invertmast

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The plate of flap well ribs.







And here is one of the 36 held in place to check the fit.

invertmast

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The bottom center section was finished along with the servo hatch frame. The rear wing spar was also capped with some G10.





Then the 3D flap well ribs were started to be put on.








And then all of them were done.





The upper wing skins were recessed and the ply skin over the flap glued on.





I would of done the other side as well, but i printed a whole bunch of left side well ribs and no right side ones. Oops.

invertmast

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The upper flap well skins are done on both sides.







And here is a shot looking down the Wing Te showing the kink... Unfortunately, its about 20" to far inboard from where it actually is. So because of that, i will probably end up redrawing the wing in CAD and changing the construction method a bit and building a new wing at some point. I'll probably do that for the competition model though and make this one a weekend warrior.

invertmast

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Todays project was getting the wing to aft fuselage fairing built on the wing. The fuse bulkhead at the wing TE was about 1/4" to low so i had to build up the area with an additional bulkhead. Then because that area blends into the wing fillets, the sheeting had to be removed to make that transition smoothly. It wasnt hard, but was time consuming taking up about 4 hours. Now that it is all done, the final outcome looks pretty good. Some filler and sanding to fill out a few lowspots and she'll be right!








Then i put it outside so i could blow about 1/2" of dust out of the shop.










She is BIG!

Chris Nicastro

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Nice use of printed parts!

vertical grimmace

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Yah, the printed parts were a great idea in that area. Much better than stock.

invertmast

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The LE wing to fuselage fairing was built.



at this point, the vast majority of the building is done. The fuselage only needs to have the wing saddle to wing fit tightened up, the open areas covered and then some final filling and sanding and she will be ready for glass and detailing.

The wings need servo and landing gear mounts done, leading edge and wing tips shaped and they are ready for glass.

Im going to focus on getting the flight control parts drawn in Solidworks and all those files prepper for the laser cutter so when i get back home from texas they are are ready to be assembled and all this other stuff done

my plan is to have the complete airframe done by the end of Feb. And ready to mold the 2nd to 3rd week of Feb. And first parts going out by mid march.

invertmast

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I took some time today to fill in all the open areas around the fuse and G10 cap the stab roots.













I also applied filler where it was necessary.







At this point the fuselage is essentially ready for finish sanding and glassing. The only thing left to do is tighten up the fit of the Le portion of the wing saddle to the wing.


I also started figuring out the mounts for the main landing gear. Here is a shot of the 3D printed assembly on the wing panel. I need to print a rim and tire in order to get the mount figured out.

invertmast

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The fuselage is about 80% glassed at this point. Later tonight ill pull the peel ply off the right side of the fuse and finish the bottom side and do the gun hood opening.

invertmast

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The fuselage is completely glassed and the primer and body filler supplies have been ordered... Time to finish the cowl plug and start work on the canopy frames i guess.





I also printed the plug for the static prop blade:

invertmast

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The parts for the canopy fairing were cut out and pinned in place on the fuse for shaping:







Then it was all removed and glued together. At this point i need to decide if i am going to so my own canopy plug and mold, or use a commercially available one.

JGrc

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Hey Thomas, great progress! I like the propeller blade, you could have saved me 3 nights of work!

JoseG.

PS: My 152 flew today, maiden flight with no issues! pics will follow on my post.

Eddie P

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Those printed interior flap bay parts look amazing - what is the weight difference between wood and those plastic parts?

invertmast

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The plastic parts are like 10-15 grams each. But considering they are ready for paint, any weight penalty (which i doubt there is any) is worth the extra bit of lack of work.

ticketec

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Very nice work there Thomas!

Love be the printed parts and how you are using them mate!

quietly watching cos I'm still too big an Anton fan to like 152's

thanks

dave

invertmast

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First coat of primer in the fuse. Ill break out the orbital sander and sand it down tomorrow and then another coat of primer.

invertmast

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Yea i hear ya..... Im quietly thinking of a 40-60% FW-190A or D at some point..... Granted if its 60%, it'll be one i put strap my butt into.

vertical grimmace

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Are you gonna do the panel lines for the plug?

invertmast

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Panel lines, hatches, screws, rivets, the whole shebang. Im debating on if it will be done with lithoplate currently.

invertmast

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First tire mold half was done when i work up this morning....





I started the second half at the same time... Unfortunately 10hrs into the 15hr print, my computer decided to shut down for no apparent reason, so that print got trashed.


While that was printing, i lofted up the canopy, so i decided to print that instead.

invertmast

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Yesterday got a second coat of primer on the fuse and one coat of primer on the cowl and gunhood plugs. 2 1/2 hours later today and everything is sanded down and ready for glazing compound (pinholes) and body filler (low spots and flat spots).

vertical grimmace

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Looking good invert. I am right there with you. Priming and sanding this weekend. Finally warmed up here some. What do you use for body filler? I have some low spots I need to address in my center section.

invertmast

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I use Evercoat Easy Sand. Most body supply shops dont carry it though, ao i either get it online or amazon.

vertical grimmace

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Thanks Thomas. I will look for it. I am overall pretty pleased with how flat everything is though, so I am not looking at a lot of work. Although, we shall see on the fuselage.

invertmast

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Theres a few flat spots on my fuse that shouldnt be, but overall im pleased. Afterall, its not like they were spending weeks making round panels perfectly round and smooth.