Sometimes large parts can be hard to remove from the print surface. By adding a thin layer of Elmer's Extreme glue stick to the print bed the parts will be much easier to remove when the bed is cooled. Give it a try and let me know your experience.
Mike Battaglia Official comment
Hi Daniel, Matthew's original post was likely intended to assume you are using a PrintinZ or Buildtak surface.
Buildtak is what we used to sell but have switched to our own PrintinZ surface which is more durable and has a longer life. Sometimes large prints can stick TOO well. We recommend using a spatula around all sides of the print instead of trying to pry it off from one side. Matthew is suggesting to add a glue stick to your toolkit on top of PrintinZ for even easier print removal.
Should the spray be applied directly to the metal build plate? I'm thinking of trying this out.
I don't recommend using a spray. Any spray that contacts the wheels, belts, bearings, threaded rod, and other moving parts will make them sticky and will cause poor movement of the motion platform.
I also don't recommend using the bare aluminum build plate as a build surface. For most feedstock materials the best results will be realized by printing on the PRINTinZ surface. You can order one from our Shopify site here: https://shop.re3d.org/collections/gigabot-accessories/products/copy-of-printinz-a-vertebrae-plate-for-gigabot
What filaments are you printing with?
I have been using PLA only for my prints.
What is the difference between PrintinZ skin and the BuildTak? Will a full size PLA flat-bottom print (600mm x 600mm)just pop off the build plate if I use one of these skins?
I'm ready to print huge :)