Skeinforge Speed
From DEMOZENDIUM
Speed is a plugin to set the Feed Rate and Flow Rate.
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Operation
The default 'Activate Speed' checkbox is on. When it is on, the functions described below will work, when it is off, nothing will be done.
Settings
Add Flow Rate
Default: on
When selected, the flow rate will be added to the gcode.
Bridge
Note: The bridge feed/flow setting apply to the entire layer that the bridge is on, not just the bridge itself.
Bridge Feed Rate Multiplier
Default: 1
Defines the ratio of the feed rate (head speed) on the bridge layers over the Feed Rate of the typical non bridge layers.
Bridge Flow Rate Multiplier
Default: 1
Defines the ratio of the flow rate (extruder speed) on the bridge layers over the Flow Rate of the typical non bridge layers.
Duty Cycle
Duty Cycle at Beginning
Default: 1
Defines the duty cycle of the stepper motor PWM by adding an M113 command toward the beginning of the gcode text. If the hardware has the option of using a potentiometer to set the duty cycle, to select the potentiometer option set Duty Cycle at Beginning to an empty string. To turn off the extruder, set the Duty Cycle at Beginning to 0.
A value of 1 will set the extruder motor to full current.
Duty Cycle at Ending
Default: 0
Defines the duty cycle of the stepper motor PWM by adding an M113 command toward the ending of the gcode text. If the hardware has the option of using a potentiometer to set the duty cycle, to select the potentiometer option set Duty Cycle at Beginning to an empty string. To turn off the extruder, set the Duty Cycle at Ending to 0.
A value of 0 will turn off the extruder motor.
Feed Rate
Default: 16 mm/s
Defines the operating feed rate, the speed your printing head moves in XY plane, before any modifiers.
Flow Rate Setting
Default: 210 (pre-Skeinforge 40, see below for details)
Defines the operating flow rate.
The default of 210 is for Skeinforge versions before 50. For Skeinforge 50 and later, set the Flow Rate Setting to the same value as the Feed Rate).
RapMan uses this parameter to define the RPM of the extruder motor. The extruder motor RPM is flow rate / 10 so if your flow rate is 150.0 that will set the extruder stepper to run at 15 RPM, different printers might read this value differently.
Object First Layer
Object First Layer Feed Rate Infill Multiplier
Default: 0.4
Defines the object first layer infill feed rate multiplier. The greater the Object First Layer Feed Rate Infill Multiplier, the thinner the infill (unless you raise Object First Layer Flow Rate Infill Multiplier to match), the lower the Object First Layer Feed Rate Infill Multiplier, the thicker the infill.
Object First Layer Feed Rate Perimeter Multiplier
Default: 0.4
Defines the object first layer perimeter feed rate multiplier. The greater the Object First Layer Feed Rate Perimeter Multiplier, the thinner the edge (unless you raise Object First Layer Flow Rate Perimeter Multiplier to match), the lower the Object First Layer Feed Rate Perimeter Multiplier, the thicker the edge.
Object First Layer Flow Rate Infill Multiplier
Default: 0.4
Defines the object first layer infill flow rate multiplier. The greater the Object First Layer Flow Rate Infill Multiplier, the thicker the infill, the lower the Object First Layer Flow Rate Infill Multiplier, the thinner the infill.
Object First Layer Flow Rate Perimeter Multiplier
Default: 0.4
Defines the object first layer perimeter flow rate multiplier. The greater the Object First Layer Flow Rate Perimeter Multiplier, the thicker the edge, the lower the Object First Layer Flow Rate Perimeter Multiplier, the thinner the edge.
Orbital Feed Rate over Operating Feed Rate
Default: 0.5
Defines the speed when the head is orbiting compared to the operating extruder speed. If you want the orbit to be very short, set the Orbital Feed Rate over Operating Feed Rate setting to a low value like 0.1.
Maximum Z Feed Rate
Default: 1 mm/s
Defines the maximum speed of the Z axis. If the Limit plugin is activated, it will limit the maximum speed of the tool head in the Z direction.
Perimeter
To have higher build quality on the outside at the expense of slower build speed, a typical setting for the Perimeter Feed Rate Multiplier would be 0.5. To go along with that, if you are using a speed controlled extruder like a stepper extruder, the Perimeter Flow Rate Multiplier should also be 0.5.
This info may be outdated as these settings no longer exist. A stepper motor is the best way of driving the extruder; however, if you are stuck with a DC motor extruder using Pulse Width Modulation to control the speed, then you'll probably need a slightly higher ratio because there is a minimum voltage 'Flow Rate PWM Setting' required for the extruder motor to turn. The flow rate PWM ratio would be determined by trial and error, with the first trial being: Perimeter Flow Rate over Operating Flow Rate ~ Perimeter Feed Rate over Operating Feed Rate * (Flow Rate PWM Setting - Minimum Flow Rate PWM Setting) + Minimum Flow Rate PWM Setting
Perimeter Feed Rate Multiplier
Default: 1
Defines the ratio of the feed rate of the perimeter (outside shell) over the feed rate of the infill. If you for example set this to 0.8 you will have a "stronger" outside edge than inside extrusion as the outside edge will be printed slower hence better lamination will occur and more filament will be placed there.
Perimeter Flow Rate Multiplier
Default: 1
Defines the ratio of the flow rate of the perimeter (outside shell) over the flow rate of the infill. If you want same thickness of the perimeter but better lamination you need to compensate for the slower feed rate by slowing down the flow rate, but all combinations are possible for different results.
Travel Feed Rate
Default: 16 mm/s
Defines the feed rate when the extruder is off (not printing). The Travel Feed Rate could be set as high as the extruder can be moved, it is not limited by the maximum extrusion rate.