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Programming CNC Machines With G-Codes
Ever since the industrial revolution started, the demand to create precise devices and products is an important factor in large scale manufacturing. Belts, anchoring screws, Drills and all movable parts needed to create other items in the assembly line should all be exact and compatible, thus extra care must be drawn in order to ensure that all moving parts match perfectly. Computer Numerical Controlled programming has become an extremely important part of this procedure.
Computer Numerical Controlled Machines are useless without any programming. CNC’s rely on pure hard codes in order to execute commands that the Machine Operator wants to do, therefore not only is it needed to discover the mechanics of the whole Computer Numerical Controlled Machine but it's also at the utmost importance that the Machine operator understands how to communicate with the machine, and that is by using G-codes.
Preparatory code/ functions or a lot commonly called as G-codes are functions in the Computer Numerical Control programming language. The G-codes job is to manage the position of the tool in addition to control the step by step instructions during the actual work. Basically the G-codes are the most important part of the Computer Statistical Control Programming algorithm.
There are other codes involved in the programming of CNC’s such as M-codes that manages the equipment, T-codes for managing the tools, and F-codes for the tool feed and tool speed controls. Many of these codes are created in a Computer Aided Manufacturing (CAM) software program.
G codes as well as the others use the RS-274D as the recommended standard for the {Computer Numerical Controlled Machines}. This particular standard was developed by the Electronic Industry association during the 1960’s. These types of standards provide a basis for the creation of Computer Numerical Controlled Applications.
First designs of these requirements came from punched paper videos as the medium standard for data interchange, but now ASCII character bit patterns are the standard for the representation.
G-Codes
Lets discuss the g-codes further, as what I possess said earlier G- codes amount to only a part of the Computer Statistical Control Program, in the entire programming algorithm, they are denoted through the letter G, Basically it is a code telling the machine what forms of actions to perform in a step-by-step basis, examples of these measures would be rapid move, managed feed moves that would lose interest holes, a work piece cut routed to a specific dimension, change a pallet, and set a tool information such as counteract.
After creating each part of the codes, the algorithm is actually compiled in the Computer Assisted Manufacturing (CAM) software. The CAM software basically make use of translators called post processors in order to output the code enhanced for a certain machine type. Often times, post-processors are often used to allow customers to enable further customization.
G-codes can also be used to create outputs for Computer Aided Design systems used to design printed circuit boards (PCB). Any software must be customized for each type of machine tool that it'll be used to program. Some G-codes tend to be written by hand for volume production jobs.
Some {Computer Numerical Controlled Machines} use conversational programming. Conversational programming is an easier way to plan CNC machines because it is more “user friendly” because it uses a wizard like program that hides the G-codes in to plain view. Some Well-liked examples of this kind of CNC machines are the Southwestern Industries’ Proto TRAK, Mazak’s Mazatrol, and Mori Seiki’s CAPS speaking software. Check out http://cncservices.org/ for more details.
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Solder Stencils via Electronic Craft Cutter (MAKE Magazine)
Spotted in the MAKE Flickr pool, some interesting process shots from user
Shigeru Kanemoto, who's used a Craft ROBO brand paper-cutting robot to prepare
a stencil for applying solder paste to a PCB in preparation for SMT assembly.
Uppermost, the stencil freshly cut; immediately above, solder paste applied.
Cool idea, with a few more shots in Shigeru-san's photostream.
Clear Automation PCB Assembly
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