Part II: Quantitative Problem (50M) Q2: A prototype of a tube with a square cross section is to be fabricated using ster

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Part Ii Quantitative Problem 50m Q2 A Prototype Of A Tube With A Square Cross Section Is To Be Fabricated Using Ster 1 (180.46 KiB) Viewed 49 times

Part II: Quantitative Problem (50M) Q2: A prototype of a tube with a square cross section is to be fabricated using stereolithography. The outside dimension of the square = 100 mm and the inside dimension = 90 mm (wall thickness 5 mm except at corners). The height of the tube (z-direction) = 80 mm. Layer thickness = 0.10 mm The diameter of the laser beam ("spot size”) = 0.25 mm, and the beam is moved across the surface of the photopolymer at a velocity of 500 mm/s. 1. Compute an estimate for the time required to build the part, if 10 s are lost each layer to lower the height of the platform that holds the part. Neglect the time for postcuring. 2 22 h 15M 2. Solve the problem except that the layer thickness = 0.40 mm. 9559,15M 3. The part in the above problem is to be fabricated using fused deposition modeling instead of stereolithography. Layer thickness is to be 0.20 mm and the width of the extrudate deposited on the surface of the part = 1.25 mm. The extruder workhead moves in the x-y plane at a speed of 150 mm/s. A delay of 10 s is experienced between each layer to reposition the workhead. Compute an estimate for the time required to build the part, 20M 100 mm W x 100 mm L x 80 mm H 674 kr Wall thickness =5mm