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The cube isn't small, its very spacious compared to the 3 inch cube I'm currently using to build my fleaweights. :P
And most spektrum and orange receivers will take a fully charged 2s lipo. But the small servos don't like it so much. You can get a 5v or 6v regulator from eBay from pennies though.
A linear regulator is very cheap, but doesn't work very well with 2s lipo, needs a big diference between input and out but. A ubec is good because of that, and doesn't generate so much heat. I will investigate that diodes thingy.
So, replaced the 4xAAA battery for 2 1s lipos, re-arranged the components layout and the result was a dramatic change in size.
Only 14€ to print! :shock:
I can even remove some of the holes or make them smaller.
http://i1272.photobucket.com/albums/...ps75376104.png
http://i1272.photobucket.com/albums/...ps30a0bddd.png
http://i1272.photobucket.com/albums/...ps82a59214.png
http://i1272.photobucket.com/albums/...psf42db3ec.png
All parts from HobbyKing (excluding TX/RX) only cost 30€ including shipping.
http://i1272.photobucket.com/albums/...ps66df2a2b.png
Looks awesome, what wheels are you planning to use?
Well done for shrinking your ant.
I use a regulator on a pair of 120 mAh 2s lipo with several of my robots. It works fine for me.
http://i1213.photobucket.com/albums/...ntsexposed.jpg
Are you intending to have your kit assembled by the users or are you going to give it to the users fully assembled?
Good luck with it all.
The kit is just and idea, or a dream...
For now i want to make a ant (or two) for myself, but one that can be sold as a kit if i can get people interested in the hobby.
I will go with the voltage regulator then much smaller, cheaper and lighter.
Current pics of the robot :
http://i1272.photobucket.com/albums/...ps96b4b2d0.png
http://i1272.photobucket.com/albums/...pse5415cf5.png
http://i1272.photobucket.com/albums/...psb3dd7e25.png
Chassis and arm together weight 20g (using ABS as the material on SolidWorks).
Just to let you know, for ideas maybe, have a look at these: http://www.botbitz.com/index.php?rou...&product_id=73