Gregor the flexi Ankylosaurus print in place articulated dinosaur

Strike and Maim!

(See below for instructions on printing and finishing)

An all time favorite for everyone who thinks Triceratops is mainstream: The good old Ankylosaurus. Where its thagomizer reaches, nothing remains. Designed for battle, but also practical for major renovation work, the Ankylosaurus is a welcome guest at any demolition party.

Just some quick design notes, you can see the whole design process here if you want to dive down the rabbit hole. Since this is a very wide dinosaur, this model had to be designed without the usual approach of it lying on its side. So I had to come up with a way to print it on its back and still have a curved shell on top. It took me about three weeks to come up with the first two joints, and I didn't know if they would work, so you can imagine how happy I was when they finally did. 

This model is a show piece. So if you want to impress your 3D printing friends, just show them the back of this model and tell them you sawed your print bed into 3 pieces to get this result or something :D

UPDATE: As usual I raffled off the name among my club members and Ben Kenobi got to name it, so say hello to Gregor! Thanks for your choice Ben!

How to print the model and loosen the joints

The head is only attached to the bed by the horns, which gives it very little contact area and it tends to come off easily, so I added a brim version that you should definitely use. I couldn't get a single prototype done without it, so don't be too proud to use it. The brimless version worked well for me with PETG, so you can give it a try. 

The joints need to be broken when he gets off the bed. Just take the third joint and apply pressure from the front of his head. WATCH YOUR FINGERS! You don't want them in the gaps between the first two lower joints when they break! Don't repeat my mistakes.

That should do the trick. It's pretty tight at first, but the more you play with it, the wigglier it gets.

As mentioned before, I wanted to show off with this model. So there are very little tolerances and this makes it not as wobbly in the vertical axis as my previous models. I'm not quite sure if I like it, but since I've never designed a model lying on its back before, I'll go with it. Let me know what you think and I'll consider it for my next FlexiDinos.

And since I have an appropriate joke of my own making, I'll just drop it. It only works in Austrian German, so only one person may get it. But anyway: Was sagte Crudla, als sie die Fleischerei betrat? “An Kilo Saurus bitte!”

If you like this model, I have created a lot of other cool FlexiDinos. You can support my work and get exclusive stuff by becoming a Club Member.

• Stegosaurus Günther
• Triceratops Theobald
• Pterodactyl Bertha
• T-Rex Tessa (free) and an improved Version (paid model)
• Brachiosaurus Ginko (paid model)
• Ankylosaurus Gregor (paid model)
• Velociraptor / Deinonychus / Utahraptor JJ (paid model)