COMPUTER NUMERICAL CONTROL PROGRAMMING BASICS phần 3 pdf

... length compensation cancel G84 Canned turning cycle (**) 03 G90 Absolute programming 03 G91 Incremental programming (*) - on some machines and controls, these may be G70 (inch) and G71 (metric) (**) ... into categories, although several codes may control the same type of operations such as M 03, M04, and M05 which control the machine tool spindle. • M 03 turns the spindle on clock...

Ngày tải lên: 08/08/2014, 12:22

... Point Systems Incremental Absolute 7 The term numerical control is a widely accepted and commonly used term in the machine tool industry. Numerical control (NC) enables an operator to communicate ... tool down or into the work- piece. In incremental programming, the G91 command indicates to the computer and MCU (Machine Control Unit) that programming is in the incremental mode....

Ngày tải lên: 08/08/2014, 12:22

... < 3; x++) { glBegin(GL_QUAD_STRIP); for (int z = 0; z < 4; z++) { glVertex3f(x, 0.0, z); glVertex3f((x+1.0), 0.0, z); } glEnd(); } } Handling Primitives 63 03 BOGL_GP CH 03 3/1/04 2 :34 PM ... screenshot of this example in Figure 3. 12. Chapter 3 ■ OpenGL States and Primitives60 Figure 3. 11 A polygon can be an arbitrary number of vertices. 03 BOGL_GP CH 03 3/1/04 2 :34 PM P...

Ngày tải lên: 05/08/2014, 10:20

... ~/.subversion/auth/svn.simple/ 5671adf2865e267db74f09ba6f872c28 38 93ed123b39500bca8a0b382 839 198e 5c3c2296 834 7b390f349ff340196ed39 $ cat ~/.subversion/auth/svn.simple/5671adf2865e267db74f09ba6f872c28 K 8 username V 3 joe K 8 password V ... /usr/local/svn/repos Path: /project2/images/banana.jpg UUID Token: opaquelocktoken:c32b4d88-e8fb- 231 0-abb3-153ff1 236 9 23 Owner: frank Created:...

Ngày tải lên: 06/08/2014, 09:20

... disturbance. Figure 4.2 ~3 shows another common system where cascade control is used. The reactor temperature controller is the primary controller; the jacket temperature con- troller is the secondary controller. ... mass-flow-rate computer, the mass flow rate can be controlled as sketched in Fig. 4.3a. Another example is shown in Fig. 4.3b, where a hot oil stream is used to reboil a...

Ngày tải lên: 24/07/2014, 07:21