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Old 11-29-2011, 02:32 PM
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DustBen
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Default RE: How do you sand the leading edge of the elevator?


ORIGINAL: skeeter_ca

So what would you guys consider the best angle to sand the leading edge of a control surface? i have read both 60 and 45 degrees have been used.

skeeter
If you bevel at 60 degrees (30 degrees from the true leading edge), you'll have binding in extreme control surface deflection. If you bevel at 45 degrees, and break the remaining corners and blend it to a semi-circle, you'll have zero bind.

Here is where past experience and or the print comes in handy. If the elevator is only going to move a minimal amount, then use the shallower bevel, but if you're preparing a 3D concept with a large volume of deflection, you'll need the 45 degree bevel worked into a semi-circle.

As you hinge either shape, you'll see the action and how it works.