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SpiderBot (Hexapod)

by mind Jan 17, 2010
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You said you were uploading code, did you ever? can you? please ;-P

What servo motor you use?

Hi, I've just started building a quadruped and have a couple of questions maybe you can help with?

Did you use a shield of any kind or are the servo's plug direct to the arduino?

and how did you get the movments smooth because mine just stomp's around with no grace what so ever,

Thanks, Mash

I calculate each position in each timeFrame (~17frames per sec) for each servo - this delivers smooth movment. This you can do with animation data (interpolating) or with inverse kinematic results.

Hi, I use a hand made shield for the Arduino Mega. I took a normal perfboard and used a wiring pen to make all needed controll connections - (wiring-pen http://radionics.rs-online.com/web/1054626.html)http://radionics.rs-online.com... - its a bit of soldering work but works fine in the end

any hints on how to work with mega servo shield? thanks.

Hi - I made my own shield by using a wiring-pen and a prefboard. workes fine in the end.

Mind sei un grandissimo, ho scaricato il file in dxf, prover
ò a realizzare i dwg con le misure dei servi che ho.
Poi se vorrai, vorrei vedere lo schema elettrico e come programmare l'arduino per farlo muovere.
grazie e saluti
la mia mail è:

Hi guy. Excluding servos, what are others elements ? Thanks.

laserd wood, cutted thread rods,a lot of nuts, one arduino mega, a soldered shield to attache servos to the arduino

next project on reprap. you should also use digital servos since you can program the power range directly into the servo. otherwise bearings will help with wear and your gonna need lipo for the weight, i doubt this thing will handle nicad weight/power density.

Nice design. The arms and "shoulders" have two plates, what did you use as bearings opposite the servos

Thanx ^^ Now there are no real bearings. I used M2 hex-head screws long enough to reach into the sligthly bigger lazored "bearing" hole. I should upload further photos with that detail.

Real bearings should be good.

I like the design, and have realy been planning to design a printable version one of these days

Yes, would be cool to see a printed version ^^