We continue doing work from last week. Because this is second prototype so, it should better than before. We calculating every thing again in detail.
As we discuss from last week that the press button on first prototype was too hard for kids to press. Now we change it to the mini rocker switch.
We continue do the circuit inside every block till finished. But not already put any magnet.
Since the copter need to be inside so we measure and design the decorate thing for that it will not hit the wall when the motor turn on.
All the blocks is nearly finish!
Because this prototype children can see in side the block so, we design some thing to put inside the block for kids can see what happened.
The door of battery block is finished too. For this prototype we cut off the handle so that kids will not curious and try to open.
The design of plus and minus pole is changed to cartoon for children can easier matching.
Because the last propeller, the colourful flower, make very loud noise when turn on the motor switch. So, we change to this small propeller. (This is the result that is the least loud after we try many propeller design)
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