I made a tongue rig last night as I had trouble sleeping. I achieved this by deconstructing a robotic clamp I had left over from my last project and cutting one of the ends off a claw and swapping the other arm around so it runs in reverse. This means that when the tongue is driven forward to other claw arm moves in the opposite direction, by doing this the tongue rig not only sticks out but also curls up at the end. I really wanted to make this simulation all one system.. Originally I had planned to use three or for servos for this circuit but I think I can cut it down to two. I intended on adding a further micro-servo that will rock the base of the tongue rig left and right so I can get a bit of waggle going on. The top part of the rig was just taken from the prototypes I made a month or two ago so it only took an hour or so to put that together.
The next stage is to wrap the circuit in clingfilm and add the silicone shell for the tongue. I will do this before adding the micro servo so I can judge how much room I have left instead of trying to cram everything in a tiny area.
Made a tongue rig today so my robot can blow a raspberry
Posted by Carl Strathearn on Tuesday, March 31, 2015
Feelings
I am really excited to see how well this mechanism functions. It has added a whole new dimension to the mouth bringing it instantly to life.
Evaluation
I have enjoyed this session as it was interesting to make a tongue using a similar mechanism that I used to prototype with. I found it worked really well on the final model and also fitted to the reverse directional leavers very well. I cant wait to get some flesh on the mechanism as I think it will be one of the more impressive elements of the robot.
Analysis
The current situation of the project makes sense, the finer mechanics of the tongue will hopefully add depth to the model. This was examined in the literature review under the section that explores materialism and fine functioning.
Conclusion
In conclusion I found this to be a very exciting session, I really like how the tongue performs and moves under control. I think I will keep this element as R.C control and it feels really nice when operating it manually. I find myself stick out my own tongue at the same time as the model so that can only be a good thing...i guess.
Action Plan
I plan on getting some flesh on the skeleton as soon as I can. I have all the materials to do this to hand so hopefully I will have something that looks very similar to a human tongue by the end of the next session.
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