Sling 4 Ninja

Deburred all the rudder frame parts (i.e. all but the skins), and then primed. I consistently find parts with small "issues", which is getting tiresome. Today there was this rather thick rib with no curved bends that wasn't straight: Really seems like that shouldn't be, since there's no curvature, it should've remained flat through the manufacturing process ... looks like it was abnormally bent somehow. I did some fluting to it, hopefully that'll work out OK. And then a piece that again has some abnormal bends into it: (Note the right side in the picture, not straight at all). I tried the seamer to no avail ... I also clamped it down with a block, didn't change much ... Hopefully I'll manage to get it fitting OK.

I have now completed the deburring and cleaning of the horizontal stabiliser. It went rather well. I won't document the process, as the internet does a fine job already. Some noteworthy points however: In some spots the protective film was not doing its job, leaving a white/milky surface. This is easily cleaned with isopropanol. The manufacturing seems to do a decent job of not leaving too many burrs, I run my fingers along edges and use files and other tools to remove the burrs I find, and only those: There are many other ways to deburr of course, notably sandpaper and deburring wheels, both of which I have ... so I will continue to experiment ... the files work nicely and precisely, but are maybe  a little slow. Then again, I'm not in a hurry! Ribs are also fluted! Finding ways to flute the small nose ribs without bending too much metal and create sharp edges is a little tricky, but luckily given their size, not much fluting is required anyways. Found a fe...