I am new to model airplanes and have a question regarding building the model. what happens if your cutting out a servo hole lets say and you mess up and ruin the wing. Now what do you have to buy a whole other kit again?

You ruined a wing by cutting out a servo hole? Or do you "know a guy....who ruined the wing when cutting out the servo hole"

Some manufacturers offer individual replacement parts, it is a trainer and bound to be damaged after all. What plane is it? And what exactly happened? I can't imagine it being "ruined"....unless you cut it out with a chainsaw

No, you just repair the damage and continue on.

As Cold_reboot says, you're initial evaluation of the situation may be a little worse than what reality is. Most often things like this can easily be repaired. Tell us what the plane is and if possible post a picture of what happens. By doing this we may be able to help you come up with a way of fixing it.

Ken

If it is a balsa built up wing you can just cut new peices of similiar type wood and glue them back in the oversized hole you cut and re-cut the servo hole again to the correct size. If its a foam core wing you could probably glue in a peice of hardwood where the servo mounting plates are and screw the servo into the hardwood. In other words, no, you dont need to buy a new wing kit for what your wanting to do.

This is not an actual situation i am facing I am just wondering when it cane time around for me to start cutting holes in my plane. I'm new at this stuff.

A good rule to follow is, read the instructions thoroughly, don't do anything until you understand what you want, and need to do, and then like the old saying goes, measure twice, and cut once.
I'm not a math whizz, so ............ I have a large stock of balsa to make replacement parts.

G'day

As someone has already said. Take it slowly. Make sure you know what you are going to do.

A TIP. You will often need to cut holes in the covering and also remove parts of the covering so you can apply adhesive. One neat way to do this without using a knife is to use a small pointed soldering iron set on a low to moderate heat. You can use the tip of the soldering iron like a hot knife. It will cut through the covering (use a steel ruler if you need to keep it straight) but will not cut through the balsa. Wipe the tip of the iron after while it is still hot with a damp rag or similar to remove the plastic residue and re-tin the iron with solder. Also works really well to open up pre drilled holes that are covered in covering material.

Better still are soldering iron with available knife point tips.

Weller has several that can accept standard hobby blades. These are wonderful for cutting through covering without affecting the underlying balsa at all.

Just measure it twice and cut it once........

Don't worry too much, this hobby is fun all the way!

You will damage parts,..........so what?............We all do..........Fix it and go flying.

You will crash your plane,..........so what?............We all do.........Fix it and go flying.

Enjoy!