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Hi all,
I'd like to share a video I just took of my full size Lost in Space B9 robot that's controlled by two EZ-B controller boards. Right now they are controlling limited movement and voice response of a few motors, lights and sound files played from a Sparkfun MP3 Trigger board. Although I'm just starting with the animation and have more building on the actual robot the result (mostly thanks to the EZ Robot controller board) is shocking. Please have a look at this (4 minute) You Tube vid and enjoy.
Please excuse some Technical camera lighting and sound issues. This is the first time I'd made and posted a vid online.
EDIT 8/2/13: Just realized I have no good pictures of how my B9 will look when complete. Here's one of the actual TV robots from the 60's TZ show Lost in Space and one recent shot of where I'm at with my build over 1 1/2 year after I started. Enjoy:
Thanks, Dave Schulpius
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Tevans's Help With My R2
Great news dave!
Well, mixed results and a near disaster. You'll see the "Blooper" at the end if the first vid.
Tony, Your right. After extending my leaver to 21 inches (53.34 Centimeters), about the same length that my final arm will be, I weighted it with 3 lbs (1.36078 kilograms). I found that the paired up motors running at 24vdc wont pick up the load. It hoisted it nicely at half the length though. So looks like I need to use larger motors at least at the first joint.
Here's a couple vids of the testing:
Here's the follow-up after the blooper:
I guess the next step will be deciding on the new motors.
Whew! blush Thanks for the update vid! Glad everything survived....Leverage can be your friend or not your friend....motor shopping now with sufficient torque
150 pull linear actuator This might work, not cheap though.
If you want to pick people up Link!
Dave, I don't know if you could fit wiper motors inside the arm, but tbey might go. (They are pictured in my post on pg 22 of this thread). They are pretty strong, and they are only $20.00 a piece. Mine are not direct drive. The cables and pullys increase the torque some, but you may be able to recreate that in a straight line inside the arm. I have a picture in my head but I am at work right now. If you'd like, I can make a sketch for you this evening.
Dave, these are the motors I use for Questors drive wheels. They are rated at 212 in/lbs of torque but they are kinda heavy.
motors
To assist with @Danger's idea
Wiper motor .....and an excerpt..... " This type of motor is called a"gearhead" or "gear motor" and has the advantage of having lots of torque. My unscientific test (using one wiper motor and a torque wrench) found that at 12 volts, on high speed, the motor has 13.5 pound-feet and on low speed, has 17.5 pound-feet of torque. "