Duet 3 w/o SBC and RRF3 multiple probe detection

warpster

I have a remote python script running on my PC that aligns my tools on my TC. It first aligns the x an y and then aligns the Z in order for all tools. It may be run in a situation where the Z alignment is not supported (if no K1 sensor) so I need a way to determine in python whether the printer has the second K1 Z probe or not. My printer responds as if it were a Duet 2 running RRF3 so I need to use /rr_status?type=2 but that only returns info on one probe???? K0 but not K1 for some reason. I can't seem to get a G31 K1 to work....anyone have a python snippet to execute a G31 K1 through the DuetWebApi? I've been trying to get this code to work to no avail. Or if there is some other way to determine if the probe exists or not....

    def getTriggerHeight(self):
        _errCode = 0
        _errMsg = ''
        triggerHeight = 0
        if (self.pt == 2):
            if not self._rrf2:
                #RRF 3 on a Duet Ethernet/Wifi board, apply buffer checking
                sessionURL = (f'{self._base_url}'+'/rr_connect?password=reprap')
                r = self.requests.get(sessionURL,timeout=2)
                buffer_size = 0
                while buffer_size < 150:
                    bufferURL = (f'{self._base_url}'+'/rr_gcode')
                    buffer_request = self.requests.get(bufferURL,timeout=2)
                    try:
                        buffer_response = buffer_request.json()
                        buffer_size = int(buffer_response['buff'])
                    except:
                        buffer_size = 149
                    if buffer_size < 150:
                        logger.debug('Buffer low - adding 0.6s delay before next call: ' + str(buffer_size))
                        time.sleep(0.6)
            URL=(f'{self._base_url}'+'/rr_gcode?gcode=G31')
            r = self.requests.get(URL,timeout=2)
            replyURL = (f'{self._base_url}'+'/rr_reply')
            reply = self.requests.get(replyURL,timeout=2)
            # Reply is of the format:
            # "Z probe 0: current reading 0, threshold 500, trigger height 0.000, offsets X0.0 Y0.0 U0.0"
            start = reply.find('trigger height')
            triggerHeight = reply[start+15:]
            triggerHeight = float(triggerHeight[:triggerHeight.find(',')])
            if not self._rrf2:
                #RRF 3 on a Duet Ethernet/Wifi board, apply buffer checking
                endsessionURL = (f'{self._base_url}'+'/rr_disconnect')
                r2 = self.requests.get(endsessionURL,timeout=2)

warpster

Well I did find something that works
{ip address of printer}/rr_model?key=sensors.probes