Finally someone is selling a DIY kit of the Cubee-style robot. A $60 Arduino kit that would make a nice Picaxe robot too, too bad they don't just sell the kit without electronics: https://www.amazon.com/dp/B06ZZH8LZS
Sloth Robot
- Thread starter erco
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Get the Sloth-Bot kit for $42 if you order directly from https://www.sunfounder.com/diy-4-dof-robot-kit.html . When you create an account, they email you a 30% discount code. Free ship, plus they take Paypal. I ordered one.
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Nice erco. That's £30 with discount code. Hmmm. srfo4 and 4 sg90 is £15 so £15 for the acrylic.
Safe except the sg90 on my robot for us radar has been changed twice. Don't know why they failed and that's just a srf04 left and right.
Coding would be hard unless there's source..in c++
Safe except the sg90 on my robot for us radar has been changed twice. Don't know why they failed and that's just a srf04 left and right.
Coding would be hard unless there's source..in c++
Yep, still pricey for the kit, even after discount. Funny that you can buy the cute fully assembled Cubee robot for less: https://www.gearbest.com/rc-robot/pp_1257078.html
Looks a bit like the Otto bot. You can find him here: https://www.ottodiy.com
Also have access to the design files so you can either print your own Otto or ask someone with a 3 printer to print it for you: https://www.ottodiy.com/#build-and-learn
Also have access to the design files so you can either print your own Otto or ask someone with a 3 printer to print it for you: https://www.ottodiy.com/#build-and-learn
Thanks, that's great, steliosm!
I just saw that you are in Athens, what a great city! I ran the marathon there in 1999. I only know one other Greek roboticist, Nikos G. A very smart and enthusiastic teacher, you can find him at https://forums.parallax.com/profile/NikosG
And do you know the guys at Muse Robotics? http://www.muserobotics.com/contact.html
I just saw that you are in Athens, what a great city! I ran the marathon there in 1999. I only know one other Greek roboticist, Nikos G. A very smart and enthusiastic teacher, you can find him at https://forums.parallax.com/profile/NikosG
And do you know the guys at Muse Robotics? http://www.muserobotics.com/contact.html
The servo controller it uses is yet anotjher device to figure out. This python init..easier??? than c++
https://github.com/adafruit/Adafruit_Python_PCA9685/blob/master/Adafruit_PCA9685/PCA9685.py
https://github.com/adafruit/Adafruit_Python_PCA9685/blob/master/Adafruit_PCA9685/PCA9685.py
Actually, I don't know any of those guys. I'm more into "connected objects" rather than robots.
Sadly, there used to be a Greek robotics forum (grobot.gr) but it's now long gone. I hope now that robotics is a part of the curriculum to actually see this science field to take off in Greece.
I got two pca9685 pwm boards working https://www.youtube.com/watch?v=YtKqmKKk4gk&t=0s&list=UUwOlmqc5IB4FhvS5XKu1sLw&index=2
18 servos erco. the pca9685 board don't like not enough power for servos although it has own 5V supply and the servo supply is totally independent.
There's a set all channel command and I use scale..arduino map function but in basic to convert degrees to pulse width. This sets all 18 servos to 90 degrees.....
but with not enough power all servos go to 0 degrees.
My thought is a 8 A bridge rectifier and 7.2V li-ion,4 batterys. The bridge is 2 diodes in series twice so should drop 7.2V to 5V. I've ordered a dc-dc 8A buck converter anyway.
If you nick the init code for these boards they'd work with picaxe.
Also , you can take a wire off the pot in the servo,connect to a-d and get servo position. There's probably a 16 channel a-d i2c chip some where..it seems familiar..I might have some.
I could then teach it to walk. otherwise it's trig or tables.
It needs longer legs so less strain on servos...from first thoughts an tests.
There's a set all channel command and I use scale..arduino map function but in basic to convert degrees to pulse width. This sets all 18 servos to 90 degrees.....
but with not enough power all servos go to 0 degrees.
My thought is a 8 A bridge rectifier and 7.2V li-ion,4 batterys. The bridge is 2 diodes in series twice so should drop 7.2V to 5V. I've ordered a dc-dc 8A buck converter anyway.
If you nick the init code for these boards they'd work with picaxe.
Also , you can take a wire off the pot in the servo,connect to a-d and get servo position. There's probably a 16 channel a-d i2c chip some where..it seems familiar..I might have some.
I could then teach it to walk. otherwise it's trig or tables.
It needs longer legs so less strain on servos...from first thoughts an tests.
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That's encourageing. Converting the adc read value back to micro seconds should be easy.
The hardware side of making a walker is...the drill bit snapped and went through my thumb nail...I bought an A8 reprap i3 clone kit for £84 and will print the parts.