FlexiDinos Tessa the flexi T-Rex print in place articulated dinosaur with hinged jaw

Edit 16. 12. 2025: A user pointed out, that the model is not at the correct scale to fit the LEGO saddle I constructed for it. So I noticed this model is so old that it doesn't fit the 1:100 scale I use for all my models for a long time now. Because of this I switch the model file to the improved one you'll find in the paid version.

Yes, I know it's blasphemy as we already have the awesome mother of all flexi dinosaurs, the original Flexi Rex from DrLex. But in order to achieve my goal of creating an entire Jurassic Park, I need a version in my style to match that of  Günther, Theobald and Bertha. 

To find a name for her, I held a prize draw and my club member SpeakingOfBrad won and chose wisely. Thank you for your support and good choice! If you, the reader of these lines, would like to have a chance to choose a name for my future creations, join my club!

Tessa the T-Rex has a hinged jaw so she can chew the heads off anything that gets in her way. Chomp, chomp! Gulp! Yummy!

In the style of Theobald, I decided not to make the model parallel to the baseplate. This makes it more dynamic and fits in with my other FlexiDinos. With its sturdy hinges, it is as robust as you would expect from the fiercest predator of all time. 

If you know my models, it's always my aim to make them as quick and easy to print as possible. This one is no exception. I am currently printing it with a .6 nozzle and, when I am particularly impatient, a .4mm layer height. I have also managed to get good results when scaled down to 55% of the original size. I think you could go even smaller with a smaller nozzle, it's up to you to find out.

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!

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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 and his younger brother Fünther (the 2025 Update)

• 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)

• Dimetrodon Karli (paid model)

• Parasaurolophus Filip (paid model)

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You want a new model for free every month that is normally hidden behind the paywall? Check the FlexiDinos Model of the Month regularly!

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