COMPUTER NUMERICAL CONTROL PROGRAMMING BASICS phần 4 potx

... teaching the basics of CNC lathe programming. It uses the same standard G and M codes as the larger machines, can be programmed in inch or metric dimensions in both absolute and incremental programming. ... education and technical training. The Novaturn is controlled via a standard keyboard or Desk-Top Tutor connected to a PC. (Denford Inc.) 34 Milling and Drilling Programming Program...

Ngày tải lên: 08/08/2014, 12:22

... Steve F. COMPUTER Numerical Control Programming Basics / Steve Krar, Arthur Gill. p. cm. ISBN 0-07-023333-0 1. Machine Tools - Numerical Control. I. Gill, Arthur, date. II Title. TJ1189, K 74 1999 ... 30 CNC Programming Hints — Milling 32 Milling and Drilling Programming 34 CNC Programming Hints – Turning 38 Fanuc Compatible Programming 39 Turning Programming 40 2 C...

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

... G43 Tool length compensation positive (+) direction 08 G 44 Tool length compensation minus (-) direction 08 G49 Tool length compensation cancel G 84 Canned turning cycle (**) 03 G90 Absolute programming 03 ... (mm) G 24 Radius programming (**) 00 G28 Return to reference point 00 G29 Return from reference point G32 Thread cutting (**) 07 G40 Cutter compensation cancel 07 G41 Cutter comp...

Ngày tải lên: 08/08/2014, 12:22

... .925 diameter. 40 Turning Programming Programming Sequence % (rewind stop code/parity check) 2001 (program number) N05 G20 G90 G40 G20 inch data input. G90 absolute positioning mode G40 cancels tool ... York, New York10016 -40 78 FAX: 212- 545 -8327 induspress@aol.com Please mail, fax or e-mail your request to: 39 Fanuc Compatible Programming The programming for the Fanuc compatible...

Ngày tải lên: 08/08/2014, 12:22

... cutting tools and work-holding devices required, and where they are to be located. Computer Numerical Control Programming Basics Steve Krar Arthur Gill This book is not intended for sale under any circumstances. INDUSTRIAL ... the column. In absolute programming, the G90 command indicates to the computer and MCU that the programming is in the absolute mode. Point-to-Point or Co...

Ngày tải lên: 25/12/2013, 05:16

... Steve F. COMPUTER Numerical Control Programming Basics / Steve Krar, Arthur Gill. p. cm. ISBN 0-07-023333-0 1. Machine Tools - Numerical Control. I. Gill, Arthur, date. II Title. TJ1189, K 74 1999 ... Turning Centers 30 CNC Programming Hints — Milling 32 Milling and Drilling Programming 34 CNC Programming Hints – Turning 38 Fanuc Compatible Programming 39 Turning Progr...

Ngày tải lên: 27/06/2014, 14:20

... DRAM Controllers If your embedded system includes DRAM, there is probably a DRAM controller on board (or on-chip) as well. The DRAM controller is an extra piece of ... initialization module. Almost all DRAM controllers require a short initialization sequence that consists of one or more setup commands. The setup commands tell the controller about the hardware interface ... the databooks that...

Ngày tải lên: 05/08/2014, 10:21

... of standard UI controls, from buttons to lists to control bars. Figure 7-12. Application control bars docked so that they don’t scroll with the rest of the content List-Based Controls | 137 <state ... Figure 7-5 shows the list-based controls. The most fundamental of all the list-based controls is the list. Such lists are vertically scrolling, single-column controls. Horizontal lists ar...

Ngày tải lên: 06/08/2014, 08:22

... (Chapter 23). This breaks down the user stories into smaller development tasks, each task is about 1 -4 days of development effort. Iteration planning is started at the beginning of an iteration and ... them short. As any paddler knows, it’s better to kayak the Rogue River than Niagara Falls. 50 54 programmers are in a much better position to guess than anyone else. So estimating is a tech...

Ngày tải lên: 06/08/2014, 08:22