Review of Construct & Create's Hydraulic Cyborg Hand
By Dr Jennifer Martay PE, Course Leader for Medical Engineering at Anglia Ruskin University
I am interested in Biomechanics and was recently working on a 3D printed robotic hand and arm.
Naturally, when I saw this hydraulic hand, I had to buy it to give it a try!
What did I think about it? In short, it is great! For more details, keep reading!
This kit is incredibly well-organized. There is a user manual and multiple sheets of parts (don't take the parts out yet!).
The manual is refreshingly clear and easy to read and understand. Each step has a picture, and each piece you need is labelled. The label tells you which sheet and which part on the sheet you need (ie, D8=Sheet D, Part 8).
There are even pictures of common errors to help you navigate tricky assemblies!
Step 1: Constructing the Palm
The build makes intuitive sense. You start with the palm. The different parts easily click together. The resulting levers are fun to work with.
Step 2: Constructing the Fingers
Next, you make the first finger, which you repeat with slight variations 3 times. Each finger has pads around the side to make it easier to later pick up objects.
Step 3: Assembling the Finger Unit
The 3 fingers are then assembled into the Fingers Unit, seen below. At this point, you can manually move each finger lever independently - which makes it look a bit like a spider!
Step 4: Adding the Hydraulics
The next step is assembling the different units and putting in the hydraulics. I expected the hydraulics to be difficult and messy so put this final step off for a few days.
It was a needless worry, however. The instructions clearly explained how to install the hydraulics, and I didn't make a mess!
Step 5: Putting it all together!
A video showing the assembled hand moving is below.