Development Kit Robot

Nink

Canada
robot video thumbnail

Trying to find the optimum solution for a robot that uses all the pieces in the development kit.

I am leaning towards a Fork of Zowi / Bob / Otto, the little open source creative commons (supports commercial license) biped robot. It has 4 servo's on the legs and there are some forks that have servo's for arms. What it lacks is a decent brain as it is arduino based so it can only do basic moves so I think the EZB would add a lot of value.

I printed a Zowi off and it looks like it is fairly close to what is needed.

Logic is use the existing HDD servo's for legs (2 Servos for feet and 2 for legs). They fit perfectly into the Zowi legs.
Use the 2 full rotation servo's for arms and add the camera and distance sensor.

Looks like the only major change will be the chassis design so it can fit the top of the EZB V4 and create some arms but the legs are pretty good and fit servos and the battery holder fits one of my 2S lipos.

User-inserted image

By — Last update

ARC Pro

Upgrade to ARC Pro

Harnessing the power of ARC Pro, your robot can be more than just a simple automated machine.

PRO
Belgium
#18  

nink

pre order means if the maker has enough clients to make the robot and to, start the assemble line.if your lucky you have a robot in maybe a year. dont contribute on stuff like indiego.its a rip off.

#19  

@Nink Since you built the 3D printed version and used EZB HDD servos, could you look at the retail version specs and figure out if EZB servos would fit?

Thanks, Frank

#20  

@Nink Thanks for sharing the info on your printed as well as the retail version of the dancing robot. My grandkids got so excited and I just had to see if I could build one completly out of EZ-Robot parts

User-inserted image

Using JD bare project as a base, create a Cubee robot using only EZ-Robot parts. I think this approach would help in STEM education as standard EZ-Robot parts were used. I used @DJ tip on AutoPosition to create dance moves

User-inserted image

Here is the standard layout of JD servos

The only servos used from the JD Cubee build are: D12, D16 - Hip joints (replaced with rotation servos) D14, D18- ankle joints

The goal is to edit the frames and actions in the JD AutoPosition control to create the desired dance moves

Optional Try using standard JD feet as the ankle joints. The feet would provide great support but add an extra servo(there are 2 servos in each JD foot) that could also be used to lift a leg (D14, D18)

When I edited the AutoPosition control to add in my new dance moves, I was not able to get the servos to respond to the frames or actions. I’m not sure if this is what fixed it, but since I was only using 4 servos out of the 18 in the JD bare project, I wondered if the frame was trying to communicate with all 18 servos

User-inserted image

So, I assigned all unused servos to NA. My frames and actions are now working, but I’m unsure this is what fixed it.

I only built 2 Actions; Ankle Flex and Twist. As you will see in the video, I have no rhythm or style but this is just a proof of conceptthe exercise is left to the student

One feature this design has over the original Cubee is the standard voice recognition built into the ARC. My granddaughter nicknamed the robot floppy guy because he was failing all over the place with standard JD Actions.

Here is the video

If anyone is interested, I can post the project

Frank

PRO
Canada
#21  

Nice work. Think his feet may need to be a little smaller to get him to walk. This could be a great low cost entry level bot for DJ to add to his collection.

#22  

@Nink You are right about the big feet!

I was just worried about him tipping over on aggressive moves.

Since the JD body has built in arm servos, one could also add arms.

To keep the cost down for an entry level robot, DJ could remove those servos.

Thanks again for the inspiration on this new robot, my granddaughter loves it.

Frank

#23  

@Nink Changed to smaller feet and more moves

Regards, Frank

PRO
Canada
#24  

Way 2 much fun. I am patiently waiting for my Black Friday special to arrive and when it does I will play catch-up. Love it.