Where can I find (Animatronic Goofy Parts)?

There are faqs online that tell you where the parts are but here's a list:

These parts are all in Tomorrow City:

Leg = Located in the area where you raise the Notilus. Go to the crane opposite from the one near the blue-roofed temple. When you get there, you can climb it by thinning out the gears for each platform around the outside when theyve rotated the platforms flat something youre already used to. At the top, jump toward the wall and thin out the painted wall to your left. Then jump down and open the blue chest, which denotes an Goofy part, to receive Goofys leg.

Torso = Given after you defeat the Slobber

Left Leg = Located at Tomorrow City Square. When the camera pans to show you the Sky Tram line in front of the walkway youre standing on. After a few seconds, the tram will show up and you can jump out to it. Ride it to the next car to jump to that, then ride to the last car and hop down to the platform. Fight off a couple of beetleworxes and open the nearby blue crate: inside is Goofys Left Leg

Arm = Located in Space Voyage (where the big rocket is). Backtrack to the globe and thin the front of it. Jump inside and it rotates, allowing you to access a ramp. Jump back out and climb the ramp to the top, where the chest with Goofys Arm inside.

If you aren't able to find the chests, you can buy them from the store on Mean Street for 1000 E-Tickets each after you completed the main quest of Tomorrow City. Hope this helps.