Carton 100mm f/13 "MD" OTA Construction - Holes Drilled in Baffles to Mount to Threaded Rods
 

Holes being drilled in baffles to accept three threaded rods. (Click to see an enlarged image.)

 
In preparation to drill the holes for the three 1/4-20 threaded rods (which will be used to form the baffle rack), the baffles are stacked and held in place to a piece of plywood on the plate of my drill press with tape to prevent them from shifting during the drilling process. The hole were cut at 120-degrees from each other.