3d printed scraper

thingiverse

You'll want to start by carefully removing any excess filament that may be hanging loose around the nozzle area, using a pair of tweezers if necessary to get into tight spaces. Next, switch your printer to its maintenance mode and allow it to heat up to a moderate temperature - this should help loosen any stubborn glue residue. Once it's hot enough, use a gentle stream of water to spray down the bed, making sure to saturate the area where the glue stick is stuck. Allow the mixture of water and heat to sit for 5-10 minutes before using a scraper or putty knife to gently pry up the remaining adhesive, working your way across the surface in smooth, even strokes.