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Help with arm design please.
in Animatronics
Hello ,
It's been a long time I have a question. I working on a prop the is a puppet and I would like to figure out an arm mech that would give me the best range of motion. I figure I could use a pan and tilt for the for the first joint of the shoulder , SO I have up down front and back, but after that where the elbow would be i get lost should i do a cable like mech and down to the wrist do the same. I believe the org. was done with rods and a waldo but I was going to use an arduino so i can pre program it on a timer . this is just for personal use so crude is fine. I never seen something like i'm talking about being sone before. Thanks for any info.
Gary
It's been a long time I have a question. I working on a prop the is a puppet and I would like to figure out an arm mech that would give me the best range of motion. I figure I could use a pan and tilt for the for the first joint of the shoulder , SO I have up down front and back, but after that where the elbow would be i get lost should i do a cable like mech and down to the wrist do the same. I believe the org. was done with rods and a waldo but I was going to use an arduino so i can pre program it on a timer . this is just for personal use so crude is fine. I never seen something like i'm talking about being sone before. Thanks for any info.
Gary
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Comments
Cable mechs are great, since you can then put any servos in the body. That way the servos are just moving the weight of the arm, and not the weight of the arm and all the other servos/mounts/wires/etc.
One thing to keep in mind about shoulder joints is that the arm not only moves forward/backward/out, but also rotates.
/Chris