Search Results
Showing 291 – 300 of 300 results
Machining centers traditionally have three linear axes—X, Y and Z. If the machine is equipped with additional axes, they are usually rotary axes (A, B and/or C).
Backlash is any non-movement that occurs during axis reversals. Say, for instance, the X axis is commanded to move 1 inch in the positive direction.
The most basic application for mirror image is when machining left and right hand workpieces. Say you want to set up and run 500 of one hand, tear down, and then set up and run 500 of the opposite hand.
Most turning center users use wear offsets for the purpose of holding size over the course of a production run. And with most of the tools used on turning centers (turning tools, boring bars, grooving tools, among others), all production run sizing should be done with wear offsets.
Almost all current model CNC machine tools have a special reference position. For machines having Fanuc or Fanuc-compatible controls, this special position is called the zero return position.
The dwell command (G04 for most controls) will cause axis motion to pause for a specified period. The period is commonly specified in seconds.
It is common to machine several identical workpiece attributes from within a single program. Consider the four identical circular counter-bored holes that must be milled in the workpiece shown in Figure 1.
You know that machining centers have tool length compensation, cutter radius compensation and fixture offsets. Turning centers have geometry offsets, wear offsets and tool nose radius compensation.
In my CNC courses, I always ask how many people have access to the Internet. It used to be (as recently as last year) that only a small percentage of hands would go up.
The cutting tools in your turning centers change on a regular basis. To minimize tool change time during setups, many setup people will simply load the tools required for the new job and leave tools in the turret from the last job as long as they don't interfere with the new job.