The prototype of the upcoming HMM Salamander was finally revealed at the All Japan Model Hobby Show! A stream showing off all of the articulation was also held a couple weeks ago. During the stream they teased the recently announced HMM Molga (posted somewhere below). I'd also recommend people not be too terribly concerned about how loose the parts look in the video. This has been the case for all of the 3d printed prototypes shown off on stream, but the final versions have been more solid.

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