Everyone can do multicolour print

The first part of this video mention on several 3D printing technologies that are able to print with multicolours. The second part mentions two hacks/tricks which everyone with a 3D printer can use to make their own multicolour printing.
If you want to modify the code by yourself, here are the codes which you will be needed:
Beep sound:
M300 P20000 S660 ;
note M300 : beep sound command
note P20000 : beep duration (20000 ms) / (20 seconds)
note S660 : frequency 660 hz
Pause for filament swapping:
M600 E30.00 L300.00 ;
note M600 : pause for filament change command
note E30.00 : post retraction for (30 mm)
note L300.00 : final retraction for (300 mm) filament change

[@cleverkathy]

Thanks for this comprehensive study in multi-color printing. I tried a Geeetech A20M with 2 colors of filament but the whole thing was so difficult to manage that I returned it and bought an Ender 3v2, so thanks for mentioning this printer in the info. I love this printer and have found it much easier and more stable to work with. Print quality has been very good as well. I am encouraged by your info to go ahead and try printing an object in more than one color.

[@gravity-less3dprinting624]

Hi, thanks for your comment. Good luck for your multicolor print😊

[@Upinlights]

if you ugrade your firmware from marlin.crc.id.au you can do M600 - Filament Change

[@gravity-less3dprinting624]

Thanks for the solution idea😊