Diameter former Cone Nr. 3

Diameter former

This tool is designed to achieve better mutual size tolerance between the inner diameter of the blower tube and the diameter of the plastic cone. If the size of the cone used is closer to the diameter of the tube, the results of the arrow grouping are also closer. This common tolerance cannot be achieved during the production of the components themselves. There will always be differences from production. The differences are mainly in the size of the inner diameter of the tube used. These tubes have different tolerances from production. This can affect the accuracy of the arrow grouping, especially at longer distances. Using the diameter former, you can achieve better tightness of the arrow caps used.

This set also includes a former to reduce the outer diameter of the cone. It is also used to pull down the end edge of the cone when a slight edge is created during the production of the plastic cone. By pulling it through the holes marked (1 smallest, 2 medium, 3 largest), the edge will be aligned. When forming, always start from size 3 and gradually reduce

The former consists of 4 parts

Supporting part

Main former with cone shape marking No. 1, No. 3

Forming part

Reducing device

Forming procedure

Insert the cone into the main former. The main former must be the same as the cone shape you are using. It cannot be used for another shape.

From the other side, attach the forming part with a steel ball. By turning the forming part and applying slight pressure to the former, the edge of the cone will expand. This will increase the diameter. After forming, test the tightness of the arrow on the end side of your blower. The arrow should slide easily in the tube.

If the cone size is too tight, use an oval reducing device. This will reduce the edge of the cone by stretching it. Here, always start at the hole marked No. 3 - the largest diameter and if the size is still large, proceed to No. 2 and No. 1