ovals in Styrene??

Ok here it is.  

ww2.hdnux.com/.../628x471.jpg

On the pic, you will notice the black oval towards the winglet, that's the fuel vent.  On the model there isn't that black oval which means that I want to carve that oval out, insert something with the same size of the oval that I cut out, but half the depth of the oval that I carved out.  That would give the wing a little bit more realism.

If you cut a plastic rod on an angle you will automatically get oval pieces that may be easier to sand to final shape.

Any chance that you can post a photo of the actual vent that you are trying to replicate?

Exactly... Thin the wing half on the inner surface in the area of the vent first. Drill the oval vent second. Lastly add some sheet plastic on the inner surface of the vent to achieve the desired look.

Why would the fill piece be oval?

Making an oval opening is a simple job with files, assuming the wing isn't assembled yet.

So you want to drill an oval shaped hole into the wing, and then have a recessed oval piece filling the hole for partial thickness?

I guess I don't understand the nature of the task.

I successfully cut styrene up to .020 with a sharp pair of scissors, then sand to final shape.

Scribing styrene for any shape is a pretty good method.  You do not need to scribe very deep.  It is like glass, a clean scribe/scratch will allow you to break the plastic along the line.  Scribe, then bend- it will break fairly cleanly with only a slight amount of touch-up needed.

Hello!

Do you mean oval shaped plastic plates? Depending on how big they should be and how many do you need, you could either draw 'em on a plastic sheet, cut close to the line and then sand to shape, or you could shape a plastic rod and then cut slices off. Just two ways, there are many more, like I said - it depends. Hope it helps, have a nice day

Paweł

If you are looking to make oval pieces, I suggest cutting the amount you need in rectangles, then sand those to the proper shape. If you are looking to make oval shaped openings, use small drilled holes in the proper places, then file away excess.