Re: AUDAX
Publié : 12 mars 2015, 18:54
I started working on the stabs by preparing the ribs supporting the servo and incidence adjuster. To make sure these will be secured properly, i added small pieces of 1.5mm plywood to reinforce the liteply locally. I drilled the holes and temporarily attached the adjuster and servo using wood screws.
Baking paper is used to keep the stab jig from sticking to the building board. CA glue doesn’t penetrate the baking paper, and the jig is attached to the board using pins. There’s no need for printed drawings to assemble the structure; all i had to do was tracing 2 perpendicular lines on the paper, align the first 2 members of the jig with these lines and everything else is self-aligning.
I didn’t want to rely entirely on the ribs to achieve the proper curvature of the leading edges, so during design stage i also added a horizontal former which will help bending the leading edge with improved accuracy and perfect symmetry between the 2 stabs.
To make the stab structure easy to detach from the jig, the ribs are attached to their supports only in a few points. To prevent any glue running from the joints to accidentally flow into the small spaces between the ribs and their supports (thus making the structure difficult to detach from the jig), all rib supports have semi-circular or oval cut-outs situated directly below the joints. I hope the picture below explains this better:
A few more pictures showing the assembly process:
Baking paper is used to keep the stab jig from sticking to the building board. CA glue doesn’t penetrate the baking paper, and the jig is attached to the board using pins. There’s no need for printed drawings to assemble the structure; all i had to do was tracing 2 perpendicular lines on the paper, align the first 2 members of the jig with these lines and everything else is self-aligning.
I didn’t want to rely entirely on the ribs to achieve the proper curvature of the leading edges, so during design stage i also added a horizontal former which will help bending the leading edge with improved accuracy and perfect symmetry between the 2 stabs.
To make the stab structure easy to detach from the jig, the ribs are attached to their supports only in a few points. To prevent any glue running from the joints to accidentally flow into the small spaces between the ribs and their supports (thus making the structure difficult to detach from the jig), all rib supports have semi-circular or oval cut-outs situated directly below the joints. I hope the picture below explains this better:
A few more pictures showing the assembly process: