by Sonex1243 » Sun Jul 05, 2015 11:15 pm
Getting ready to mate the spars after two attempts of getting the attach blocks / angles assembled and installed. I have seen some discussion and other builder web sites and it seems that using a drill press on the attach blocks is a must for a good hole to 1/4" through both blocks and webs.
My dumb questions are:
1. What size bits / length are generally used to get through the attach blocks for the up sizing process? I'm looking at 13/64 to 7/32 to 15/64 and 1/4 on the attach blocks. Would piloted drill bits help if available? Also, looking at black oxide or titanium?
2. What methods did you use to get the spars on the ground / floor level to the drill press?
As usual, I am sure I am over engineering this again!
Ken S
SONEX #1243 N424SX (reserved)
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