The first batch of electronics arrived. I picked them by best guessing the stuff seen in the video from ‘Tested’. I decided to go with the SG90 servos as they are dirt cheap compared to the digital metal gear servos. The only problem so far is that I don’t have any clue how to code the stuff the robot is supposed to do but time will tell. I sense it.
| Part | Amount | Price (total) |
| Teensy 3.2 | 1 | 22,50 € |
| NeoPixel (Pack of 5) | 5 | 5,35 € |
| Micro OLED breakout | 2 | 32,40 € |
| Speaker – 8Ohm, 0.5 Watt | 1 | 1,50€ |
| Amplifier (lingered in the pit for some time) | 5 | ~3,00€ |
| Total | 64,75€ |
The Rpi 2b+ I have laying around, aswell as the servos. A li-ion battery is floating somewhere as far as I can remember. Oh and I still need a Raspberry Pi Spy Camera. The advantage over the the standard go-to camera is the much smaller pcb and a smaller ribbon cable. This will add another ~30€ to the bot. Also, if I decide to go for the PowerHD servos, they would add 45€ to the pot. This is escalating quickly. Again.
Would you be willing to share the design or STL files? I have an extensive background in electronics and programming and would love to build one of these.
Yep sure. I’d love to. I just need to find the correct version and maybe we can work on this together. I’ll post the files here on my blog later.
That’d be awesome, would love to collaborate on this!
Got my servos and should have the remaining electronics in a couple of days, any luck finding the design files?
I have found 2 iterations. Already starting to forget where I stopped. I now wonder how I should share the files. It was made in Fusion360 so I can export to IGES and STEP or respectably the Fusion format. Or I could share the project files iva Fusion360 Gallery / public link. Do you use Fusion360 or Inventor?
Awesome! I should be able to use Fusion360 format.
Hi,
Just checking how much further you got with this design?
Sorry for the late reply.
It is currently on hold as I recon that the original servos would be better then the cheap 9g servos I build this thing around. Thing is these metal gear digital servos cost around 20$ each and I am not willing to spend that much money (60$) on these as I don’t know how to code the brains of the robot afterwards.
I have found cheap 5$ stepper motors which are very thin (36.3*12.4mm Ultra thin 0.9° Stepper motor DC6V 0.3A 0.04N.m). This could be an alternative but I am unsure as this would require additional stepper drivers which bloats the internal hardware too much IMHO.
If I could find cheaper metal gear digital servos with the same size and specs as in the original design I would be happy.
P.S. the guy how made this robot initially is not a big help. He created a site for you to sign up for his newsletter but it seems to be a dead end. Maybe he just wanted to collect some mail addresses 🙂 not for profit ofc 😀 😀
HI Sebastian,
I really appreciate what you have done!
I would like to collaborate as well on this project!!Could you share with me the design files?
Have you already done a prototype?
Hey! I haven’t printed a prototype or done anything to the design lately. See my above comment for the reasons. I might consider to make a new post with design files I have so far. Collaboration would be nice. Some coder would be appreciated.
Hey, This project is amazing! I am working on my own version of it too. It will be greate to collaborate and share some infos! Here is my email : at_06@ aol.com