The cacti background is available in two sizes:
When using the cut model please stick the pieces together and secure everything with the screws or some glue.
The dinosaur model is designed to fit in the cacti background. Just stick it in and maybe use some glue.
The tube is interchangeable with any other 30mm diameter tube (for example a broomstick). The “trex_left” model has a cutout for the given tube. So when using something different than the provided tube there is no need for the model “trex_left”. Just print the “trex_right” part two times. In this case there is no need for the lockingpin either.
Update (17/07/23): added a 2nd version of the tube. Now printable in two parts.
The author marked this model as their own original creation.