Up drill Outboard to Inboard wing attachment page: ONX-W05

Discussion for Onex builders on specific plans page experience. These posts are limited to technical suggestions such as assembly order, challenges, or techniques related to specific plans pages.

Up drill Outboard to Inboard wing attachment page: ONX-W05

Postby dhogue » Fri Dec 24, 2021 5:47 pm

Hello Onex builders,

Mostly done (~98%) with the fuselage/controls/outboard-wing construction.

At this time I am stuck.
The Completed outboard wings are connected to the Inboard main spar with a 1/4 in bolt as called out in the plans - page: ONX-WO5

I had a real struggle just getting the Pivot bolt holes up-drilled/aligned enough to insert a 1/4 in bolt.

As I now attempt to up-drill 2 main spar holes the drill does not drill into the hardened stainless steel inboard spar caps/outboard hardened stainless steel pivot plate.

What I'm asking:
Can you tell me what series of drill bit Types/Sizes that worked for you?

Also: I am using a an electric/corded drill. Is other advisable?

I use very slow drill speed and plenty of cutting fluid.

This issue has me currently build stopped.

Thank you in advance for telling me what worked for you.

Don
Don Hogue
Onex 0173: Tailwheel: AeroVee Turbo.
Horiz/Vert Stabs, Rudder/Elevators, Fwd/IB/OB/Aileron Bellcranks on Ribs and Main Fwd/Aft Center Wing Spars, Fuselage : Complete.
WIP: Wings
dhogue
 
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