Customized version of http://www.thingiverse.com/thing:47956

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=47956

Using the following options:

plate_width = 2
4th_plate = none
1st_plate_bottom_hole = keystone1
3rd_plate_bottom_hole = none
2nd_plate_bottom_hole = keystone1
2nd_plate = keystone1
plate_size = 1
4th_plate_bottom_hole = none
5th_plate_bottom_hole = none
3rd_plate = none
5th_plate = none
1st_plate = keystone1