ORIGINAL: Chuck86
Drilling hole in ribs......stack them up, wrap some masking tape around them and use a regular drill bit? The balsa is so soft I don't want to tear it.
On the servo mounting, I have seen pictures of it done this way but the bay, or area between ribs, on this model seems wide, wondered if it needed to be divided with some framework and using the hatch on a smaller area.
Sorry guys. Newbie here.
DO NOT DRILL IT WILL NOT WORK! Simply take a small 3" piece of 1/2" coper pipe sharpen one end on the inside with a xacto blade. Rotate the tube holding the blade to the edge. Now use this coper pipe to drill the 1/2" hole in the stack of ribs it works much better than a drill and will not damage the ribs.
You can make the bay area smaller if you like it matters little in the end as long as the hatch is flush is the goal.