Development of Solution(Right click & press Print or click File
& Save As)
First of all pick out all the best things in your ideas section and try to use as many as you can. The examiner is looking for final solutions that have been modified and improved from the ideas stage. The last thing they want to see is a copy of one of the previous ideas just drawn a bit more neatly.
Combine ideas to get the final solution better. Ask for other people's opinion. Refine measurements. Show what you believe to be the best ways of making and above all do a working drawing (Unit 2, module 2D). It should be possible for another person to take your design at this stage and make it after looking at all the drawings. Can they?
For all development drawings there should be clear explanations and carefully shown details so that an examiner can follow it. Why not use a computer design package, most centres have them. It just shows one more of your skills.
This is the time to make a model. These can be made from a variety of materials but balsa is usually pretty good. Cardboard is another option as is plastic. A model needs to be to scale usually. If your idea is 500mm X 400mm X 200mm a good scale might be one fifth (this would end up as 100 X 80 X 40). It doesn't matter that it is a small version it is in the right proportions and this gives you a clear idea what the final job will look like. Smaller work can be made to size. The model does not have any joints, it is merely stuck together. You only put fine details on the real thing. Photograph your model (in case it gets lost or broken) so you have evidence to put in your project.
As development progresses you may need to make modifications, perhaps you realise something won't work, or the centre runs out of a particular material. Don't panic! Providing you explain this in a later stage (evaluation) you will not lose marks (just the opposite probably). Do make sure you note everything down, not neatly, just so that you don't forget anything when you come to write your evaluation.
By this stage you should know how big everything is going to be, what it is made of, approximately how much it will cost, you should have a list of any components you intend to buy (e.g. castors, handles) and you are now ready for the next stage.
(Look in the mini project for a working drawing).