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#! /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()
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