] = 30*3.14159/180
cyl.location[1] += yloc
cyl.location[2] += 3
## cut the cylinder out of the base part
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
# move it over and cut again
cyl.location[1] -= 2*yloc
bcut = part.modifiers.new(type="BOOLEAN", name="bool")
bcut.object = cyl
bcut.operation = 'DIFFERENCE'
bpy.context.view_layer.objects.active = part
bpy.ops.object.modifier_apply(apply_as='DATA', modifier='bool')
bpy.context.view_layer.objects.active = cyl
bpy.ops.object.delete()

part.rotation_euler[1] = 3.14159/2

part.select_set(True)
bpy.ops.export_mesh.stl("EXEC_DEFAULT", filepath='/home/jamie/docs/lab/3d_parts/mirror_holder/mirror_holder_clamp.stl' ,use_selection=True)