2040 Bed Level Direction Indicator

A clean and simple bed leveling direction reminder (U for Up and D for Down) for people like me who can never remember which way to turn their bed leveling wheels. This accessory will slot into any 2040 or 4040 (or larger) rail, though you will need to remove any any caps to slide it in the T-Groves.

A layer pause one or two layers above the U and D letting start forming and colored Sharpie can allow you to make it easier to read in low light and different angle situations. I used a Silver Sh