1. Assemble in your groups. 2. Using SolidWorks create a spinning coin, suited for FDM UprintPlus/ Robo 3D R1. Import the Coin_Pattern.

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1 MEEN 3349 Fundamentals of Manufacturing Lab 3D Printing Lab (2 week lab) 1. Assemble in your groups. 2. Using SolidWorks create a spinning coin, suited for FDM UprintPlus/ Robo 3D R1. Import the Coin_Pattern.igs file into SW and modify. The maximum diameter of each coin is 1.75 inches. The minimum thickness/ diameter of any 3D printed part is The second item with be a 25 mm box that will be printed flat and will be folded up into a box. Please see the pictures that will be shown. The box sides will be 2 mm thick, and will have notches so that the box sides connect/snap to each other. The flexible TPU connecting each side to the bottom can be 1 to 1.5 mm thick. There should be text or graphics on the outside of the box. 4. For the coin, one side will be the Javelina and TAMUK, the other side must have Mechanical & Industrial Engineering around the outside, and have something engineering related in the center. The box only needs lettering/designs on one side. We reserve the right to refuse any pornographic or offensive symbols, etc. 5. There should be a gap of between the inner and outer coin. A pin connected to the inner coin will rotate in a hole in the outer ring. The minimum pin diameter is Place a fillet where the pin joins the inner coin. All lettering and raised detail should be high. 6. The inner and outer coin thicknesses may not be the same. Make them as thin as reasonably possible to save on material costs, but don t make them so thin that they will break. 7. Double check the clearance between all moving parts. The clearance between Uprinted moving parts is to be no smaller than The minimum clearance of any Connex 3d printed part is Once the origami box is generated with acceptable compliant hinges and text/graphics, separate into two separate part files, one for the TPU hinges and the other for the bottom and sides. 9. Things to consider: How to make the text clearer? Make larger, use Century Schoolbook Font, add circles/lines above & below text. How do you make sure all parts are connected? Add fillets How to clean? Make the pivot holes extend to the outside. How to keep lettering from coming off? Embed partway, use fillets. How can you save material? add holes or make thinner. Is thicker always better? What is the minimum height of a single layer from the Uprint or Robo? Grading and extra credit will be based on how little model/build material is used, less material = less time. 11. Before the second week lab, 8 files (4 CAD, and 3 STL) to Patrick/Velda. Name them Teamxxx_UPrint_coin.sldprt, Teamxxx_UPrint_coin.stl, teamxxx_origami_box.asm, teamxxx_ origami_box_hinges.sldprt, teamxxx_origami_box_body.sldprt, teamxxx_ origami_box_hinges.stl, teamxxx_ origami_box_body.stl. In other words, 1 pair of Part and STL files for the Uprint coin and 1 assembly and 2 pairs of Part and STL files for Origami Box. Please make sure all are ready to be printed at the beginning of the 2 nd week. 12. On the second week, after having Patrick/Velda check your part, create a refined stl file of your assembly. Please read the section below on exporting an *.stl of an assembly. (Different STL instructions per different 3D Printers). After approval, your final SolidWorks part and assembly files, and.stl files (no *.rar files) to Patrick/Velda. Be sure to include team ID and contact phone number. 13. We will print all coins of each type all at once. 14. Check all moving parts of your assembly. (If your part works after removing from the bath but seizes up later this is an indication that all the support material has not dissolved out.) 15. After parts are printed and cleaned take pictures and document results in the lab report. Be sure to include screenshots of your CAD and do a side-by-side comparison of features between what was printed out and what the CAD program showed. (i.e. deformation of the parts, poor surface finish) The lab report will be due after the 2 nd week s work, at the beginning of the next lab. Velda Soydas, velda_basak.soydas@students.tamuk.edu, Qian (Patrick) Ma, qian.ma@students.tamuk.edu

2 See coin design notes and SolidWorks tips attached. Uprint Coin Dimensions Connex Coin Dimensions

3 Import Coin Pattern.IGS File into SolidWorks Modify to become Rotating Souvenir with Uprint Tolerances & ME/IE Design Modify for Connex Tolerances Slice into body and face components for Multi- Material 3D Printing 1. Uprint Coin Part File 2. Uprint Coin STL File 3. Connex Coin Body Part File 4. Connex Coin Face Part File 5. Connex Coin Body STL File 6. Connex Coin Face STL File Below is a simple tutorial on how to create part, define a simple mate between parts and steps to export an stl with

4 SolidWorks. How to create simple extruded sections Open Solidworks 1. Select New Part 2. Select Sketch Tab and Sketch Option. 3. Select plane to create profile 4. Draw profile of 3d object 5. Select features tab and Extruded Boss/Base option. 6. Specify direction of extrusion and thickness dimension 7. To create another section on top of existing geometry select sketch tab and sketch option and choose plane where new sketch will be made. 8. Draw profile of new section and repeat step 6 when complete. 9. When finished with drawing save and create a new part. Illustration 1: Create New Part Illustration 2: Create Sketch Step 1 Illustration 3: Creating Sketch step 2

5 Illustration 4: Extrusion choosing direction and thickness Defining a Simple Mate Command 1. Create a new assembly. 2. The Insert Component wizard should appear, browse to open the file that contains your assembly s first part. The first part that is imported will be fixed so it is good practice to import your biggest part first. 3. Drag the curser over the design widow and your part should appear. Left click to insert the part. 4. Click browse to insert the next part and click on an area on the design screen. Click on the green check to close the wizard. 5. Click the Mate Command, next click on surfaces of the parts you wish to mate. For this example we will click on the outside cylindrical surface of the piston and the inner cylindrical surface of the engine block to create a concentric mate or axial mate.

6 6. If satisfied click on the green check on the small dialog box that has appeared. The same procedure is used if defining a planer mate. Exporting Assembly to one STL file 1. Click Save As 2. Click Save as Type and select STL(*.stl) from list 3. Click Options located beneath Save as Type option. 4. Select option Save all components of an assembly in a single file. Final screen should look similar to figure. Illustration 5: Exporting Uprint STL file Illustration 6: Exporting Connex 500 STL file