Elf Bed Flattening Frame

thingiverse

This is a Nine Point Leveling frame or bed flattening frame designed specifically for Creativity Elf/Coreception and other clones. It adds five pressure points to your bed to help straighten out most flatness issues you might have with the base aluminum bed. It won't pull down high spots in the middle, but rather address low spots that are common on most beds. The knobs are used to distribute the force of the screws and prevent damage to your bed heater. On the stock printer with an insulation layer, a thin layer of Red RTV allowed to cure on the knobs will keep even PLA knobs from sagging under bed heat (I've printed PLA and PETG, but haven't tested ABS temps, which are good up to about 80 degrees). If I encounter trouble getting a knob to turn, I use a 3mm allen key to raise or lower the screw holding it, then it generally turns more easily. Raising or lowering the screws and knobs requires opposite direction adjustments compared to corner screws. Leveling should be done by adjusting the four corner leveling points first, followed by printing the nine point level calibration print while live adjusting the knobs. If you're new to this process, I recommend starting at slow speeds until you get a skirt and perimeters to adhere, and your first print should be at 0.28 layer height. After that, you can switch to higher speeds (I calibrate at 100mm/s) and make live adjustments. Once you've got a good 0.28mm calibration, you might want to calibrate 0.2 or even 0.16 to dial things in even better. Your first attempt may not be perfect, but the second one should need only minor tweaking to achieve a smooth, solid first layer.