This is a an Airbus inspired decal for the 5 position flap lever. The .png is 8.5cm x 1.7cm. Copy and paste into a word document to scale to exactly the size required for your 3d print by right clicking on the image and selecting 'size and position'.

It is suggested to print onto self adhesive paper.

Credit for the idea goes to GhostDragoni. Link to their '9 position slot insert' here: