3D Printer Instruction Quiz

Explanation
Preheating the printer platform is necessary to ensure that it reaches the optimal temperature for printing. This helps in ensuring proper adhesion of the print to the platform and prevents warping or lifting of the print during the printing process. Preheating for at least 15 minutes allows the platform to reach the desired temperature and ensures successful printing.

Explanation
The recommended distance for the nozzle to be from the platform is 2.0 mm. This distance ensures that there is enough space for the filament to properly adhere to the platform without being too close or too far. Being too close can result in the filament sticking too much to the platform, causing difficulties in removing the printed object. On the other hand, being too far can lead to poor adhesion and a lack of stability in the printed object. Therefore, a distance of 2.0 mm strikes a balance between these factors, resulting in optimal printing conditions.

Explanation
Before printing, it is important to clean the cell board to ensure that there is no residue or debris that may affect the printing quality. Preheating the platform helps to ensure that the material adheres properly during the printing process. Setting the platform height is necessary to ensure that the printing nozzle is at the correct distance from the platform. Therefore, all of these steps should be followed before printing to achieve the best results.

Explanation
When printing a ball-shaped model and models with very small features or sharp ends, it is important to adjust the airflow next to the nozzle. This helps in controlling the cooling of the printed material and prevents any warping or deformities. Additionally, adding extra support material is necessary to provide stability and prevent any sagging or collapsing of the printed object during the printing process. Therefore, both options A and B are correct and should be followed in order to achieve the best results when printing such models.

Explanation
Before shutting off the printer, it is important to ensure that the platform is at the bottom to prevent any damage to the printer. Additionally, removing and cleaning the cell board helps to maintain the printer's performance and prevent any potential issues. Finally, putting everything away ensures that the printer and its components are properly stored and protected. Therefore, all of these actions should be taken before shutting off the printer.