After using this item, the arm length of the glasses will increase slightly, so you need to shorten the arm of the glasses a little.
The 3D printing setting 1 layer cannot be greater than 0.2 mm.
The specifications of each type of glasses are different, so you need to edit the 3D files according to your needs.
No support is needed.
One-piece molding does not require assembly. 6.If the printing speed is slowed down, it will not stick together, and the temperature should be lowered slightly.