g1 [Smoothieware]

Differences

This shows you the differences between two versions of the page.

--- g1 [2017/01/25 14:53]
arthur
+++ g1 [2019/05/13 21:04] (current)
arthur [Parameters]
@@ Line 11: / Line 11: @@
 On 3D printers, it is also called an "extrusion" move.
-G1's evil twin is [[[G0]]], which means "move while not activating the tool".
+G1's evil twin is [[G0]], which means "move while not activating the tool".
 === Format
@@ Line 17: / Line 17: @@
 The command is used as such :
-[[code]]
+<code>
 G1 X10 Y20 F30
-[[/code]]
+</code>
 Which means : move to X position 10, Y position 20, at a speed of 30 millimeters/minute
@@ Line 26: / Line 26: @@
 ||~ Parameter ||~ Usage ||~ Example ||
-|| {{X}} || Move to this position in the X axis || G1 X10 ||
+|| <kbd>X</kbd> || Move to this position in the X axis || G1 X10 ||
-|| {{Y}} || Move to this position in the Y axis || G1 Y10 ||
+|| <kbd>Y</kbd> || Move to this position in the Y axis || G1 Y10 ||
-|| {{Z}} || Move to this position in the Z axis || G1 Z10 ||
+|| <kbd>Z</kbd> || Move to this position in the Z axis || G1 Z10 ||
-|| {{A}} || Move to this position in the A axis || G1 A10 ||
+|| <kbd>A</kbd> || Move to this position in the A axis || G1 A10 ||
-|| {{B}} || Move to this position in the B axis || G1 B10 ||
+|| <kbd>B</kbd> || Move to this position in the B axis || G1 B10 ||
-|| {{C}} || Move to this position in the C axis || G1 C10 ||
+|| <kbd>C</kbd> || Move to this position in the C axis || G1 C10 ||
-|| {{E}} || Move to this position in the E ( extruder ) axis || G1 E10 ||
+|| <kbd>E</kbd> || Move to this position in the E ( extruder ) axis || G1 E10 ||
-|| {{F}} || Move at this speed in millimeters/minute || G1 Z10 F100 ||
+|| <kbd>F</kbd> || Move at this speed in millimeters/minute || G1 Z10 F100 ||
-|| {{S}} || Laser power, {{S1}} is 100%, {{S0}} is 0% || G1 X10 S0.5 ||
+|| <kbd>S</kbd> || Laser power, <kbd>S1</kbd> is 100%, <kbd>S0</kbd> is 0% || G1 X10 S0.5 ||
+<callout type="warning" icon="true" title="Extruder moves and scientific notation">
+If you write this Gcode :
+<code> G1X100E100 </code>
+You want Smoothie to interpret it as :
+<code>
+G1 : move ...
+X10 : ... by 10mm in the X direction ...
+E10 : ... while also feeding the extruder 10mm of extrusion
+</code>
+However Smoothie is going to interpret this as
+<code>
+G1 : move ...
+X10E10 : ... in the X direction by 10E10, which is also 10 to the power of 10, or 10000000000.
+</code>
+The lesson here is : use spaces.
+</callout>
 === Feedrate
-The {{F}} parameter is modal. The speed is remembered and each subsequent command uses it.
+The <kbd>F</kbd> parameter is modal. The speed is remembered and each subsequent command uses it.
 This means if you do :
-[[code]]
+<code>
 G1 X10 F100
 G1 X20
 G1 X30 F200
 G1 X40
-[[/code]]
+</code>
 The first two moves will happen at 100 mm/minute, and the last two moves will happen at 200mm/minute.
-[[div class="bs-callout bs-callout-success"]]
+<callout type="success" icon="true" title=" Independent feedrates">
-==== Independent feedrates
 Note that both G0 and G1 have their own modal feedrates, and setting one doesn't influence the other.
 This means if you do :
-[[code]]
+<code>
 G0 X10 F100
 G1 X20 F200
 G0 X30
-[[/code]]
+</code>
 The third move will actually move at 100 mm/minute as that is the latest feedrate set for G0 moves.
+</callout>
 === Default feedrate
-If you have just started your Smoothieboard and have never sent a {{F}} parameter, your G1 moves will move at the default "feed" feedrate.
+If you have just started your Smoothieboard and have never sent a <kbd>F</kbd> parameter, your G1 moves will move at the default "feed" feedrate.
-This is set in the [http://smoothieware.org/configuring-smoothie configuration file] by setting the {{default_feed_rate}} config option.
+This is set in the [[http://smoothieware.org/configuring-smoothie|configuration file]] by setting the <kbd>default_feed_rate</kbd> config option.
 === Modal use
-The G1 command is modal, if a line doesn't contain any gcode, it is assumed to be a {{G0}} or a {{G1}} command depending on the latest used
+The G1 command is modal, if a line doesn't contain any gcode, it is assumed to be a <kbd>G0</kbd> or a <kbd>G1</kbd> command depending on the latest used
 This means if you do :
-[[code]]
+<code>
 G1 X10
  X20
  Y10
-[[/code]]
+</code>
 It is the same as doing :
-[[code]]
+<code>
 G1 X10
 G1 X20
 G1 Y10
-[[/code]]
+</code>
 Note the space character before each modal line, without that space, Smoothie will not know this is a modal command.
@@ Line 100: / Line 123: @@
 Smoothie is in absolute mode by default.
-You enter absolute mode by sending the [[[G90]]] Gcode, and you enter the relative mode by sending the [[[G91]]] Gcode.
+You enter absolute mode by sending the [[G90]] Gcode, and you enter the relative mode by sending the [[G91]] Gcode.
 In absolute mode, all positions passed to G1 are relative to the 0 position for the current work coordinate.
@@ Line 108: / Line 131: @@
 This means if you do :
-[[code]]
+<code>
 G90
 G1 X10
 G1 X20
-[[/code]]
+</code>
 Smoothie will move to the X position 10, then move to the X position 20, relative to the origin.
@@ Line 118: / Line 141: @@
 But if you do :
-[[code]]
+<code>
 G91
 G1 X10
 G1 X20
-[[/code]]
+</code>
 Smoothie will move 10 millimeters relative to the current position, then move 20 millimeters further away from that new position ( moving 30 millimeters total ).
@@ Line 129: / Line 152: @@
 These resources are used as references for Gcode :
-* [http://linuxcnc.org/docs/html/gcode.html LinuxCNC Gcode list]
+* [[http://linuxcnc.org/docs/html/gcode.html|LinuxCNC Gcode list]]
-* [http://reprap.org/wiki/G-code Reprap Gcode list]
+* [[http://reprap.org/wiki/G-code|Reprap Gcode list]]