Grizzly T25688 owner manual Creating Cylinders, To create a cylinder

Creating Cylinders

This slip roll can be used to easily and accurately create cylinders

If you know the diameter of the cylinder you want to create, use the formula below to calculate the length of material needed.

C=πD

C=Circumference

(Length of Material Needed)

π=Pi (Approximately 3.142)

d=Diameter

Example: Suppose you want to create a 6" diam- eter cylinder. You would use the above formula as follows:

C=πD

C=(3.142) x 6"

C=18.852"

The result of 18.852" indicates that you need to start with a piece of sheet metal that is approxi- mately 18.852" in length in order to create a 6" diameter cylinder.

You can use the slip roll to create a bend with the correct radius so that the two ends meet, forming a 6" diameter cylinder (see Figure 18).

C=D

C=(3.142) x 6"

C=18.852

6" Dia.

Workpiece

18.852" Circumference

Figure 18. Calculating circumference example.

Model T25688 (Mfg. Since 09/13)

Once you have the necessary length workpiece, follow the steps below to create the cylinder.

Note: The method for creating a specific radius is

atrial-and-error process. Due to the many varia- tions among metal workpieces, no single position- ing will create the same curve on all materials. We recommend using scrap pieces the same dimen- sions and material as the final workpiece until the desired curve is achieved.

To create a cylinder:

1.Place the workpiece between the top and bottom rollers, as shown in Figure 19. Turn the thickness adjustment knobs to lift the bottom roller until the workpiece is held snug between the top and bottom rollers. Be sure to turn the thickness adjustment knobs equal amounts.

CW

Figure 19. Raising bottom roller.

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