Chapter 25 – Underwing epoxy wipe

Today was all about getting the underside outboard left wing, inside bottom winglet and winglet intersection fairing epoxy wiped.

Using West epoxy with the fast 205 hardener, I barely had time to start on anything else before it was time to do another round of epoxy wipes, which I did 5 in total (yes, it’s still VERY hot weather currently).  In addition, along with the outboard areas I also epoxy wiped the left wing bottom leading edge.

I then spent about 3 hours prepping and post processing the CAM G-code files to machine Guy William’s main gear 1/4″ thick axle spacers.  These will kick the main gear wheels and especially the brake rotors out away from the main gear a bit to protect from any inadvertent rubbing or heat generating events.

Since I have a 6″ x 6″ 6061 aluminum plate, I’ll also be machining my fuel injection fuel distribution “spider” mount (blue part) to eventually move it down to the underside of the engine IF I experience any vapor lock or hot start issues with it located currently on the top side.

Part of that multiple-hour effort in CAM was prepping 2 separate post processed G-code files to plasma cut Guy’s new larger heat shields that will be mounted in between the main gear legs and the axles/spacers.  I also created the drawing from a quick cardboard template we made at his hangar after I glassed up his right main gear leg.

I then headed back out to the shop and removed the clamped block that was compressing my epoxy-injected delam on the bottom inboard side of the wing. I then cleaned up and sanded away the excess epoxy.

And grabbed this shot showing that what was a delam “bubble” is now a repaired delam depression.

After which, I spent a few minutes whipping up some micro/West 410 and filling in the delam repair depression.  Tomorrow I’ll sand it and epoxy wipe the repair area.

Also, tomorrow should prove to be quite the busy day as I plan to sand down the epoxy wiped left wing bottom outboard wing, bottom leading edge, inside winglet and winglet intersection fairing.

In addition, Guy is coming over tomorrow to help me move the left wing off the wing dolly and onto saw horses under the carport. We’ll then remove the right wing and put it on the elevated wing dolly (inverted) so I can foam, glass, micro and epoxy wipe the right bottom outboard wing, bottom leading edge, inside winglet and winglet intersection fairing… a repeat of what I just did on the left wing.

Finally, we’ll machine Guy’s main gear axle spacers and plasma cut his main gear heat shields.

Moving forward!

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