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The easiest way to make a pipe bending tool is as follows:

Manual pipe bender for thin-walled pipes.

1, screw. Screw can be bought in hardware store, and of course it can also be machined by lathe. There are no strict restrictions on the diameter. If the elbow is slightly larger, you can choose a screw with a larger diameter, mainly depending on the stress on your elbow.

2, the hand frame. The hand frame is very simple, just weld it with flat iron.

3, screws. Standard hexagon nuts are generally used for screws, and their left and right sides are mainly used for adjusting screws.

4, slider. The slider is also welded with flat iron. Both sides of the slider are provided with edge guards for fixing and sliding in the hand frame.

5. Press the wheel. The pressure wheel can be machined by lathe, or it can be cut by finding round steel with suitable diameter in the steel market.

6. layering. Layering is processed by planer or wire cutting. This is also very easy to handle, and it can be processed by finding a mechanical processing factory. However, the dimension of the bead groove must be the same as the diameter of the pipe to be bent.

7. mold. Mould and batten are corresponding and can be processed by lathe. However, there must be steps when the mold lathe is processed, and the steps are mainly for the layering to be stuck in. The inner groove of the die is also the same as the diameter of the pipe to be bent. The following figure shows the die details of the manual pipe bender.

8. bearing. Bearing hardware stores can be purchased in stock, which can reduce the friction in the bending process. If the batch is very small, or the pipe is very small directly, bearings may not be needed.

9. Pipe clamp. The pipe clamp is made of iron sheet and pressed into a semi-arc shape. Used for fixing steel pipes when bending pipes.

10, base. The base is used to fix the mold. There is no special requirement for this, as long as it can be repaired.