Here is another engine model that makes a great gift for engineers in your life. The WP-85 Turbojet Engine Model has a 3D printed design. It has about 100 pieces and can be assembled easily. This is a 1:3 scale model.
More gadgets like this: here
What’s neat about this model is you can see it working through its half-section structure. It has a footprint of 36*12*14cm.
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