LEGO Happy Plants Display | Key Tray

Backstory: 

I received the LEGO Happy Plants as a Christmas gift and brought them to work. 
They looked nice… but not that happy just chilling on my desk. I felt that a proper presentation plate could really highlight them and give them more presence. 

This project was also a great excuse to try heat inserts for the first time, and to finally experiment with TPU.

As a bonus, the plate can also be used as a small tray, perfect for coins, keys, or other desk items. 

How it Works: 

• Main body, split into a top and bottom part. 
  I initially planned to use PC-CF, but it warped badly. I switched to ABS, which gave better adhesion and matched my experience with the material. 

• Colored accent part, purely for style and contrast, printed in PLA. 

• TPU feet, because… why not [laugh] 

Overall size: 

• Length: 18 cm 

• Width: 9 cm 

 Future improvement ideas: 

• Add one or two extra screws. Even with very good bed adhesion, there is still a slight banana effect (minor bending). 

• Create a stackable version. 

• Create square and round variants. 

Note:

The model was created in Onshape and is almost fully parametric. 
If you need a different size, feel free to ask, adaptations are totally possible.  As the project is still evolving, I decided not to share the project files for now, although this would be possible in theory with Onshape… 

 Additional Materials: 

• 4x M3 heat inserts (4mm height) 

• 4× M3 countersunk screws (6 mm or 8 mm) 

Technical Specifications: 

• Printer used: Prusa Core one 

• Nozzle: HF 0.4 mm (extrusion width: 0.45 mm) 

• Filaments used:  

  • Polymaker Polyterra PLA: color part 

  • Polymaker Poylite ABS: main body (top & bottom) 

  • Prusament TPU 95A: feet 

Printing Instructions: 

Assembly Instructions: 

• Insert the heat inserts into the top part. 

• Slide in the colored accent part, make sure it’s oriented correctly. 

• Screw the bottom part onto the assembly. 

• Add the TPU feet.