Using a 3D Printer - Using a 3D Printer The printers you will be using for this course are Flashforge Creator Pro models located in the UT Makerspace

Using a 3D Printer - Using a 3D Printer The printers you...

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Unformatted text preview: Using a 3D Printer The printers you will be using for this course are Flashforge Creator Pro models located in the UT Makerspace ETC 1.222. These machines are nearly identical to the Makerbot Replicator 2X so we will be using the Makerbot Desktop software to prepare our models for printing. The software is available to download for free at . 1. In AutoCAD create an STL file of your keychain. To do this, click the Ipro button in the upper right hand side of the screen and go to Export, CAD Format. In the save as type dropdown menu, select STL File and save. 2. Download and install the Makerbot software from the link provided above. 3. Open the Makerbot software and under devices, select Replicator 2X 4. Click add file and select the STL file of your keychain. When asked if you want to Put Object on Platform, select Move to Platform. 5. You may notice that the model looks very small. This is because STL files do not store information about units, so it is likely that the units the Makerbot software assigns the model are not the same units it was created in. To correct this, select the model and select Scale. 6. You have the option to change the x, y, or x coordinates of the part. If you change one dimension, the others will scale accordingly. You want to change the smallest dimension (Y in my case, but it may vary from user to user) to 0.25, the thickness of our part. Once that value is entered and the other dimensions are scaled, click the Inches-­‐> mm button to convert the units into inches. 7. Now click the Turn button and turn the part so that the back of the part (the largest, flat surface) is on the build platform. This will require rotating the part then clicking the Lay Flat button 8. Position the part so that it is near the middle of the build platform. If you are printing multiple parts at once, position them so that there is only a small gap between parts to cut down on build time 9. Click the Settings button and expand it by clicking Advanced Options 10. Check to make sure that both the Left and Right dropdown menus are set to Makerbot ABS 11. On the quality tab, the defaults are adequate for our purposes (the default is to make a hollow part whose internals are a honeycomb structure, known as fill, taking up only 10% of the internal volume and putting 2 full shells around the honeycomb structure that have the external dimensions of the desired part) The internal honeycomb structure can be seen in this photo 12. On the Temperature tab, change both the Left Extruder and the Right Extruder values to 240 oC and save the settings. This changes the temperature that the extruder heads are at 13. WHEN SELECTING WHICH 3D PRINTER TO USE, BE SURE THAT IT IS PRINTING IN ABS, NOT PLA. The 3D printers in the Makerspace have two different spools of material, often of two different colors. Once you select a machine to print on, decide which color you want to print with. When standing in front of the machine, the spool on the left side goes to the left extruder and the spool on the right side goes to the right extruder. In the Makerbot software, select the model then the Object button. In the dropdown menu, select which extruder you want to use (ignore the colors that the Makerbot software thinks that extruder head is, instead rely on the color of the spools on the 3D printer). 14. Save the file then click on the Export Print File button. 15. Once the file is created, it will tell you statistics on how long the build will take and the amount of material used 16. Ensure that the statistics are reasonable (you part should take approximately 25-­‐45 minutes and use 8-­‐10 grams of filament) then click Export Now to save the file to your computer as a *.x3g file. 17. Remove the SD card from the 3D printer (just behind the glass door) and transfer the *.x3g file from your computer onto the SD card. 18. Insert the SD card back into the printer and close the glass door. 19. Use the navigation buttons on the 3D printer to find your file and print it. The 3D printer should heat up then begin extruding and creating your part. 20. YOU MUST REMAIN AT THE MACHINE FOR THE DURATION OF YOUR PRINT 21. Once the part is finished, remove it from the build platform using the spatula and peel off the rafts (the extra material that was printed on the bottom of the part) and clean up the part using files if necessary. ...
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  • Spring '15
  • GAERTNER
  • printer, makerbot

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