DescriptionKeeps small sections of the growing cube material from topping over in the germination tray.
There are several variations.
This is an entirely optional part. It is convenient if you germinate small batches of seeds, and break the cube material into relatively small pieces. These small pieces tend to topple over in the germination tray, drowning the plant.
This part, in some variations, prevents the growing cube(s) from toppling over.
The most convenient variation seems to be the 3x3 with label: as growing cube sheets apparently come organized in rows of 9, one such row can be broken off and, in three 3-cube pieces, inserted into the cube holder. Write some identifier (like a letter) on the label protrusion, and you can easily keep track which seed is which even for small batches.
Bill of materials
Food-safe 3D printing filament
PC running OpenSCAD.
PC running a slicing program suitable for your 3D printer, such as Slic3r.
Download one of the OpenSCAD models, depending on the size and shape you want:
Alternatively, if you are familiar with
gitand have it installed, clone the entire Project Springtime website from here and look for the
In OpenSCAD, open this
.scadfile you want and and select "Design/Render (F6)".
In OpenSCAD, export as STL.
In your slicer, place the previously exported STL file.
In your slicer, you can probably use default parameters for your printer. (You know your printer better than we do.)
In your slicer, export the G-Code and print the G-Code with your 3D printer.