Originally Posted by
Piggeh
Having just completed a BTEC Level 3 Extended diploma ensure that everything you do will fit the marking criteria, your teacher should be able to give this to you. Get yourself a copy of Fusion 360, its free for doing your CAD modeling and is quite easy to learn, lots of tutorials online. You start with a 2D sketch, then extrude and cut into more shapes. Model all your components (some models can be found online such as GRABCAD) at least roughly so you can move them around to get an idea of the shape of your robot. Look into H bridge circuits, these are essentially how you will control your motors, you don't need to make your own and I wouldn't recommend it, but you should have an understanding of how they work to show how you chose what components you did in your report. Download the FRA build rules , these will help you with things such as LiPo safety and removable links, put the file in the appendix of your report so you can refer to it in your report. If you don't want to use LiPos you can use the drill batteries, they're only 1 amphour or so but will be good enough for the project. Research all the options and justify them and you'll be good.
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