Shape-changing material, 3d printer with screen of hot melt adhesive release cells rotating around its axis

 Shape-changing material, 3d printer with screen of hot melt adhesive release cells rotating around its axis.It is a screen with glue release cells and magnet valve collapsing and opening.and it rotates around its own axis. The circle is a 3d block.Where is a 3d dot, the glue release box will open to release the glue. Print the inner and outer layers at the same time.Changing the shape, it melts and reprints. 3 boxes of different colors release glue more or less according to the mixing ratio. According to the ratio but the total is still equal to one full-size dot so that printing is not missing.

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