yes, the compound is set at EXACTLY 30*, not "around 30*. Then the tool, bit is ground so you have an EXACTLY 60* point. To make sure it is exact, you need a threading tool setting gauge. You also need to make sure the cutter is just a ew thousands below the center o your part. Too high is bad, and too low is bad. I you don't have a threading dial, the safest way to thread is to stop the lathe as you near the end of the cut. Back off the Z axis and run the lathe in reverse while leaving the threading lever engaged. Doing this will make sure you don't lose your starting point. Never feed the Z past your Zero reference to increase a cut (you did zero out the Z and compound at the start of your thread cutting, right?), ALWAYS feed in with the compound. |