In the example drawing, the X and Y locations generated will always be positive values relative to the G5X system, even though the Y locations are negative in Machine Coordinates. We export our cutting program relative to a local origin, and then tell the machine where that point exists. This work-offset allows us to define a relative position anywhere on the table to cut our parts. There is also another coordinate drawn as G5X. In the image above, we are looking down on the table along the Z-Axis. Here is a simplified drawing to narrow our focus. The machine can move to any position inside the work volumeand the distance from the current location to the Home point describes the Machine Coordinates MC. We can combine the directions of motion together with a reference point known as Home.

There are stickers identifying each axis and their direction attached to the covers of the machine as a quick reference during operation. An axis is a direction of motion that the machine can travel along. This cable provides control and feedback signals that allow the machine to ask for the plasma arc to turn on, and to measure the cutting voltage. The control panel is connected to the plasma power supply via the machine interface cable. These are wearing components and will be periodically replaced. Plasma Consumables - The components that mount to the torch such as electrodes, shields, and nozzles. The plasma work lead is bolted to the machine bonding bar, and the work clamp from the bonding bar must be connected directly to the work piece being cut. Commonly referred to as the plasma ground. Plasma Work Lead - The second half of the plasma electrical circuit. Combined with the work lead, it creates an electrical circuit that allows us to cut conductive materials such as steel, stainless steel, and aluminum. Plasma Power Supply - The box that the torch and work leads connect to that converts wall power to the current required to cut metal. These programs are made up of moves to numerically defined locations, coupled with actions M-Codes like turning on a plasma torch. With this foundation in place, we can then explore the software workflow in later sections. This section is intended to introduce the major working parts, familiarize you with the vocabulary used to describe an automated CNC plasma, and introduce the plasma cutting process.

Code sinpit for sheetcam