QtDragon probing and tool touchoffs, again.....

    def probe_tool_with_toolsetter(self):
        try:
            # basic sanity checks
            for test in('ts_x','ts_y','ts_z','ts_max','ts_diam','tool_probe_height', 'tool_block_height'):
                if self['data_{}'.format(test)] is None:
                    return'Missing toolsetter setting: {}'.format(test)
            if self.data_tool_diameter is None or self.data_tool_number is None:
                return 'No tool diameter found'

            # see if we need to offset for tool diameter
            # if so see if there is enough room in X axis limits
            if self.data_tool_diameter > self.data_ts_diam:
                # if close to edge of machine X, offset in the opposite direction
                xplimit = float(INFO.INI.find('AXIS_X','MAX_LIMIT'))
                xmlimit = float(INFO.INI.find('AXIS_X','MIN_LIMIT'))
                if not (self.data_tool_diameter/2+self.data_ts_x) > xplimit:
                    Xoffset = self.data_tool_diameter/2
                elif not (self.data_ts_x -(self.data_tool_diameter/2)) < xmlimit:
                    Xoffset = 0-self.data_tool_diameter/2
                else:
                    return 'cannot offset enough in X for tool diameter'
            else: Xoffset = 0

            # offset X by tool radius (from toolfile) if required
            # probe Z
            # raise Z clear
            # move back X by tool radius if required

            cmdList = []
            cmdList.append('F{}'.format(self.data_rapid_vel))
            cmdList.append('G49')
            cmdList.append('G91')
            # should start spindle in proper direction/speed here..
            cmdList.append('G1 X{}'.format(Xoffset))
            cmdList.append('G38.2 Z-{} F{}'.format(self.data_ts_max,self.data_search_vel))
            cmdList.append('G1 Z{} F{}'.format(self.data_latch_return_dist, self.data_rapid_vel))
            cmdList.append('F{}'.format(self.data_probe_vel))
            cmdList.append('G38.2 Z-{}'.format(self.data_latch_return_dist*1.2))
            cmdList.append('#<touch_result> = #5063')
            # adjustment to G53 number
            cmdList.append('#<zworkoffset> = [#[5203 + #5220 *20] + #5213 * #5210]')
            cmdList.append('G10 L1 P#5400  Z[#5063 + #<zworkoffset> - {}]'.format( self.data_tool_probe_height))
            cmdList.append('G1 Z{} F{}'.format(self.data_z_clearance, self.data_rapid_vel))
            cmdList.append('G1 X{}'.format(-Xoffset))
            cmdList.append('G90')
            cmdList.append('G43')
            # call each command - if fail report the error and gcode command
            rtn = self.CALL_MDI_LIST(cmdList)
            if rtn != 1:
                return rtn
            h = STATUS.get_probed_position()[2]
            self.status_z = h
            p = self.data_tool_probe_height
            toffset = (h-p)
            self.add_history('''ToolSetter:
                                    Calculated Tool Length Z: {:.4f}
                                    Setter Height: {:.4f}
                                    Probed Position: {:.4f}'''.format(toffset, p, h ))
            # report success
            return 1
        except Exception as e:
            return '{}'.format(e)