About

This is the third instalment of my popular Christmas Tree Secret Stasher series. The tree features a removable, hidden lid, and is perfect for stashing small lollies or other small trinkets. Additionally, for the first time, the base and stand have optional threads, which means that the tree is less fiddly to use.

Printing

Print the tree with supports (I recommend tree supports). Print a single base and a single lid, each of the same connection scheme (i.e., don't mix a threaded lid with a non-threaded stand, or vice-versa).

Assembly

Everything should just screw together (note that the threads may be stiff at first). Note that the thread between the base and the lid (if applicable) is left-handed (opposite to normal)! The thread between the tree and the base is a standard right-hand thread.

Design Process

I wasn't sure as to the best way to model the curves of the tree in my CAD software, so I decided to flex my programming muscles and generate them procedurally. I wrote a parameterised Python script to generate the mesh for each section of the tree, and then stitched each section together in CAD. In hindsight, it probably would have been quicker to create everything in CAD, but it was a fun exercise nonetheless.

Troubleshooting

If the threads don't work smoothly at first, try to loosen them by repeatedly unscrewing and re-screwing the tree's lid.

Remember that the stand screws into the base with a left-handed thread (i.e., opposite to normal). The thread between the tree and the base is a standard right-hand thread. Also, it may be difficult to screw the stand into the lid - ensure that the the two parts are perpendicular to one-another, and apply some pressure.

Also, remember that the tree will need supports - I recommend using tree supports.

Christmas Tree Secret Stasher - Curvy Edition

0.2mm layer, 2 walls, 15% infill