Easter Egg, Two Color Gift Box

myminifactory

What's not to love with a 3D printed, two-color Easter Egg filled with candy? Designed in Autodesk Inventor Professional 2016 and printed in PLA on a Lulzbot TAZ 5 using its dual extruder head V.2. The glow-in-the-dark version is a huge hit as seen in the photo. A single-color version is also available for those who haven't upgraded to a dual head yet. Candy not included, but that's what makes it even more fun! Important Notes: SCALE/SIZE: Increase the top slightly and the two halves will fit perfectly together. The original CAD drawing had zero tolerance, so I made the top 0.3% larger than the bottom, which worked well. I printed the bottom at 75% scale and the top at 75.3%, and that worked great on my Taz 5. SPEED: Printing at a slower speed is advised for the lower part of the bottom and the upper part of the top. While it will print at full speed, you may get some deformations due to inadequate cooling. I had my printer set at 50 mm/s, but turned it down to 60% when needed. If I left the print unattended overnight, I printed the entire part on 50% (25 mm/s). LAYER HEIGHT: The egg can be printed at a 0.4 mm layer height for a quicker print, but thinner layers will give better quality. Count on several hours of print time per part. WIPE AND PRIME TOWER: If you use a wipe & prime tower when printing two colors, you'll either need to make a big tower or use a brim. An alternative would be to secure the tower with clay, hot glue, or similar. Without a brim or other foundation, the wipe tower may fall over. I used a 10-line brim and that worked fine. If you're unsure about bed adhesion, it's good to also secure it with tape even if you use a brim. I had the tower come loose twice. The print will continue and won't be completely ruined, but you'll end up with a big "plate of spaghetti" on the bed and some extra "drool". SPOOL HOLDERS: The original Lulzbot spool holders and feeding tubes can have quite high friction, particularly when the spools are full. Too high friction will lead to filament grinding, which will result in a ruined print. We designed the spool holders you see in the photos just for this Easter Egg. You can download them here from http://www.thingiverse.com/thing:1424791 on user Killacycle's Thingiverse page. COOLING: 100% cooling fan speed gives a better print. This object is original artwork by Eva Hakansson and licensed under the Creative Commons - Attribution - Non-Commercial license.