cncOps.py

#######################################################
# profile milling function
def profile(curve_name, profileparams,startparams):
    feedrate_hv(profileparams['verticalfeedrate'],profileparams['horizontalfeedrate'])
    side = profileparams['side']
    tool_diameter = profileparams['tooldiameter']
    offset_extra = profileparams['offset_extra']
    roll_radius = profileparams['roll_radius']
    roll_on = profileparams['roll_on']
    roll_off = profileparams['roll_off']
    rapid_safety_space = profileparams['rapid_safety_space']
    clearance = profileparams['clearance']
    start_depth = profileparams['start_depth']
    step_down = profileparams['step_down']
    final_depth = profileparams['final_depth']
    extend_at_start = profileparams['extend_at_start']
    extend_at_end = profileparams['extend_at_end']
    lead_in_line_len = profileparams['lead_in_line_len']
    lead_out_line_len = profileparams['lead_out_line_len']

    if startparams['startpt']:
        kurve_funcs.make_smaller( curve_name, start = area.Point(startparams['startptX'] ,startparams['startptY']))

    kurve_funcs.profile(curve_name, side, tool_diameter/2, offset_extra, roll_radius, roll_on, roll_off, rapid_safety_space, clearance, start_depth, step_down, final_depth,extend_at_start,extend_at_end,lead_in_line_len,lead_out_line_len )



#######################################################
# drilling function
def drillholes(holeList,paramaters,keepdrilling=False):
    feedrate_hv(paramaters['verticalfeedrate'],paramaters['horizontalfeedrate'])
    #x, y = holeList
    z=0
    depth=paramaters['depth']
    standoff=paramaters['standoff']
    dwell=paramaters['dwell']
    peck_depth=paramaters['peck_depth']
    retract_mode=paramaters['retract_mode']
    spindle_mode=paramaters['spindle_mode']
    for i in holeList:
        x,y = i[0],i[1]
        drill(x, y, z, depth, standoff, dwell, peck_depth, retract_mode, spindle_mode)
    if keepdrilling:
        pass
    else:
        end_canned_cycle()

#######################################################
# helical hole cutting

#use the next function for cutting out round holes -ie strap button holes
from math import fabs
def helical_hole(xPos, yPos, dia,  final_depth, clearance, step_down, step_over, tool_dia, start_depth):
    '''
    helical bore routine - no cutter comp
    '''
    if (tool_dia > dia):
        raise "tool wider than inner bore diameter"

    if (step_over > fabs(yPos+dia/2.0- tool_dia/2.0)):
        raise "step over too big"
    ydelta_plus = yPos + step_over
    ydelta_minus = yPos - step_over
    rapid(z=clearance)
    rapid(x=xPos,y=yPos-step_over )
    currentDepth = start_depth-step_down
    arc_ccw(x=xPos,y=ydelta_plus,z=(start_depth),i=xPos,j=yPos)
    while currentDepth >= final_depth :
        ydelta = 0.0
        ydelta_plus = yPos + step_over
        ydelta_minus = yPos - step_over
        feed(y= ydelta_plus )
        yPos2 = yPos
        arc_ccw(x=xPos,y=ydelta_minus,z=(currentDepth+step_down/2.0),i=xPos,j=yPos2)
        arc_ccw(x=xPos,y=ydelta_plus,z=(currentDepth),i=xPos,j=yPos)
        while ydelta < ((dia/2.0 - tool_dia/2.0)-step_over):

            arc_ccw(x=xPos,y=ydelta_minus,i=xPos,j=yPos2)
            arc_ccw(x=xPos,y=ydelta_plus,i=xPos,j=yPos)
            temp = ydelta_plus
            ydelta= ydelta + step_over
            ydelta_plus= yPos  + ydelta +step_over
            ydelta_minus= yPos  - ydelta -step_over
            yPos2 = yPos-step_over/2.0

        midpoint = ((temp - (yPos-dia/2.0+ tool_dia/2.0))*.5) + (yPos-dia/2.0+ tool_dia/2.0)
        arc_ccw(x=xPos,y=(yPos-dia/2.0+ tool_dia/2.0),i=xPos,j=midpoint)
        arc_ccw(x=xPos,y=(yPos+dia/2.0- tool_dia/2.0),i=xPos,j=yPos)
        arc_ccw(x=xPos,y=(yPos-dia/2.0+ tool_dia/2.0),i=xPos,j=yPos)
        feed(xPos,yPos)
        currentDepth = currentDepth - step_down
    ydelta = 0
    ydelta_plus = yPos + step_over
    ydelta_minus = yPos - step_over

    if currentDepth > final_depth :
        ydelta = 0.0
        ydelta_plus = yPos + step_over
        ydelta_minus = yPos - step_over
        feed(y= ydelta_plus )
        yPos2 = yPos
        arc_ccw(x=xPos,y=ydelta_minus,z=(final_depth+step_down/2.0),i=xPos,j=yPos2)
        arc_ccw(x=xPos,y=ydelta_plus,z=(final_depth),i=xPos,j=yPos)
        while ydelta < ((dia/2.0 - tool_dia/2.0)-step_over):

            arc_ccw(x=xPos,y=ydelta_minus,i=xPos,j=yPos2)
            arc_ccw(x=xPos,y=ydelta_plus,i=xPos,j=yPos)
            temp = ydelta_plus
            ydelta= ydelta + step_over
            ydelta_plus= yPos  + ydelta +step_over

            ydelta_minus= yPos  - ydelta -step_over
            yPos2 = yPos-step_over/2.0
        midpoint = ((temp - (yPos-dia/2.0+ tool_dia/2.0))*.5) + (yPos-dia/2.0+ tool_dia/2.0)
        arc_ccw(x=xPos,y=(yPos-dia/2.0+ tool_dia/2.0),i=xPos,j=midpoint)
        arc_ccw(x=xPos,y=(yPos+dia/2.0- tool_dia/2.0),i=xPos,j=yPos)
        arc_ccw(x=xPos,y=(yPos-dia/2.0+ tool_dia/2.0),i=xPos,j=yPos)

    else:
        feed(xPos,yPos)

    feed(xPos,yPos)
    rapid(z=clearance)