I am new to inventor and I am trying to create one of my first components having had no lessons. I have managed to create the component for a camera stableiser for my A-Level project. I need to put a hole through the flat section on the curve in the middle about 20mm from the end on the bottom that goes all the way through the material for a bolt. I have watched lots of videos and webpages and have not worked out what i need to do. I have attached the file any help would be greatly appreciated.
First off, you're doing WAY too much work here.
While I understand that you're trying to do this entirely self-taught - and I really do understand this, as that's how I got started with Inventor as well - there's no crime in getting some basic tutorials. Look for posts on here by JD Mather. Go through the tutorials in his sig line. They will REALLY help you out a lot with your basic modeling techniques. I very much recommend doing this, and then going step by step through every single one of them. (Granted, they're from an older version of Inventor, so things will look a little different, but the tools will still work pretty much the same way.)
Second, you've got tons of extra sketches that are not obviously being used for anything. Now I'm the first one to admit that I'm completely OCD when it comes to having clean geometry and no extra stuff laying around, but there is definitely a benefit - performance-wise - to minimizing the amount of extra sketches.
As far as where you want the actual hole ... can you put a scribble of some sort on the location where you want it? I'm not quite positive where you're trying to make it ...
How motivated are you to learn to do this correctly?
(I ask, because many students come here asking for help and the disappear in 2 or 3 days.)