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Perpendicular drilling, free hand
Does anybody have an easy, practical way to drill perpendicular to the surface using hand held drill. I find it especially challenging drilling the door hinges (RV10) from inside! Any slight angle and the screw heads on outside highlights your mistake.
Thanks. Johan |
I would just eyeball it best as you can. If you don't like the result, glass it in and try again. Once completed, those screws will only be visible to NBA players.
Jim Berry RV-10 |
Do you normally centerpunch first before drilling? This helps tremendously and the only other idea I would have is to create a drilling fixture if you feel it's worth the trouble.
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Try one of these http://www.aviationpros.com/product/...70-drill-block
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I like to use this. In tight spots I've used the center guide without the plastic housing.
http://www.averytools.com/prodinfo.asp?number=25783 ![]() |
We use these a lot in the industry.
http://www.ebay.com/itm/7-PC-Drill-B...-/141097447572 Edit: Larry beat me to it.. |
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I think I need to build another plane just so I can use these :) |
When drilling into something shiny like aluminum, look at the reflection of the bit and the bit itself - they should be a straight line, not a 'V'. You need to look both from the back and from the side.
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There is always some way to make a jig.
http://www.kitplanes.com/issues/30_1...s_20873-1.html Sadly, it is "subscriber only" content...but you can cure that ;) |
What Bob said works, provided the aluminum is not bent or curved.
Greg |
Thanks for all the responses
Avery tool on order now.
Johan |
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I am not a subscriber to Kitplanes. I have so many subscriptions (professional and recreational) that I am slowly letting go of some. Please tell/motivate/educate me what Kitplanes bring to the table that makes it worthwhile. Appreciated. Johan |
Yes there is
You can either cast a shadow that lies 90 degrees from where your eyes are, or use a vanity mirror. I prefer my "bean bag" mirror. It lays where and at what angle I place it, allowing me to "eyeball" 90 degrees from two positions at once.
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In the context of this thread, I can tell you the Kitplanes crew is pushing very hard to maximize homebuilder content...hardcore how-to coverage of subjects useful to those who build and maintain EAB aircraft. It's an area nearly abdicated by others. I can also say the subject list is far larger than you'll see here....fabric, woodwork, and welding being just three of many examples. Is it for you? The only way to find out is to gamble $18 or so, for which you'll get both the future issues and the online archive of past material. If you like it, great. If you don't, the magazine did not meet your needs, and I know the editor will really appreciate hearing how it missed the mark. |
I subscribe to 8 aviation mags. (it's an illness). Kitplanes is my favorite, by far. Sorry for the thread drift.
Jim Berry RV-10 |
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