Differences
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grbl-mode [2017/01/25 22:59] arthur |
grbl-mode [2018/05/24 13:55] 146.90.249.51 |
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| = Using Smoothie in grbl_mode | = Using Smoothie in grbl_mode | ||
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| + | (Or CNC mode) | ||
| Smoothie's main job is to interpret G-code and to convert it into movement and actions. | Smoothie's main job is to interpret G-code and to convert it into movement and actions. | ||
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| Smoothie supports two different G-code "dialects" : | Smoothie supports two different G-code "dialects" : | ||
| - | * The "reprap" dialect, for 3D printing | + | * The "reprap" dialect, for 3D printing (NOT NIST compliant) |
| - | * The "grbl" dialect, for CNC milling | + | * The "grbl" dialect, for CNC milling (Generally NIST compliant) |
| The "grbl" dialect is the closest to the "normal" Gcode standard ( NIST ), and is adequate and useful for CNC milling. | The "grbl" dialect is the closest to the "normal" Gcode standard ( NIST ), and is adequate and useful for CNC milling. | ||
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| However, more CNC oriented software can also be used to control lasers ( they are virtually similar to a CNC mill with a very thin tool and no Z axis ), this is the case for example of [[bcnc]]. | However, more CNC oriented software can also be used to control lasers ( they are virtually similar to a CNC mill with a very thin tool and no Z axis ), this is the case for example of [[bcnc]]. | ||
| </callout> | </callout> | ||
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| + | Typical differences between 3d mode and CNC mode are:- | ||
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| + | 1. Error messages are different | ||
| + | 2. G28 goes to park position and is NOT home, $H homes in CNC mode | ||
| + | 3. Many GCodes may be differently interpreted in CNC mode than in 3D mode, please check your gcode references (Linuxcnc has a good GCode reference, do not use the reprap gcode reference for CNC mode) | ||
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| + | **NOTE** you cannot generally use pronterface to control CNC/grbl mode, as Pronterface is for 3D printers and uses a different dialect of gcode, it also does not allow you to send commands such as $H to home. It also tends to truncate commands like G28.2 by not sending the .2 part. | ||
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