Biped Scout - OCMaster

[ocmaster85]

Now it’s time to showoff my progress so far…

I’m working on a Scout project, and have alot of problems with my servos that aren’t strong enough…
Thinking about buying new and stronger ones, but the money don’t hang on the trees in Denmark

Model: Biped Scout kit
Servos: Power HD 1201MG analog servos 13kg/cm @ 6v (far from enough for a Scout )
Power: 2x Turnigy 2200mAh LiPo cells
Regulator: Turigy UBEC LiPo regulator
Servo controller: SSC-32 controller
Connection: Bluesmirf rs232 bluetooth

The LiPo solution works pretty well, but the servos don’t carry the weight that good, even if they are rated at 13kg/cm @ 6v

Here some pictures of the Scout so far…

[ocmaster85]

Some more pictures in crouch position

[ocmaster85]

I had alot of problems with my servos carrying the 6DOF leg setup, so i removed one of the DOF’s in hope to get it walking, and to my big surprise it works…!!

A video of the “BRAT like” walking with the 5DOF leg setup
youtube.com/watch?v=CizhMaYkU1g

Here are some pictures…

[innerbreed]

hi. great work.
great to see another on on going scout project.

i can see how you have fitted those servos in. the bends look ok and quite nice. how did you bend them. using a vice would leave them with a nice angled bends.

i think the DOf mod looks esthetically ok but im not sure its practical. id be very interested in seeing it walk like this. you might prove me wrong. im thinking of a new design for this part so ill share with you once iv done it. bit busy at mo but ill post in in a few hours.

again nice project and great work with the power supply. 8)

[ocmaster85]

@innerbreed

hi. great work.
great to see another on on going scout project.

i can see how you have fitted those servos in. the bends look ok and quite nice. how did you bend them. using a vice would leave them with a nice angled bends.

i think the DOf mod looks esthetically ok but im not sure its practical. id be very interested in seeing it walk like this. you might prove me wrong. im thinking of a new design for this part so ill share with you once iv done it. bit busy at mo but ill post in in a few hours.

again nice project and great work with the power supply. 8)

i’ll post a video on YouTube when i get home tonight … it walks okay, but it slides the feet like a brat …

[innerbreed]

@ocmaster85

By the way, the video you requested is online youtube.com/watch?v=CizhMaYkU1g

What do you think… ?? it can walk faster if I just push the timing settings a little further…

Thanks for sharing your video. it walks great. will you be replacing the ASB-15 with something else. maybe make your own bracket that will incorporate the structure.

i should be ordering the parts needed to convert to 5DOF (first design) at the end of the month.

[sn96]

Great work so far. I have just a few questions:

Do you plan to have the scout walk on carpet or other rough surfaces? If so, then it will be important to get the feet off the ground when taking steps.

Are the braided sleeve covered wires going to be tie wrapped to the body?

It’s nice to see some biped bots for a change vs. all those hex bots.

[ocmaster85]

@SN96

Great work so far. I have just a few questions:

Do you plan to have the scout walk on carpet or other rough surfaces? If so, then it will be important to get the feet off the ground when taking steps.

**It was the plan with other surfaces, but the servos are to weak **

Are the braided sleeve covered wires going to be tie wrapped to the body?

Not totally fitted, they need to move alot with the legs

It’s nice to see some biped bots for a change vs. all those hex bots.