A raft also gives your model a bigger surface area to print on, increasing its adhesion to the build plate. If you do not know this and just hit "home" -the printer tries to approach the absolute zero point with its platform. There are several ways you can still fix and use a scratched build plate: Some of these methods include:

To fix a scratched build plate, you can use a raft on your models to avoid the scratches being present on your model. You can also remove the burrs from your build plate by sanding it with 120 & 80-grit sandpaper on a flat surface. Another method is to sand the entire build plate with sandpaper or palm sander.

What Happens if You Scratch Your Resin Build Plate?

However, some scratches can cause problems if they are not taken care of. Some scratches have raised edges and burrs, which can damage the FEP sheet and cause issues with the print. The logo on the surface is imprinted onto the bottom of the model, which can ruin its design. One user found the FUL logo on her print before she shipped it to a customer and as you can guess, that could’ve been very embarrassing. Apart from this, it works pretty well. Most users say it’s quite easy to flex and pop prints off the build plate. ELEGOO Mars Build Plate

You can rotate the build plate and continue sanding for a more evenly sanded build plate. To know whether your build plate is sanded evenly, you should see the surface has no visible low spots with a uniform surface color.

Step 6: After the above leveling is complete, set the current Z axis position as the initial height of the first layer position. If you get that right and the print holds on the flex plate (more on that in a moment), it's a great thing. Some people recommend to put the sandpaper on a flat surface like a glass surface and pass the build plate over it repeatedly until the burrs are gone. Best Resin Build Plate Replacement – Anycubic Photon, Elegoo Mars & More WB Magnetic Base with 3M adhesive resistant to harsh solvents and chemicals like resin, mean green, and isopropyl alcohol The 3DJake Flexible Buildplate System was specially designed for easy removal of the finished parts.

The home function of the printer does not ensure that the last set zero point is directly approached. Instead it works like this: After printing, you can easily remove this plate and flex it to get your print off it easily. It’s also made of stainless steel, making it harder to scratch or gouge its surface, giving it a higher lifespan. After the build plate is level, you can use the 80-grit build plate to add a bit of texture to the plate, sanding diagonally to put scratches into the build plate. After that, clean the build plate again with the isopropyl alcohol and lint-free cloth, then you should be done.To sand your build plate, you first want to clean the build plate with isopropyl alcohol and a lint-free cloth. Then you want to place the 120-grit sandpaper on the flat surface. Next, move the build plate over the sandpaper to remove the scratches and level out the low spots on the plate. However, the user reported that the scratches didn’t affect the model’s quality or adhesion. In fact, they say the model was even harder to get off the build plate after the build plate was scratched.