Finishing 3D Prints 101 How to Glue 3D Printed Parts Together

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For more information on MakerBot Desktop 3D Printers visit - https://goo.gl/gdYvvc • For more information on 3D Printing services, and finishing services for 3D printed parts visit - https://goo.gl/OsJ3pH • To purchase supplies for your MakerBot 3D Printer, or other desktop 3D printer visit - https://goo.gl/XLNYVh • HOW TO GLUE YOUR 3D PRINTS • Gluing your 3D prints can be a powerful post-processing method if you’re looking to combine multiple components of an assembly, or create a model larger than the build volume of your 3D printer. • In this How To, we will show you some of the best practices associated with gluing your 3D prints. • Working time will vary depending on your model. The process shown took us about 20 minutes from start to finish. • SUPPLIES • 3D Print with multiple components • Cyanoacrylate glue • 2 part epoxy • Rubber bands • Paper towels • Scraping tool • 400-1000 grit sandpaper • Respiratory mask • Gloves • Eye protection • STEP 1: OBTAIN YOUR MODEL (DESIGN OR DOWNLOAD) • For our model, we chose a prototype hair dryer created by Ferro from GrabCAD.If you’re designing from scratch, consider where you’d like the components to be joined. • STEP 2: PREPARE • A. When preparing models for gluing in MakerBot Print, keep in mind how your print settings will affect the gluing process. • Consider: Print settings, print orientation, and number of build plates • B. Because of the size of our model, we chose to print on our MakerBot Replicator+ Desktop 3D Printer in MakerBot PLA. • STEP 3: ROUGHING • Supplies used: Needle-nose pliers or flush cutters • A. Remove prints from the build plate • B. Remove rafts • C. Remove large pieces of support • D. Approach smaller pieces and fine details • STEP 4: INSPECT JOINTS • Your model is ready to glue when all surfaces and joints are smooth and fit together as intended. • STEP 5: SECURE COMPONENTS • Supplies used: Rubber bands • A: Join model components using rubber bands • Join model components using rubber bands as they will better conform to the shape of your model. • STEP 6: SPOT GLUE • Supplies used: cyanoacrylate glue, accelerator, paper towels • A. Begin gluing by, spot glue around your model • (this will ensure that your model is evenly attached in all places) • B. Apply a small amount of glue to a seam in a central location • C. Wipe away any excess with a paper towel • D. Use an accelerator and spray the area you just glued • E. Once glue has cured, remove the rubber bands • STEP 7: COMPLETE SEAMS • A. Apply glue evenly to the remaining unglued seams • B. Wipe away any excess • C. Spray accelerator • STEP 8: INSPECT • Take a moment to examine the fit. • STEP 9 (OPTIONAL): FILL SEAMS • Supplies used: Bondo, 400 1000 grit sandpaper and putty knife • If you find that your seams are rough or have gaps, you can use bondo or filler to smooth them - this works especially well if you plan to paint your model or create a silicone mold around it. • Fillers like bondo come in two parts - filler and hardener. • A. Pour small amount of filler on a tray • B. Spread small amount of hardener next to filler • C. Mix and spread generously across seam • D. Allow to cure • E. Sand lightly using 400/1000 grit sandpaper

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