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Topic: Super Cheap 3D printed 12 DOF legs - Mega 2560  (Read 26 times) previous topic - next topic

Today at 12:00 am Last Edit: Today at 12:03 am by danphobic
Here's some 3D printed legs I am working on. Shame I can't embed the youtube vid, but here is the link:
https://www.youtube.com/watch?v=AnKWSwx22Us&feature=youtu.be

I'm trying to avoid using servos and all pre-made code/parts/systems etc as I am trying to build a much lower cost system for robotics. I believe that the current obsession with the most expensive servos and controllers is a problem. Robotics shouldn't just be for 40+ IT professional blokes.

These legs with the motors, drivers, rotary encoder sensors and Mega 2560 (clone) comes in at around £30.

 As you can see, it's in the very early stages. I am basically trying to make a complex biped similar to NAO, Darwin, etc, for below £100. I reckon it's possible for £60.

I've written an arduino code that remember positions and recalls them when a number is entered into the serial, but now I need to write one that replays those positions over in sequences so I can form complex movements.

Will post some updates when I've got it walking!

Let me know what you think!

#1
Today at 12:16 am Last Edit: Today at 12:17 am by danphobic
I should add, the 3D printed parts were designed in the 2008 free version of Google Sketchup, which is unfortunately no longer free. But luckily I still have it installed on my old macbook! With a little practice you can pretty much do everything you need interms of 3D printing.

I should also add, that whilst I'm using a clone Mega 2560 for this project I did buy the official Uno when learning bout arduino.

 The parts were printed on the Velleman K8200 3d printer. The K8200, that's another story, it took me a whole weekend to build!!! But soooo worth it. I waited until maplins were offering it for £450 and snapped it up. I can see places on the internet offering for £400. Maplins now does it for £600. Feeling smug!!!


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