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Star Wars B2EMO appears to be a practical effect rather than CGI. A real B2EMO was featured at the recent premiers of Star Wars Andor and several influencers have posted footage on social media.
As far as I can tell this was built by the same team that built BB8 which includes Josh Lee and Matt Denton, and you can see the BB8 internal animatronics reveal from Star Wars Celebration 2016 in the Star Wars YouTube channel.
At first Star Wars B2EMO doesn’t look like anything special it’s a beatenup looking salvage Droid. During the Star Wars Andor premier however, the first thing I noticed was that it had Mecanum wheels, which makes it omnidirectional. I’ve done a few projects with standard omni wheels in my channel, but never Mecanum wheels. These wheels have little wheels around their circumference which are angled at 45 degrees. Mirrored pairs are usually installed on the robot, and depending on the combination of rotation on each wheel, the robot can move in any direction.
B2 is even more complicated than that though. Each foot can lift up and down independently, and also the whole wheelbase can extend to make it longer and presumably more stable. There are also a number of other features in the body, which can boost itself up to make the Droid taller. There are rotating parts inside the body, and the head can also move independently in multiple axes. And all of this is a real piece of engineering.

You can support me on Patreon or buy my Merchandise:
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Patreon:   / xrobots  
Merchandise: https://teespring.com/stores/jamesbr...
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Affiliate links I will get some money of you use them to sign up or buy something:
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10% off at https://www.3dfuel.com/'>https://www.3dfuel.com/ use code XROBOTS at the cart screen.
Music for your YouTube videos: http://share.epidemicsound.com/xrobots
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Other socials:
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Instagram:   / xrobotsuk  
Facebook:   / xrobotsuk  
Twitter:   / xrobotsuk  
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CAD and Code for my projects: https://github.com/XRobots

Huge thanks to my Patrons, without whom my standard of living would drastically decline. Like, inside outFarm Foods bag decline. Plus a very special shoutout to Lulzbot, Inc who keep me in LulzBot 3D printers and support me via Patreon.

HARDWARE/SOFTWARE

Below you can also find a lot of the typical tools, equipment and supplies used in my projects:

Filament from: https://www.3dfuel.com/'>https://www.3dfuel.com/
Lulzbot 3D Printers: http://bit.ly/2Sj6nil
Bearings from: https://simplybearings.co.uk/
Lincoln Electric Welder: https://bit.ly/2Rqhqos
CNC Router: https://bit.ly/2QdsNjt
Ryobi Tools: http://bit.ly/2RhArcD
Axminster Micro Lathe: http://bit.ly/2Sj6eeN
3D Printer Filament: http://bit.ly/2PdcdUu
Soldering Iron: http://bit.ly/2DrNWDR
Vectric CNC Software: http://bit.ly/2zxpZqv

Why not join my community, who are mostly made up of actual geniuses. There’s a Facebook group and everything:   / 287089964833488  

XROBOTS

Former toy designer, current YouTube maker and general robotics, electrical and mechanical engineer, I’m a fan of doing it yourself and innovation by trial and error. My channel is where I share some of my useful and notsouseful inventions, designs and maker advice. Iron Man is my goto cosplay, and 3D printing can solve most issues broken bolts, missing parts, world hunger, you name it.

XRobots is the community around my content where you can get in touch, share tips and advice, and more build FAQs, schematics and designs are also available.