Hey everybody, its been awhile since I built a bot, and I'm back to humanoids again lol. This is a cheap 15 DOF robot kit that I found on ebay. All the kit included was powdercoated aluminum brackets, screws, and those awesome aluminum servo horns. No instructions. So, I kinda built it my own way, with a layout similar to JD. I used MG995 servos because theyre cheap, metal geared, and (supposedly) 208 oz/in of torque. only the head servo gets its power from the EZ-B, all the rest get power from a Castle Creations 10 amp regulator. It's not enough. From what I read, these servos draw 2 amps each...gonna add more regulators later. Ok, enough chit chat, watch the video and lookit the pics!
By Kenny Storm
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what brand is the robot?
This is the kit I bought; it was just brackets, screws and servo horns, no servos. No instructions either, just the picture. I arranged it how I wanted instead:) kinda makes him one-of-a-kind:) www.ebay.com/itm/15DOF-Biped-Robot-Educational-Robot-Mount-Kit-Servo-Bracket-Ball-Bearing-e-/281165781329?pt=LH_DefaultDomain_0&hash=item4176c95951
And these are the servos I used.
www.ebay.com/itm/MG995-Metal-Gear-High-Torque-Servo-for-HPI-XL-RC-Boat-Car-Helicopter-/191007022671?pt=Radio_Control_Parts_Accessories&hash=item2c78e7de4f
In order to drive all those servos, I have a 7.4volt 1600milliamp hour lithium polymer battery. The servos can draw up to 2 amps each, (up to 30 amps total)which is too much current for the ez-b. I have modified my ez-b in a way that voids my warranty. I scratched the ext_power trace off the underside of the board and ran external power wires from the ez-b's power connector. I can't stress enough that you can destroy your ez-b if this mod isn't done correctly. The ez-b still has its fuse, but the rest of the servos are getting the full unregulated and unfused power of the battery. I keep a fire extinguisher nearby lol.
wow you design the robot.thats cool. +grippers.
atleast you can use your robot.my bioloid chutts off in 15 min,especially the hip servo's
and i dont understand the Y x z INVERSE KINMATICS blush
do you know the jo-zero robot?
That Jo-zero robot is pretty cool lookin. It seems that they're pretty hard to find though. Bioloid is a good robot too, way better than mine. I bet you'll be able to use a ezbv4 in yours:)
on sale
also to find on robi robot page as kit.jo-zero type2
.@Kenny Are You Using AutoPosition FoR Your Movements? I Too Love The Mobile App. It's Fun To Show AND Impresses Everyone
Everyone I Show It To .
@Antron007 yup, its entirely the autopositioner and one init script. I've shown this robot to a lot of people, they're always impressed:) with the phone, its a total game changer:)
Game changer. I couldn't agree more. Sorry for the last post. I was using my phone on lunch break and the forum input acts funny in the Android browser.
Speaking of auto position, I'm not sure if this is possible but.... I know you can have it set up to move the servo while adjusting (writing new values to) it but, can it, because it would be super cool if it did, read the position of the servos?
Purpose: Make a frame, Release the servos, Manually re-position the robot, Make new frame.
You probably couldn't get too stingy with the frames. I would expect erratic behavior if you try too move to large a distance with just 2 frames but, I think it would make the positioning process go by a bit quicker. And what would be EZ-er than that? (@DJSure
)
Anyway Kenny, robots like yours are what really showed me I could affordably move from Transformers to making robots. I still collect them mind you, now, I just eventually will build one. I love that yours is EZ Powered.