Carton 100mm f/13 "MD" OTA Construction - Aluminum Plates for Internal Tube Baffles
 

4" x 10" x .032" Aluminum sheet for baffles. (Click to see an enlarged image.)

 
It was my first thought to make four baffles for this instrument, but I finally settled with three. In my search for material to make them with, I found some pieces of 4" x 10" x .032" thick aluminum sheet at Ace Hardware on their K&S hobby rack. Each baffle will be cut out using a 4" hole saw, followed by cutting out of the focal plane holes, which get progressively smaller as you reach the focal plane.