1, steel wire is used to determine the thickness of steel wire, which is generally based on 12 rigid steel wire, and can be selected according to preferences.

2. The length of steel wire is generally about 50 cm. After bending and merging, leave about 10 cm as the handle.

3. Bend the two steel wires outward about 80 degrees from the upper end of the handle, taking two fifths of the distance, then bend them upward for the second time, and finally bend the top end into a circle.

4. After the slingshot frame is symmetrically formed, the two folding steel wires at the upper end of the handle of the slingshot frame should be tightly wrapped with thin copper wire or thick fishing line to prevent looseness.

5. Install rubber and elastic seats for the slingshot frame: both circular rubber bands and automobile inner tubes can be used, two of which are about 60 cm long. Cut rubber strip with a meter ruler, and cut hard. It should be symmetrical. The elastic seat can be made of cowhide or pigskin, and it can be very strong.

6, 8 cm long and 4 cm wide, cut two seams at both ends and put them in the middle of the rubber. Then, put both ends of the rubber into the flat ring of the fork head of the slingshot frame, everting 2 cm each, and tie the everted part with the inner rubber with nylon rope, leaving a gap, so that the rubber strip and the steel wire in the flat hole can rotate freely, and the slingshot gun is finished.