I was also able to drill the rear angle that holes the roll bar support using the inner plate as a drill guide. This probably doesn't make sense to most of you, but I think builders will know what I am talking about. You have to back drill the angle at some point, so I decided to get it over with now..
This site shows the years of construction, first flights, and the continued adventures of Chad and Bekah in our RV-7
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Friday, March 25, 2011
Roll Bar Continued
Continuing slowly on the Roll Bar.. Tonight I was able to drill the upper flange and center strap.. Starting on the center strap, no matter how you do it, there is a lot of metal that needs to be removed on these to get them to fit appropriately.. I used an actual grinder which was loud and probably a bit dangerous, but it got the job done, then buffed the metal with the scotchbrite week when finished. Then I laid it in the track of the role bar and started drilling using my pre-drilled holes as guides. Not sure if I mentioned it, but earlier I used tape marked appropriately to pre-drill these holes at 3/32.. At this point I opened them up to 1/8 and pushed the hole through the strap using a #30 12 inch bit per the photo below. This top portion really wanted to bend upward off the table.. So I used clamps for every hole and think I was able to keep it in check.
Posted by Chad and Bekah at 9:25 AM
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