#! /usr/bin/python
# Copyright 2008 by Bdale Garbee <bdale@gag.com>.  GPLv2
# Copyright 2011 by Anthony Towns <aj@erisian.com.au>. GPLv2

import math
from rocket_gcode import *

Zfree = 0.2500          # height in Z to clear all obstructions
Speed = 10              # cutting speed

MMT_OD      = mm2inch(79.3)
Coupler_ID  = 3.74
Airframe_ID = 3.90
Nose_ID     = 3.75

FinCount = 3
FinWidth = mm2inch(6.25) # Actually 6.85, but allowance for wandering bit.


### AFT CR - Aeropack holes and fin slots - 1/8" bit
CutterOD = 0.125           # 1/8"
gcode = Gcode(output=open("mjbl3_cr_aft-aeropack.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

RingThickness = 0.75
RingID = MMT_OD
RingOD = Airframe_ID
AeropackRotation = 15  # Get the holes out of alignment with fin slots.
AeropackDepth    = 0.8 # Go right through the bulkhead
AeropackStep     = 0.2 # cut in 0.2 inch increments
FinDepth     = RingThickness/2
FinIncrement = 0.1

gcode.comment("Aeropack retainer holes, depth %s" % (AeropackDepth,))
gcode.aeropack_75mm(AeropackRotation, AeropackDepth, AeropackStep)

gcode.comment("Fin slots, depth %1.3f in %1.1f increments" % (FinDepth, FinIncrement))
gcode.fin_slots(FinCount, RingID, RingOD, FinWidth, FinDepth, FinIncrement)

gcode.close()

### AFT CR - MMT/Airframe cuts - 1/4" bit.
CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_cr_aft-rings.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

RingID = MMT_OD
RingOD = Airframe_ID

for Zthrough in (0.25, 0.5, 0.8):
    gcode.Zdepth = Zthrough
    gcode.comment("MMT hole depth %s" % (Zthrough,))
    gcode.circle(RingID - CutterOD)

for Zthrough in (0.25, 0.5, 0.8):
    gcode.Zdepth = Zthrough
    gcode.comment("ring outer diameter")
    gcode.circle(RingOD + CutterOD)

gcode.close()

### FORWARD FIN CR - fin slots
CutterOD = 0.125           # 1/8"
gcode = Gcode(output=open("mjbl3_cr_finfwd-slots.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

RingThickness = 0.75
RingID = MMT_OD
RingOD = Airframe_ID
FinDepth     = RingThickness/2
FinIncrement = 0.1

gcode.fin_slots(FinCount, RingID, RingOD, FinWidth, FinDepth, FinIncrement)

gcode.close()

### AFT CR - MMT/Airframe cuts - 1/4" bit.
CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_cr_finfwd-rings.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

RingID = MMT_OD
RingOD = Airframe_ID

for Zthrough in (0.25, 0.5, 0.8):
    gcode.Zdepth = Zthrough
    gcode.comment("MMT hole depth %s" % (Zthrough,))
    gcode.circle(RingID - CutterOD)

for Zthrough in (0.25, 0.5, 0.8):
    gcode.Zdepth = Zthrough
    gcode.comment("ring outer diameter")
    gcode.circle(RingOD + CutterOD)

gcode.close()

### ZIPPERLESS FORWARD CR
CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_cr_zipperless.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

RingID = MMT_OD
RingOD = Coupler_ID

for Zthrough in (0.25, 0.6):
    gcode.Zdepth = Zthrough
    gcode.comment("Zipperless CR, MMT diam")
    gcode.circle(RingID - CutterOD)

for Zthrough in (0.25, 0.6):
    gcode.Zdepth = Zthrough
    gcode.comment("Zipperless CR, coupler diam")
    gcode.circle(RingOD + CutterOD)

gcode.close()

### EBAY BULKHEAD HOLES
CutterOD = 0.125          # 1/8" 
gcode = Gcode(output=open("mjbl3_bh_ebay-holes1.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

Allthread_width = 2.50

gcode.hole(x=0, y= (Allthread_width/2), depth=0.6, increment=0.3, speed=25)
gcode.hole(x=0, y=-(Allthread_width/2), depth=0.6, increment=0.3, speed=25)

gcode.close()

CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_bh_ebay-holes2.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

UBolt_width     = 0.945

gcode.hole(x= (UBolt_width/2), y=0, depth=0.6, increment=0.3, speed=25)
gcode.hole(x=-(UBolt_width/2), y=0, depth=0.6, increment=0.3, speed=25)

gcode.close()

### EBAY BULKHEADS
CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_bh_ebay.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

BulkheadOD      = Airframe_ID
StepOD          = Coupler_ID

gcode.Zdepth = 0.25
gcode.comment("ebay bulkhead - step, coupler diameter")
gcode.circle(StepOD + CutterOD)

for Zthrough in (0.25, 0.6):
    gcode.Zdepth = Zthrough
    gcode.comment("ebay bulkhead - outer diameter")
    gcode.circle(BulkheadOD + CutterOD)

gcode.close()

### Nosecone bulkhead
CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_bh_nose.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

BulkheadOD    = Nose_ID
HatchOD       = 2.0
HatchFlangeOD = 2.5

for Zthrough in (0.25, 0.6):
    gcode.Zdepth = Zthrough
    gcode.comment("Nose bulkhead, hatch.")
    gcode.circle(HatchOD - CutterOD)

gcode.Zdepth = 0.25
gcode.comment("Nose bulkhead, hatch flange")
gcode.circle(HatchFlangeOD - CutterOD)

for Zthrough in (0.25, 0.6):
    gcode.Zdepth = Zthrough
    gcode.comment("Nose bulkhead - outer diameter")
    gcode.circle(BulkheadOD + CutterOD)

gcode.close()

### Nosecone bulkhead - hatch slot
CutterOD = 0.125           # 1/8" 
gcode = Gcode(output=open("mjbl3_bh_nose-hatch-slot.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

gcode.slot(startX=0, startY=0.75, stopX=0, stopY=-0.75, width=0.180, depth=0.6, increment=0.1)

gcode.close()

### Nosecone bulkhead - hatch
CutterOD = 0.25           # 1/4" 
gcode = Gcode(output=open("mjbl3_bh_nose-hatch.ngc","w"), speed=Speed, free=Zfree, cutter=CutterOD)

HatchOD       = 2.0
HatchFlangeOD = 2.5

gcode.Zdepth = 0.25
gcode.comment("Nose bulkhead, hatch")
gcode.circle(HatchOD + CutterOD)

for Zthrough in (0.25, 0.6):
    gcode.Zdepth = Zthrough
    gcode.comment("Nose bulkhead, hatch flange.")
    gcode.circle(HatchFlangeOD + CutterOD)

gcode.close()