Just click on the following link and download the the .stl model file of the asthma inhaler:

https://www.thingiverse.com/download:2658871

Open the downloaded .stl model file with your favourite slicer tool (i.e. Cura, KISSlicer, Repetier, Slic3r, etc.).

The 3D printing slicer prepares the selected model for your 3D printer, generating g-code, which is a widely used numerical control programming language. There is a large number of slicing software, many of which is free. At the following link you can find a list of the top 3D printing slicer software tools:

https://all3dp.com/1/best-3d-slicer-software-3d-printer/

Once you have opened the .stl model file with your slicer tool, set the 3D printer parameters as following:

• Perimeters = 2
• Solid top & bottom layers = 3
• Layer Resolution = 0.25 mm
• Layer Infill = 25 - 30%

There are basically 2 ways to orientate the object to achieve an optimal printing:

• 120 degrees rotation so that it lays on a side on the printing bed (see the attached picture of Cura);
• bottom up so that it stands with the two small columns on the printing bed (see the attached picture of Cura).

I've experimented both printing options and I got the best printing results implementing the rotation by 120 degrees.

Then genetare the g-code file with the slicer tool and copy it to the SD card.

Insert the SD card in your 3D printer and select the g-code file for printing in the menu.

I suggest you to use a bright color for the filament (in my case yellow so that it looks great with the designed smile face) to improve the friendly look of the object for the final user.

Then Launch the 3D printing.

Just remove the printed object from the 3D printer bed and snap it onto your asthma inhaler. That's it! You can now improve the usage of your inhaler asthma device..