Hello Mete Bey, there can be many reasons for one of the most common problems encountered in FDM 3D printing, the warping of large parts. However, when we focus on common solutions and reasons, the following key points can be considered:

• Use Brim (Skirt) and Raft Structures: Supports like skirts and rafts can significantly help prevent warping on all layers. Skirts place a few rings around your part to increase support and prevent warping, while rafts create a new structure under the model that is relatively easy to remove. You can get support from Xometry experts for the skirt settings that best fit your design.
• Bed Adhesives: It’s very important to improve bed adhesion for ABS 3D printing. Techniques include glue sticks, ethyl alcohol technique, painter’s tape, hair spray, and many similar methods. For example, printing on a PEI sheet or tempered glass surface can provide better adhesion for ABS.
• Level the Bed: One common cause of warping in the first layer when printing with ABS is improper bed leveling. It’s very important to level the printer bed before starting each new print. A simple method is to manually calibrate using a piece of paper. Of course, you can research more advanced techniques as well.
• Use a Protective Enclosure: An enclosure provides a controlled environment for your printer, helping to maintain a constant temperature and protect against air currents. Try not to open the enclosure during the print process to get the best results.
• Quality Filaments: ABS is a hygroscopic material, meaning it can absorb moisture from the air and cause warping. It’s very important to dry the filament before printing. The best method is to use a filament dryer, but you can also use a kitchen oven under careful observation. It’s always necessary to use materials of optimum quality.
• Optimize Slicer Settings: Slowing down the print speed can reduce warping. In particular, it’s very important to reduce the speed for the first few layers because these layers are the most prone to warping. Printing with skirt and raft solutions can also help prevent this.

I would like to mention that; depending on the specific requirements of your project, different needs may arise and special solutions may be required. Don’t hesitate to ask more questions or request explanations via Xometry Pro. You can also reach out via email for detailed custom solutions regarding your 3D printing projects: info@xometry.com.tr , CC: durmus.yilmaz@xometry.com.trPhone: +90 (212) 221 0635Call Center: +90 (850) 242 0472