The following videos shows how Gunpla is made. It is really interesting to see the men and the machines behind the wonderful hobby that is Gunpla.
This one is an older video, although it’s a very awesome video not only showing behind the scenes but also adding clever sound effects as background music that really catches the tone.
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This one is more of a documentary type. Very informative.
This one is of high quality, just a more recent promotional video upload by gundaminfo channel on youtube. Its also nice to see Bandai people wearing uniforms of similar fashion as in the ones wore by military personnel through out the gundam series.