Southbend SB1053 owner manual Setting Feed Rate, Example Power Feed Rate of 0.18mm/rev

For Machines Mfg. Since 3/11 O P E R A T I O N 16-Speed Gearhead Lathe

Feed Direction Knob: Changes power feed direction (see Figure 80).

The advantage of this knob is that you can quickly reverse power feed direction while the spindle is rotating—without having to turn the lathe off, wait until the spindle is stopped, then use the feed direction lever on the headstock.

Depending on the combined configuration of the feed direction lever on the headstock and the feed direction knob on the apron, the actual direction of power feed may be different from the printed indicators on the machine!

Setting Feed Rate

The feed rate chart displays the settings for the headstock feed controls for metric and inch feed rates (see Figure 81).

Feed Rate

Chart

Figure 81. Power feed rate chart.

Using the controls on the lathe, follow along with the example below to better understand how to set the lathe for the desired power feed rate.

Example: Power Feed Rate of 0.18mm/rev

1.Make sure the end gears are in the standard configuration, which is applicable for general feed operations (refer to End Gears on the Page 56 for detailed instructions).

2.Locate the line in the feed rate chart that lists the setting for 0.18mm of feed per revolution of the spindle, as illustrated in Figure 82.

mm		in.
.050	LCT1W	.002
.055	LCT2W	.0022
.065	LCT4W	.003
.085	LCT8W	.0033
.10	LCS2W	.004
.13	LCS4W	.005
.18	LCS8W	.007

Figure 82. Relationships between feed rate chart and

headstock feed controls.

-55-