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I want to create a scene for bridging in 3D-Printers. I scaled the abutments. But I couldn't find a way to scale bridge part. I know that my explanation is not that good. For you to better understand you can check the pics.

Thanks.

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So my problem is,I don't know how to scale this part between 2 abutments.

enter image description here

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  • Create a Bezier Curve and place it on top of your 2 cubes like in the picture

enter image description here

  • Select the top-left corner adn press E to extrude it and place the new vertex in the top-right corner (use X or Y to keep it at the same height). To get right corners set the Properties > Object Data > Shape > Resolution Preview U to 1.

enter image description here

  • Keep extruding until you get a rectangular spiral (I did it quickly so it's not straight, but you get the point)

enter image description here

  • Create a rectangle curve (it has to be a curve, not a mesh!) by using a circle with resolution set to 1 or by using the addon Add Curve: Extra Objects (it's already inBlender, you just need to enable it in the User Preferences). In the spiral's Properties > Object Data > Geometry > Bevel > Object insert your rectangle and enable Fill Caps

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  • Resize your rectangle and animate the End slider

If you want your corners to be a bit rounded you can increase your Resolution Preview U, but you'll have to play quite a bit with your vetex handles

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  • $\begingroup$ But how can I animate this movement ? I'm sorry. I think my question wasn't clean :/ Just imagine like 3 printer extruder is printing this object. So after it prints abutments it's gonna print the bridge part. My question is,how can I animate the printing bridge part ? And thank you very much for your answer. $\endgroup$ – lemax Sep 9 '19 at 11:37
  • $\begingroup$ youtube.com/watch?v=wK2APNwEoSk basically I want to animate this :) $\endgroup$ – lemax Sep 9 '19 at 11:45
  • $\begingroup$ I have rewritten the answer $\endgroup$ – Tareyes Sep 9 '19 at 12:34

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