Build Plates
The build plate is the foundation of each print. There are many types of build plates with different characteristics. This page introduces the common types of build plates and discusses considerations that must be made with each.
A heated build plate helps with adhesion and reducing warping, especially for materials like ABS, PETG, and Nylon. A cool plate can be used for materials that do not warp significantly, such as PLA. Some materials require specialized surfaces to adhere properly, regardless of temperature.
PET (Polyethylene Terephthalate) sheets are commonly used as build surfaces due to their durability and good adhesion properties. They provide strong first-layer adhesion for materials like PLA and PETG while allowing prints to be removed with relative ease after cooling.
- Works well with PLA, PETG, and TPU.
- Glue sticks and other adhesives should be used to improve adhesion.
- Typically used with a heated bed for optimal adhesion.
- Clean with isopropyl alcohol or mild soap and water.
- Metal tools can be used but avoid scraping aggressively to prevent surface damage.
- Replace when adhesion significantly decreases.
PEI (Polyetherimide) is a popular build surface due to its strong adhesion properties and durability. It comes in two main types: textured and smooth.
Textured PEI plates have a rough surface that helps with adhesion and gives the bottom of prints a textured appearance.
- Excellent adhesion, reducing the need for additional adhesives.
- Leaves a textured finish on the bottom of prints.
- Can be more difficult to clean than smooth PEI.
- Wipe with isopropyl alcohol regularly. Can also be washed with dish soap to remove oils if adhesion fails.
- Use a gentle brush or cloth to clean textured surfaces.
- DO NOT USE METAL TOOLS. They will damage the texture
- Be careful when manually leveling printers with textured PEI beds as the hot end can scratch off the coating
- Avoid acetone, as it can degrade the texture.
Smooth PEI sheets offer a glossy finish on the bottom of prints and are often laminated onto a spring steel sheet for flexibility.
- Provides a smooth bottom surface for prints.
- Great for PLA but struggles with other materials
- Requires regular cleaning with isopropyl alcohol to maintain adhesion.
- May need additional adhesives for some materials.
- Clean with isopropyl alcohol before each print.
- Avoid excessive use of adhesives that can create buildup.
Glass build plates provide a flat, smooth surface that can enhance first-layer adhesion when used with adhesives like glue stick or hairspray.
- Works well with PLA when paired with an adhesive.
- Provides a very smooth bottom surface.
- Can require heating to improve adhesion for certain materials.
- Prints may release automatically after cooling due to thermal contraction.
- Clean with isopropyl alcohol or warm soapy water.
- Use a razor blade or scraper to remove stubborn residue.
- Avoid sudden temperature changes to prevent cracking.
PEY (Polyethylene) is a less common build surface, typically used for specialized applications.
- Not as widely used as PEI or PET.
- May have specific adhesion requirements depending on the filament type.
- Can offer unique adhesion properties for certain materials.
- Wipe with a damp cloth or isopropyl alcohol.
- Avoid abrasive cleaning methods that may scratch the surface.
- Store in a dry environment to prevent material degradation.