I made my own design of a Ikea Lack drawer system.
Print every part once except for the slider spacers. You need 4 of the "Slider_Spacer_6", two of the "Slider_Spacer_7" and two of the "Slider_Spacer_8".
After the print you have to glue the spacers to the sliders.
The author marked this model as their own original creation.