Difference between revisions of "IR Probe Firmware Setup (Smoothieware)"
(Initial info) |
|||
Line 7: | Line 7: | ||
The IR probe can be connected to any of the Smoothieboard's three-pin endstop connectors (though be sure to take note of polarity). We will be connecting the probe to the Z-Max connector in this guide, which is pin P1.29. | The IR probe can be connected to any of the Smoothieboard's three-pin endstop connectors (though be sure to take note of polarity). We will be connecting the probe to the Z-Max connector in this guide, which is pin P1.29. | ||
We need to configure the pin as a non-inverting input with a pullup. This is done like so: | First we need to undefine the pin as being used for the endstop. If you're using a different pin that isn't assigned to an endstop, you can skip this step: | ||
gamma_max_endstop nc #normally 1.29. Change to nc to prevent conflict with probe below | |||
We then need to configure the pin as a non-inverting input with a pullup. This is done like so: | |||
zprobe.enable true # set to true to enable a zprobe | zprobe.enable true # set to true to enable a zprobe | ||
Line 16: | Line 20: | ||
zprobe.probe_height 5 # how much above bed to start probe NB only needed for G32 on delta | zprobe.probe_height 5 # how much above bed to start probe NB only needed for G32 on delta | ||
zprobe.return_feedrate 0 # feedrate after a probe, default 0 is double of slow_feedrate (mm/s) | zprobe.return_feedrate 0 # feedrate after a probe, default 0 is double of slow_feedrate (mm/s) | ||
This is all we need to do to configure the pins! The next step is to configure how the firmware will use the probe for bed levelling. |
Revision as of 02:32, 27 January 2017
Smoothieware has a lot of options relating to Z probing and bed level compensation. The best place to get detailed information on Smoothieware's settings is the Z-Probe page here.
Pin Configuration
The IR probe can be connected to any of the Smoothieboard's three-pin endstop connectors (though be sure to take note of polarity). We will be connecting the probe to the Z-Max connector in this guide, which is pin P1.29.
First we need to undefine the pin as being used for the endstop. If you're using a different pin that isn't assigned to an endstop, you can skip this step:
gamma_max_endstop nc #normally 1.29. Change to nc to prevent conflict with probe below
We then need to configure the pin as a non-inverting input with a pullup. This is done like so:
zprobe.enable true # set to true to enable a zprobe zprobe.probe_pin 1.29^ # pin probe is attached to zprobe.slow_feedrate 5 # mm/sec probe feed rate #zprobe.debounce_ms 1 # set if noisy zprobe.fast_feedrate 100 # move feedrate zprobe.probe_height 5 # how much above bed to start probe NB only needed for G32 on delta zprobe.return_feedrate 0 # feedrate after a probe, default 0 is double of slow_feedrate (mm/s)
This is all we need to do to configure the pins! The next step is to configure how the firmware will use the probe for bed levelling.