It is December and that means it's time to print your own Christmas ornaments. Christmas ornaments are a great way to practice your 3d modeling skills and I will show the approach I took in replicating one of our existing ornaments.
The video above quickly goes through the process I took in modeling, printing, and painting my ornament. Below is a summary of the steps I took.
Step 1: Choose Your Model
The above picture shows the ornament I decided to replicate on the left with my finished and printed design on the right. I used Fusion 360 as my modeling software. Fusion 360 allows for parametric modeling and also has a sculpting environment that allows for making organic shapes. I won't go into great detail on the modeling but the video above gives a quick overview of my approach. Those interested in learning how to design for 3d printing can check out my online tutorials by visiting desktopmakes.com.
Step 2: Print and Prime
I printed the model in pla. I used 2mm resolution and no supports or raft and a 10 % infill. After printing I took the model outside and hung it on a bird feeder using a coat hanger wire and applied a layer of primer. Depending on the quality you're looking for and the amount of time you want to spend you can chose to sand the model with a fine grained sandpaper prior to priming. Just make sure to wear a dust mask when sanding plastic and be in a well ventilated area.
Step 3: Paint
After priming I let the model dry overnight and then painted using acrylic paints. I painted the entire model in white and then went back and applied paint to the scarf, hat, nose, eyes, and mouth. I applied two or three coats on each section.
Step 4: Seal With a Clear Coat
After painting and letting the paint dry it was time to apply a clear coat. The clear coat will seal and protect the paint job as well is give the model a nice finish. I ended up going with the Rust-oleum glitter spray finish. It applied a nice sparkly shimmer to the ornament similar to the original model.