One of my longer term goals is to make a Rocket Raccoon cosplay to go with my friends' Guardians of the Galaxy group at some point in the future. As none of us are tall or gangly enough to cosplay Groot without some serious stilt work; I'm wanting to make a little Groot in a pot to put in a backpack that I can carry around.
I have some experiencing in prop making and I'm confident I can comfortably make all the cosmetic details, such as realistic soil and bark, as well as keeping it light to carry (as I am disabled), but I've been doing some research as to what type of motor would give the best kind of fluid movement of dance.
I'll be getting some circuiting practice in with remaking my Widow's Bites for my Black Widow costume (basic LED lights, maybe a small on/off flicker sequence) but I'd like to be thinking about this as a side project to keep me going over the winter months.
Any suggestions as the best components to use?
I understand I obviously won't be able to get the same motions with a single motor, but a rotating swivel would be great, then I can just make the upper half pliable for extra movement.
That looks absolutely perfect, if a little intimidating to a complete newcomer to controller boards! I'm hoping to grab some books from the library at some point to give myself a little crash course. Do you recommend Pololu for purchasing servos generally speaking? Any you think would work best for this project?
For servos I always go to Servocity.com- they have the best pricing on Hitec servos, which is what I usually use since they have a really good performance/price ratio. The exact model servo you use will depend on how strong it needs to be, how much room you have and how you want to power it. I'm assuming it will be battery powered?
It operates over a wide voltage range and has dual ball bearings and metal gears. Digital servos do draw a bit more power but the extra torque and programmable features are worth it. You might also check out the HS-5496MH as it's also a good buy.
Both of these servos can operate at 7.4V so you can use a 7.2V battery pack to power both the servo and the controller board. Pololu makes a small inexpensive 5V switching regulator that you use to drop the pack voltage to 5V to provide power the controller board.