The idea of interchangeable heads may be interesting, but I imagine that a modification of the neck will surely be necessary (the posture of the dog’s head is higher than that of the cat)!
As for STL files, there is still work to be done to adapt to the size of Nybble and to adjust the assemblies, but I give the exclusivity to Mr. Rongzhong Li if he wishes.
Would you mind sharing some STL once all parts are aligne and finished? I would love to print those in wood-PLA to give my robot an "exchangeable" head.
You can if you want to finalize it because some dimensions are approximate, not having the actual dimensions of the electrical components and even the actual size of the head !
I tried to respect the maximum proportions having as support only photos.
The challenge in designing such heads is to allow maximal 3D viewing angles with limited faces, and how it should be assembled with geometric and functional constraints.
I have three thoughts:
The ears in your design is flexible. The ears and back of head will be assembled as two layers. Its center of gravity will determine its hanging angles. And because there's ultrasonic sensor behind the eyes, the ear will be installed on the back side of the head.
The corner of the nose is unnatural.
Whether the head's dimension will interfere with the rest of robot needs to be tested. For example, will the longer chin reduce the rotatable angle of neck's tilt angle.
The idea of interchangeable heads may be interesting, but I imagine that a modification of the neck will surely be necessary (the posture of the dog’s head is higher than that of the cat)! As for STL files, there is still work to be done to adapt to the size of Nybble and to adjust the assemblies, but I give the exclusivity to Mr. Rongzhong Li if he wishes.
Would you mind sharing some STL once all parts are aligne and finished? I would love to print those in wood-PLA to give my robot an "exchangeable" head.
Great reengineering ... I love this forum. Good job Eric!
No problem, it's even honorable for me.
You can if you want to finalize it because some dimensions are approximate, not having the actual dimensions of the electrical components and even the actual size of the head !
I tried to respect the maximum proportions having as support only photos.
With the recommended changes.
looks great!
I shortened the snout and softened the corner of the nose.
The snout over the course will reduce the possible problem of rotation of the angle of inclination of the neck.
Before:
Now :
Your opinion ?
I played a little bit with "blinder" to try to get an idea of the rendering. What do you think?