I'm building a little hexapod, just for fun. It uses 3 tiny 3g servo's (from ebay). all the legs are constructed using the inside of terminal blocks. For making a link between 2 of them you can easily cut off the head of a screw.
I used double sided tape to put everything together. tough I still needed one tire-wrap.
everything is placed onto a 4,8 volt accu pack, making the body.
I will ad a PIC micro-controller, probably a 16f628A. For obstacle avoidance I will add 2 IR leds and an TSOP 1738 infrared receiver.
Next to my 2 more bigger robots i liked to have a smaller robot wandering my desk. Hope you like it..
I find that the mini servos are holding up exceptionally well ( if a little greedy on power) and it weighs quite a it more than 160g, so I don’t think you’ll have a problem .
Curently mine operates from signals picked up from an old TV remote . I was toying with mounting an old devantech sonar to it, but haven’t tried it out yet - I’d be interested to know how you get on.
I’ve recently been doing some cosmetic stuff on mine to make it more Bug-ish and intend to post some more video soon, as it’s now learned to boogie a bit.
I did got that metal wire for free once. It’ isn’t electrical wire but more rigid. like coat hangers or something. or a nail. I just measured it’s 2 mm thickness (not mm2).
Stills are good for a first peek but we need moving pictures ;-)))