Flsun 13 Plus bed leveling knobs/wheels LARGE (probably works with Creality CR 10 and others)

thingiverse

This is a bed leveling wheel designed specifically for use with the FLSUN i3 plus or C plus 3D printers. The small wing nuts that come with it, which are also known as butterfly nuts if you read the instructions carefully, can be quite frustrating to adjust and work with. However, these wheels make the process of adjusting the bed leveling screws incredibly smooth and effortless when making adjustments. Each wheel is approximately over 2 inches in diameter. To print this part, you will need to print four copies of it, along with some M3 nuts that are specifically required for assembly. The design includes a sacrificial bridge in the screw hole that is only 1 layer thick when printing at a resolution of .3mm. This bridge will need to be carefully poked out using a small screwdriver or an M3 screw after printing. When printed, the tolerances on this part are quite tight, so you may need to use a bit of force and finesse to assemble it correctly. To insert the nut into the wheel, you can use an M3 screw and a wingnut that has been threaded in reverse.