Printing two bases for 12cm fans
http://www.kylemarcus.com/3d-printer-upgrades-making-the-cr-10-silent/
If you are looking down at the printer from above, turning the wheel clockwise will move the corner of the bed downward, away from the nozzle. Turning the wheel counter-clockwise will move the corner of the bed upward, toward the nozzle.
*https://www.nanodlp.com/ *Install to raspberry pi; https://www.inov3d.net/installing-nanodlp-wanhao-duplicator-7
online model repo; https://www.thingiverse.com/
convert jpg to SVG and then import https://convertio.co/jpg-svg