3D Printing Filament by OVERTURE. Details:Description:our 1. FAQs:Why can't the filaments stick to the build bed? 1. Check the temperature setting before printing, PLA filaments have lower extrusion temperature;2. Check if the plate surface has been used for a long time, it is recommended to replace it with our new one to ensure an strong first layer adhesion;3. If the first layer has poor adhesion, it is recommended to re-level the print substrate to reduce the distance between the nozzle and the surface plate;4. If the effect is not good, it is recommended to try printing the draft before printing. Specification: Temperature Recommended Extrusion/Nozzle Temp: 190C - 220C(374H~ 428H)Heated Bed Temp: 25C - 60C (77H~ 140H)Filaments Diameter and Accuracy: 1.75 mm +/- 0.02 Filaments Net Weight: 1kg (2.