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FlexiDinos Cäcilia the flexi Quetzalcoatlus print in place articulated pterosaur 3D Printer File Image 1
FlexiDinos Cäcilia the flexi Quetzalcoatlus print in place articulated pterosaur 3D Printer File Thumbnail 1

FlexiDinos Cäcilia the flexi Quetzalcoatlus print in place articulated pterosaur

AndreasJoskaSutanto avatarAndreasJoskaSutanto

June 17, 2026

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Description

How was this beast even possible?!?

Imagine 11 meters of flying nightmare. That thing's wingspan was as wide as the longest distance in our flat. It would have reached from the washing machine to the kitchen table, oida!

Print Instructions

100% scale is good to print. I've uploaded three different tolerances. The smaller the number, the tighter. The "regular" setting gave the best results on my Prusa Mini. If you don't mind matching the scale to your other FlexiDinos, you can of course print the model larger. I also had good results with the tight fit scaled to 150%.

Working prototypes were printed in PLA with .2mm layer height and a .4mm nozzle. Also tested with PETG and ABS. 

Assembly

This model is printed in place, it should print fine on most machines.

When it's done, just wind the wings inward starting from the tips. Then bend the legs downwards and the neck upwards. The beak opens. For the flight stance just straighten everything and bend the whole head upwards, to give it an aerodynamic shape for flight.

If the parts stick together try separating the joints using a knife, screwdriver or spatula. WATCH YOUR FINGERS! For the next print use the bigger tolerance file. If the problem persists, write me a DM and I'll come up with a solution.

Troubleshooting

Some advice how to break your prints and cut your fingers separate stuck joints. I collected them while printing prototypes and trying to get the tolerances right, so make use of them before you ruin your print:

  • The tip of the beak can get stuck a little. Use a knife to separate upper and lower jaw. Make sure to cut outwards from the neck, as you might break its tongue off, when you cut inwards and slip.

  • The outer wing joints are quite fragile, when they give you trouble just grab the wings very close to the joints to avoid breaking the wings off of the joints.

  • Generally, when parts are stuck it's always preferable to hold the model as close to the joints as possible when loosening them.

  • When the joints are impossibly baked together, you can try gently bending them lengthwise. This often results in a satisfying snap, when the stuck contact point breaks (see picture).  Or in an unsatisfying snap when the wing breaks. Or an even less satisfying snap, when your finger breaks.

  • If nothing else works, bring out a pair of pliers and good luck. 

About the Model

The scale is roughly 1:100, so it fits most of the other FlexiDinos. As always it's as easy to print as possible. The neck and leg joints are designed to stay in place. The wings are flappy.

When I designed it I focused on the two stances. The airborne version is with its wings folded outwards and its head bent upwards. The earthbound version has its wings folded in and used as forelegs.

Support me on Printables!

Troubles? Let me know! (tolerances especially)


I can't stress this enough, so I'm going to write it down here: FlexiDinos are in no way suitable for small children. Parts can break off and leave sharp edges, so make sure your children are old enough to know what they're doing before letting them play with FlexiDinos!

This text was typed by a real human (me). Parts of it were reviewed and improved with deepl.com and Google Gemini. No AI was used in the creation of the model.

License:

Standard Digital File License

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