New Dual Extrusion Test Prints

MakerBot Replicator 2X Experimental 3D Printers have started shipping, so let’s talk a little bit about what some of you are about to get in the mail. In particular, there’s an SD card that you won’t want to miss and we want you to know that you can expect two boxes in the mail.

The SD card in a new MakerBot always has a set of objects that we love to make. They also serve as great test prints for you while you get started. In the case of the MakerBot Replicator 2X, we’ve added some pretty cool dual extrusion models to the regular list: Pet monster Valentine by Andreas; Traffic Cone by CocoNut; MakerBot Cupcake by MakerBot; MakerBot Pendant by MakerBot.

We made the MakerBot Replicator 2X as an experimental 3D printer, and dual extrusion will not be the easiest thing you’ve ever done because printing in two colors simultaneously on a MakerBot is still experimental. It’s come a long way since we launched the original Replicator, but you’ll still see some artifacts in dual extrusion prints.

Check out the images below and remember that we are continually improving our software and hardware, and the number one thing you can do to ensure you have the best MakerBot experience is to stay up-to-date with new MakerWare and Firmware releases.


Here you can see what we call a deposit. It happens during the last 1% of a print cycle when it switches colors and when it happens, an extra amount of heated ABS is extruded on the top of your model. You can remove these pretty easily, but doing so may affect the appearance of your print.


These lines on the side of your object, which we call zippers, will always be vertical. That’s because they occur at the transition point from one layer to the next. Sometimes they are a little rough, and sometimes smooth. Any small nodules can be removed, but again, doing so may affect the appearance of your print.

We’ve worked hard to minimize these artifacts and we’ll keep working on minimizing them. As a purchaser of an experimental printer, you’re on the adventure with us and we can’t wait to see what you’ll make. Please share all your thoughts and feedback (there’s been a ton already!) through our general feedback line, Also, when you share your models on Thingiverse, please use the tag “dualstrusion” so we can see what you’ve been up to!