Building an Arduino Controlled Animatronic System - Part 5: Building the Eye Mechanism
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- Опубликовано: 4 май 2018
- In part 5 of the series, we build the eyeball animatronic mechanisms from start to finish. For this build, you’ll need the following parts:
-0.02”/0.5mm piano wire - hobbyking.com/en_us/36-piano-...
-SG92R Micro Servo x 3: www.adafruit.com/product/169
By the end, you should have a completed eyeball mechanism hooked up and ready to program!
If you have any questions, post in the comments or reach me directly on twitter @jimscuba2386
Enjoy!
Jim, You Rock !!!
Awesome ! Subbed!
Love it😄🤓❤️
If the speed of the eyeball or eyelid movement is set by the joystick programming would it be a better idea to start out with the push pull wires in the middle position of the servo arms?
Is the iris part of the eye printed to allow a glass lens?
How long was the total printing time?
Jim, great tutorial. Would it be possible to get all 3 in/out rods from 1 piece?
Builder's Mark yes. But for $0.53/apiece, I’d buy a couple just as backup.
The cut rods wind up being only 2-4” each so it should be fine if you measure correctly. :)
I just used a paper clip haha
I noticed that both eye ball chassis structures are printed out the same, where both left and right eye balls are identical. Would printing the chassis structures mirrored to each other work differently in end results or would you have to run a different program for each eye for them to move in sync.
Great question. After thinking about it, I think your eyeball movements would work just fine since both LR servos would have to still turn clockwise to look right, for example.
However I think your eyelid would get messed up. Currently, if you’re looking at the eyelid servo, it turns clockwise to close the eyelid. If you mirror that over, the servo has to turn counter clockwise to close.
This would just require a simple fix in code saying “blinkservoright = -blinkservoleft”. However since I have to write code that works for everyone, If people had mirrored versions, I could never know for sure which eye was hooked up to which set of pins. If the eyes are both identical then they can hook it up to pins 5,6,7 or 0,1,2 and they operate the same. You could imagine if they hooked the mirrored eye up to the wrong port that I assumed, the eyelids would run backwards.
So yes, you could do it, but it would require some minor code tweaks. I’m trying to keep this as “fool-proof” as possible for the purposes of the demo. :)
Hope that makes sense! Great question!
The eyes can move independently this way, if you ever want them to.
where can I find the sty file to print the parts myself?
Hi Jim,
Which 3d design software do you use or can recommend for modelling? I haven’t touched autocad in many years and not sure what currently mechanic engineers use.
I am on macOS
Thank you!
Sketch up is really user friendly. I love it.