Yeah, that's the thing that is troubling me most. So far, I couldn't think of any configurations with that kind of setup that uses one motor for more than just one leg. ANyway, I'll start with making just one segment first, then if the budget is there, I'll make some more.
Just wondering, would it be better if I use servomotors instead of normal DC brushed motors? DC motors would need motor drivers, and maybe an encoder to make sure both motors run at the same speed. Servos might be easier to configure, but I heard they don't last long as rotational motors. Which should I do?
SO my questions would be:
1. I dunno what kind of sensors I should put in my robot. Currently, I'm just thinking of making it move just like its real-life counterpart, but so far I'm not sure on what kind or sensor it should have.
Yeah, that's the thing that is troubling me most. So far, I couldn't think of any configurations with that kind of setup that uses one motor for more than just one leg. ANyway, I'll start with making just one segment first, then if the budget is there, I'll make some more.
Just wondering, would it be better if I use servomotors instead of normal DC brushed motors? DC motors would need motor drivers, and maybe an encoder to make sure both motors run at the same speed. Servos might be easier to configure, but I heard they don't last long as rotational motors. Which should I do?
PS, pm me please once you get the walking part finished. I was planning on making a scorpion robot, and since they move in a similar fashion and I've never done this before, I'd like to know how much Excedrin Migraine to buy...lol
Sorry for the double post, but could you possibly do some sort of cam timing system on every other leg? I know it would be ridiculously hard, but it would be pretty frickin sweet to run the whole thing off of only two motors. What I'm talking about is something similar to the piston action in a car engine. The only thing is, if you offset the cam gear a little more, you can get a rolling effect, similar to the way a centipede walks. I hope you understand what I'm talking about.
The upside is the electrical work would be significantly easier. Simply attach a high torque motor to the end of the cam shaft and plug it in. The down side is the mechanical work would be a ***** and a half to calculate out. You would be best served building one setup that moved the one side all at once, and the other all at once, and shifting and testing from there until you got your rolling effect. There would also be no singular control over legs, so you couldn't make the thing step over items (unless you make an even more complex joint system that can support the robot's weight) but it would walk in a straight line easily enough.
.You could use a U-joint for the connection between the cam shafts, that way you still have a rigid body about the rotational axis, but can move up and down as well as left and right
can you post some reference sites where I can understand this more?
By moving the position of the top pivot up and down you will change the distance the leg moves. This can be achieved by putting a slot in the top of the leg.
Mike.
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