Do you want more space in your Ikea BESTA drawer?
With this model (for 3D printing) you can easily drill 4 holes to get more space.You get a 32mm increase in height.Just disassemble the front plank, and put the 3D model over the metal pins.Drill the 4 holes under the metal pins.In 1 place the plank has a big hole that needs to be filled with wood in order to drill the new hole.After this insert the 4 metal pins in the new drilled holes, and assemble the drawer.Move the rails down by 1 space.Insert the drawer and you're done.