Bought the wrong servos I guess

An update on this project. I had put this away for a few months while I saved enough for new servos. UPS will be delivering 22 5990tg servos tomorrow. Hopefully before I go to work, but I doubt it.
I can’t wait to finally get started on this project again!

~Mike

Got my Servos today. I don’t want to enlarge the holes in my brackets just yet so I’m going to change the hinge backs for the flat backs they came with. Now I have to go get some M2 size screws for the metal servo horns.
~Mike

pictures please?

I just got off work and am very eager to start building on my bot. I’ll post pictures when i have something together…right now, it’s just a pile of servos, screws, brackets, bearings, etc. :laughing:

Here is my bot V1.0
Motors are in place, brackets are all connected.
The only problem i am having right now is the wires for some of the lower servos are too short to allow my bot to fully stand upright.

No program written yet.

I’m trying out Kroony’s recent ankle idea.
http://img484.imageshack.us/img484/3774/sh101702sj6.jpg

That looks mega cool! Is that entirely custome built or did you build upon the LM scout? Thats fantastic 8)

Looks like the 209 chasis, with modified legs?

Kroony posted a thread about lowering the ankle up/down hinge. I borrowed that idea so the dual servo hinge is on the upper leg while the short and long C-brackets are on the lower leg. Other than that, it’s similar to the picture on the “what can I build” page with that chassis.

The only thing I need now is some way to hold it up. I was sitting here last night holding it up with one hand, setting the servo limits. My arm is still kinda sore this morning from holding hat much weight for so long. lol

~Mike

You can go to Home Depot or Lowes and buy PVC pipe and fittings and make a suspension rig to “hang” the bot via a teather.

OMG!!! 22 5990TGs? I bet you are having mega fun with those. Those are probably the best servos you can get right now in the standard size!

Your scout is beautiful and with gobs of torque, it should be no problem for you to get that thing around and balance on one leg… How are you handling power? I would probably invest in some 5-cell sub-c packs, perhaps build your own… NiMH has hit 4800+mAH sub c so probably would want to invest in some of those.

Many RC cars use LiPos if you really want to shave off some weight and still have high capacity. Careful with those though, most are assuming an application for RC cars and will sell you “7.2V” packs but when charged, it will definitely go beyond, even with a high load (RC 540-sized motors draws a crapload of current when throttled fully).

I used to give my hs645 servos 6-cell sub-c (which is equivalent to giving steroids to humans)

Keep us updated with your project… I have an idea for a humanoid biped made with SES parts that is comparable, if not stronger and more reliable, then the Kondo’s out there… I just need to get my solid works installed and model it…

I will post it once I’m finished, it’ll probably take me a couple of weeks since I’m running 2003 and not sure if the user-submitted models, which are in sw 2005, will work in it. If not, I’d have to model it…

Again, awesome scout! Keep us posted with pics and videos (via youtube?)…

:smiley:

Oh yeah, what happened with your HS475HBs? Did you return them or do you still have them? Why not buy some brackets and build a mini-hexapod, or better yet, the phoenix hexapod when it comes out? Those two hexapods are quite light weights. If you slap an IR transmitter and receiver on each one with a bot board+ssc-32 combo on each one, you can have a bunch of walkers, bipeds and multi-legs, “network.” Possibly updating each other with sensor data? Just a thought…

:stuck_out_tongue: