Panther Sport Aircraft Forums

What Tony shows is essentially the way I did mine. You shouldn't have to use much force on the drill, if you do, you probably need a new bit. If worried about bending, you can put a 3rd block in the center, bit harder to shim.

Thanks Tony! I couldn't remember if only two blocks on either end were enough support to prevent flex. That looks super easy and leaves room for stack clamps.

https://picasaweb.google.com/tonyboytoo ... 8634648578

https://picasaweb.google.com/tonyboytoo/Spars

Tony

Started marking drill holes on spars with pen last night. But what is ideal position on table for drilling? If I keep the spar vertical on the table (like in the wing), the entire spar is in contact with a level surface, but it is hard to drill with bit horizontal.

If I place the spar on its side, there is a taper on the outboard end on the only side that doesn't have stuff sticking out of it, so I would need to put shims under the outboard end to support it, so the entire structure is level.

Thoughts from those who have drilled them already?