Abstract: Apply the processed side panels with elastic tape (electrical tape or medical tape works) by overlapping and sticking them firmly (the overlapping intersections can range from 1 to 3mm depending on the tape's elasticity). Then carefully push the edges apart, allowing the seams to be contracted by the tape's elasticity. After that, apply glue and clamp ..

Attach the processed side panels together using elastic tape (either electrical tape or medical tape) with overlapping and crisscrossing layers (the overlapping areas can range from 1 to 3mm depending on the tape's elasticity).

Then carefully pry open both sides in this manner, and the seam will be contracted by the elasticity of the tape.

Then, apply the glue and clamp it firmly with a clip.