These are all designed to use 6x2 magnets. You can download the FreeCAD files and change the size of the magnet if you use something different. You do need to download the baseplate source file from the original model as this design links it in.
Magnets are inserted from the bottom of the drawer and slide towards the center. If the bridge is done well, you can do this mostly with your finger. However, you can use a small tool (I find a T6 works great) to assist to push into place.
You can see if a magnet is installed from the top of the baseplate through the small exposure hole. To remove the magnet, you can use a tool to push it out (I find a T6 works great here, as well).
The magnet lock can be inserted to help ensure the magnet does not slide out. This is not necessary, but can be an added bit of protection if you are worried about the magnets being ingested by a small child or animal. These are very small, but quick to print. I find printing these in PETG means they can be re-used, but PLA is single-use.
You can use the original's M15x1.5 thumbscrew to secure your bins, or the M6 socket screw included here. I find using a tool is easier than the thumb screw, and this version is designed to be printed in an orientation that will make the threads stronger.
It should “just work” withing having to fiddle with slicer settings (although you certainly can!). These have been tested in multiple slicers and printers with a 0.4 mm nozzle and .2 mm layer height. If you aren't using those settings, you can download the provided FreeCAD files and adjust the first layer height and layer height to get optimizations for your settings.
I tend to print my drawers in PLA, and the case (available in the source GEN2 original model) in PETG.
Initial Release.
The author remixed this model.