This one takes up to 3 neodymium magnets (size 6.0 x 3.0 mm).
There are three files to choose from if your machine is not calibrated or is generally a bit inaccurate:
- horizontal clearance of 0.3 mm, 0.15 mm or no clearance
- vertical clearence is always 0.16 mm
I recommend to use one or a maximum of two magnets, because these little things can be quite strong.
There are no openings in the bottom layer. The magnets are inserted during the printing process:
- Start printing.
- Pause at the last layer where the openings are still visible.
- Insert magnets
- Resume printing.
I'm using the "change filament at height" plugin with cura 3. You can see my settings in the pic attached.