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parts.py
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# ----------------------------------------------------------------------------
# -- Parts to print
# -- comps library
# -- Python FreeCAD functions and classes that groups components
# ----------------------------------------------------------------------------
# -- (c) Felipe Machado
# -- Area of Electronics. Rey Juan Carlos University (urjc.es)
# -- November-2016
# ----------------------------------------------------------------------------
# --- LGPL Licence
# ----------------------------------------------------------------------------
import FreeCAD
import Part
import Draft
import Mesh
import MeshPart
import DraftVecUtils
import logging
import inspect
# ---------------------- can be taken away after debugging
import os
# directory this file is
filepath = os.getcwd()
import sys
# to get the components
# In FreeCAD can be added: Preferences->General->Macro->Macro path
sys.path.append(filepath)
# ---------------------- can be taken away after debugging
import kcomp
import kcomp_optic
import fcfun
import comps
import kparts
import shp_clss
import fc_clss
from fcfun import V0, VX, VY, VZ, V0ROT, addBox, addCyl, addCyl_pos, fillet_len
from fcfun import VXN, VYN, VZN
from fcfun import addBolt, addBoltNut_hole, NutHole
from kcomp import TOL
stl_dir = "/stl/"
logging.basicConfig(level=logging.DEBUG,
format='%(%(levelname)s - %(message)s')
logger = logging.getLogger(__name__)
# ----------- class AluProfBracketPerp -----------------------------------
class AluProfBracketPerp (object):
"""
Bracket to join 2 aluminum profiles that are perpendicular,
that is, they are not on the same plane
::
aluprof_perp (perpendicular to the bracket)
/ / / bracket (not drawn)
/ / /_____
/ / /_____/|
/__/ /______|/ aluprof_lin (it is in line with the bracket)
|__|/
fc_perp_ax (is not the axis of the perpendicular
: profile, but the axis of the bracket
aluprof_perp : attached to the perpendicular profile
___:_
| | \ bracket
_|___|____\___ .........> fc_line_ax
alusize_lin + aluprof_lin
:_______________
fc_perp_ax
:
:br_perp_thick
.+.
....:__:
: | |\
alusize_perp + | | \
: | |______\..
:...|_________|..: br_lin_thick .........> fc_lin_ax
:.........:
Parameters
----------
alusize_lin : float
Width of the aluminum profile on the line
alusize_perp : float
Width of the perpendicular aluminum profile
br_lin_thick : float
Thickness of the line bracket
br_perp_thick : float
Thickness of the perpendicular bracket
bolt_lin_d : int
Metric of the bolt 3, 4, ... (integer)
bolt_perp_d : int
Metric of the bolt 3, 4, ... (integer) on the profile line
if 0, the same as bolt_lin_d
nbolts_lin : int
Number of bolts one bolt on the fc_lin_ax,
number of bolts: two bolts on the fc_lin_ax
bolts_lin_dist : float
If more than one bolt on fc_lin_ax, defines the
distance between them.
if zero, takes min distance
bolts_lin_rail : int
Instead of bolt holes, it will be a rail
it doesn't make sense to have number of bolts with this option
it will work on 2 bolts or more. If nbolts_lin == 3, it
will make a rail between them. so it will be the same to have
nbolts_lin = 2 and bolts_lin_dist = 20
nbolts_lin = 3 and bolts_lin_dist = 10
The rail will be 20, and it will look the same, it will be
more clear to have the first option: 2 bolts
xtr_bolt_head : float
Extra space for the bolt head length,
and making a space for it
xtr_bolt_head_d : float
Extra space for the bolt head diameter,
and making a space for it. For the wall bolt
reinforce : int
1, if it is reinforced on the sides of lin profile
fc_perp_ax : FreeCAD.Vector
Axis of the bracket on the perpendicular prof, see picture
fc_lin_ax : FreeCAD.Vector
Axis of the bracket on the aligned profile, see picture
pos : FreeCAD.Vector
Position of the center of the bracket on the intersection
wfco : int
* if 1: With FreeCad Object: a freecad object is created
* if 0: only the shape
name : str
Name of the freecad object, if created
"""
def __init__(self, alusize_lin, alusize_perp,
br_perp_thick = 3.,
br_lin_thick = 3.,
bolt_lin_d = 3, #metric of the bolt
bolt_perp_d = 0, #metric of the bolt
nbolts_lin = 1,
bolts_lin_dist = 0,
bolts_lin_rail = 0,
xtr_bolt_head = 3,
xtr_bolt_head_d = 0,
reinforce = 1,
fc_perp_ax = VZ,
fc_lin_ax = VX,
pos = V0,
wfco=1,
name = 'bracket'):
doc = FreeCAD.ActiveDocument
self.name = name
# bolt lin dimensions
boltli_dict = kcomp.D912[bolt_lin_d]
boltlihead_r = boltli_dict['head_r']
boltlihead_r_tol = boltli_dict['head_r_tol']
boltlishank_r_tol = boltli_dict['shank_r_tol']
boltlihead_l = boltli_dict['head_l']
if bolt_perp_d == 0:
bolt_perp_d = bolt_lin_d
boltpe_dict = kcomp.D912[bolt_perp_d]
boltpehead_r = boltpe_dict['head_r']
boltpehead_r_tol = boltpe_dict['head_r_tol']
boltpeshank_r_tol = boltpe_dict['shank_r_tol']
boltpehead_l = boltpe_dict['head_l']
boltmaxhead_r = max(boltlihead_r, boltpehead_r)
boltmaxhead_r_tol = max(boltlihead_r_tol, boltpehead_r_tol)
# normalize axis, just in case:
axis_perp = DraftVecUtils.scaleTo(fc_perp_ax,1)
axis_lin = DraftVecUtils.scaleTo(fc_lin_ax,1)
axis_perp_neg = axis_perp.negative()
axis_lin_neg = axis_lin.negative()
axis_wid = axis_perp.cross(axis_lin)
#Calculate the length of the brlin_l
# br_perp_thick :boltpehead_l
# : : : boltlihead_r
# ....:__: : :
# : | |_ :
# alusize_perp + | |_| _:_
# : | |__|___|___
# :...|_____________|
# :.......:
# bolt1li_dist = br_perp_thick+boltpehead_l+boltlihead_r
# : : :
# 2 x boltlihead_r
# :.............:
# + brlin_l
bolt1li_dist = ( br_perp_thick + boltpehead_l + boltlihead_r_tol
+ xtr_bolt_head )
brlin_l = bolt1li_dist + 2 * boltlihead_r
if nbolts_lin > 1:
if bolts_lin_dist == 0:
# for every new bolt, add 3 times the bolt head radius
bolts_lin_dist = 3 * boltlihead_r
elif bolts_lin_dist < (3 * boltlihead_r) :
logger.warning ('bolt_lin_dist too short')
bolts_lin_dist = 3 * boltlihead_r
brlin_l = brlin_l + (nbolts_lin-1)* bolts_lin_dist
# ....:__: : : _________
# : | |_ : || ||
# alusize_perp + | |_| _:_ || O ||
# : | |__|___|___ ||_______||
# :...|_____________| |___:_:___|......axis_wid
# :.............: :.........:
# + brlin_l + alusize_lin
shp_box = fcfun.shp_box_dir (box_w = alusize_lin,
box_d = brlin_l,
box_h = alusize_perp,
fc_axis_h = axis_perp,
fc_axis_d = axis_lin,
cw = 1, cd = 0, ch = 0,
pos = pos)
chmf_out_r = min(brlin_l-br_perp_thick, alusize_perp-br_lin_thick)
chmf_out_pos = ( pos + DraftVecUtils.scaleTo(axis_lin, brlin_l)
+ DraftVecUtils.scaleTo(axis_perp, alusize_perp))
shp_box = fcfun.shp_filletchamfer_dirpt(shp_box,
fc_axis = axis_wid,
fc_pt = chmf_out_pos,
fillet = 0,
radius = chmf_out_r)
# inside_w
# ...+...
# ....:__: : : :_______:
# : | |_ : || ||
# alusize_perp + | |_| _:_ || O ||
# : | |__|___|___ ||_______||
# :...|_____________| |___:_:___|
# :.............: :.........:
# + brlin_l + alusize_lin
# cut the box inside
# Inside width
# add one, to have it a minimum of one mm
if (reinforce == 1 and
(alusize_lin > 2*(boltmaxhead_r + kcomp.TOL) + 1 )):
if thickness_reinforce !=None and thickness_reinforce>0:
inside_w = alusize_lin - 2*thickness_reinforce
else:
inside_w = 2*(boltmaxhead_r + kcomp.TOL)
#print ("inside width " + str(inside_w))
else:
#no space for reinforcement, or reinforcement 0
inside_w = alusize_lin + 2 # +2 to make the cut
# chamfer of the inside box
chmf_in_r = alusize_perp/2. - br_lin_thick -boltpehead_r_tol
logger.debug ("chamfer radius" + str(chmf_in_r))
# inside box:
insbox_pos = ( pos + DraftVecUtils.scale(axis_lin,br_perp_thick)
+ DraftVecUtils.scale(axis_perp,br_lin_thick))
shp_insbox = fcfun.shp_box_dir (box_w = inside_w,
box_d = brlin_l,
box_h = alusize_perp,
fc_axis_h = axis_perp,
fc_axis_d = axis_lin,
cw = 1, cd = 0, ch = 0,
pos = insbox_pos)
if chmf_in_r > 0 :
shp_insbox = fcfun.shp_filletchamfer_dirpt(shp_insbox,
fc_axis = axis_wid,
fc_pt = insbox_pos,
fillet = 0,
radius = chmf_in_r)
#Part.show(shp_insbox)
shp_box = shp_box.cut(shp_insbox)
#pos_boltpe = pos + DraftVecUtils.scale(axis_perp,alusize_perp/2.)
#shp_boltpe= fcfun.shp_cylcenxtr(r=boltshank_r_tol,
# h=brack_thick,
# normal = axis_lin,
# ch = 0, xtr_top = 1, xtr_bot=1,
# pos = pos_boltpe)
boltholes = []
pos_boltpe = (pos + DraftVecUtils.scale(axis_perp,alusize_perp/2.)
+ DraftVecUtils.scale(axis_lin,br_perp_thick+boltpehead_l))
shp_boltpe = fcfun.shp_bolt_dir(r_shank = boltpeshank_r_tol,
l_bolt = br_perp_thick + boltpehead_l,
r_head = boltpehead_r_tol + xtr_bolt_head_d/2.,
l_head = boltpehead_l,
xtr_head = xtr_bolt_head,
xtr_shank = 1,
support = 0,
fc_normal = axis_lin_neg,
fc_verx1 = axis_perp, #it doesn't matter
pos = pos_boltpe)
boltholes.append(shp_boltpe)
# position of the first bolt
pos_boltli = pos + DraftVecUtils.scale(axis_lin,bolt1li_dist)
pos_boltli_top = (pos_boltli
+ DraftVecUtils.scale(axis_perp, alusize_perp))
if bolts_lin_rail == 1 and nbolts_lin > 1:
# there is a rail
rail_l = (nbolts_lin - 1) * bolts_lin_dist
# 2 Stadium to cut the chamfer if it is too big
shp_railli = fcfun.shp_2stadium_dir (length = rail_l,
r_s = boltlishank_r_tol,
r_l = boltlihead_r_tol + kcomp.TOL/2., #extra TOL
h_tot = alusize_perp,
h_rl = alusize_perp-br_lin_thick,
fc_axis_h = axis_perp_neg,
fc_axis_l = axis_lin,
ref_l = 2, #ref on the circle center
rl_h0 = 1, #bolt head is on pos
xtr_h = 1,
xtr_nh = 1,
pos = pos_boltli_top)
boltholes.append(shp_railli)
else: # holes for the bolts
# first boltli hole , make a bolt, in case there is chamfer to cut
shp_boltli = fcfun.shp_bolt_dir(r_shank = boltlishank_r_tol,
l_bolt = alusize_perp,
r_head = boltlihead_r_tol + kcomp.TOL/2., #extra TOL
l_head = alusize_perp-br_lin_thick,
xtr_head = 1,
xtr_shank = 1,
support = 0,
fc_normal = axis_perp_neg,
fc_verx1 = axis_lin, #it doesn't matter
pos = pos_boltli_top)
boltholes.append(shp_boltli)
# the rest of boltli holes
for ibolt in range (1, nbolts_lin):
pos_boltli = ( pos_boltli
+ DraftVecUtils.scale(axis_lin,bolts_lin_dist))
shp_boltli= fcfun.shp_cylcenxtr(r=boltlishank_r_tol,
h=br_lin_thick,
normal = axis_perp,
ch = 0, xtr_top = 1, xtr_bot=1,
pos = pos_boltli)
boltholes.append(shp_boltli)
shp_boltfuse = fcfun.fuseshplist(boltholes)
shp_bracket = shp_box.cut(shp_boltfuse)
doc.recompute()
shp_bracket =shp_bracket.removeSplitter()
doc.recompute()
self.shp = shp_bracket
self.wfco = wfco
if wfco == 1:
# a freeCAD object is created
fco_bracket = doc.addObject("Part::Feature", name )
fco_bracket.Shape = shp_bracket
self.fco = fco_bracket
def color (self, color = (1,1,1)):
if self.wfco == 1:
self.fco.ViewObject.ShapeColor = color
else:
logger.debug("Bracket object with no fco")
# exports the shape into stl format
# exportStl has problems in FreeCAD 0.17 when there are cylinders
# or fillets
def export_stl (self, name = ""):
#filepath = os.getcwd()
if not name:
name = self.name
stlPath = filepath + "/stl/"
stlFileName = stlPath + name + "2.stl"
# not working well with FreeCAD 0.17
#self.shp.exportStl(stlFileName)
mesh_shp = MeshPart.meshFromShape(self.shp,
LinearDeflection=kparts.LIN_DEFL,
AngularDeflection=kparts.ANG_DEFL)
mesh_shp.write(stlFileName)
del mesh_shp
#doc = FreeCAD.newDocument()
#al = AluProfBracketPerp ( alusize_lin = 10, alusize_perp = 10,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# bolt_lin_d = 3,
# bolt_perp_d = 3,
# nbolts_lin = 1,
# xtr_bolt_head = 4,
# xtr_bolt_head_d = 2*kcomp.TOL, # space for the nut
# reinforce = 0,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket_lin3_1bolt_noreinfore')
#al.export_stl()
#AluProfBracketPerp ( alusize_lin = 10, alusize_perp = 10,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# bolt_d = 3,
# nbolts_lin = 2,
# xtr_bolt_head = 3,
# xtr_bolt_head_d = 2*kcomp.TOL, # space for the nut
# reinforce = 0,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket_lin3_2bolts_noreinfore')
#doc = FreeCAD.newDocument()
#AluProfBracketPerp ( alusize_lin = 10, alusize_perp = 20,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# bolt_lin_d = 3,
# bolt_perp_d = 3,
# nbolts_lin = 2,
# bolts_lin_dist = 0,
# bolts_lin_rail = 0,
# xtr_bolt_head = 3,
# xtr_bolt_head_d = 2*kcomp.TOL, # space for the nut
# reinforce = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket_lin3_1bolt_noreinfore')
#AluProfBracketPerp ( alusize_lin = 20, alusize_perp = 10,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# bolt_lin_d = 3,
# bolt_perp_d = 3,
# nbolts_lin = 2,
# bolts_lin_dist = 0,
# bolts_lin_rail = 0,
# xtr_bolt_head = 3,
# xtr_bolt_head_d = 2*kcomp.TOL, # space for the nut
# reinforce = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket_lin3_1bolt_noreinfore')
#AluProfBracketPerp ( alusize_lin = 10, alusize_perp = 10,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# bolt_lin_d = 4,
# bolt_perp_d = 3,
# nbolts_lin = 2,
# bolts_lin_dist = 25,
# bolts_lin_rail = 1,
# xtr_bolt_head = 3,
# xtr_bolt_head_d = 2*kcomp.TOL, # space for the nut
# reinforce = 0,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket_lin3_1bolt_noreinfore')
#
#AluProfBracketPerp ( alusize_lin = 25, alusize_perp = 10,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# bolt_lin_d = 6,
# bolt_perp_d = 3,
# nbolts_lin = 2,
# bolts_lin_dist = 50,
# bolts_lin_rail = 1,
# xtr_bolt_head = 3,
# xtr_bolt_head_d = 2*kcomp.TOL, # space for the nut
# reinforce = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket_lin3_1bolt_noreinfore')
# ----------- class AluProfBracketPerpWide -----------------------------------
class AluProfBracketPerpFlap (object):
"""
Bracket to join 2 aluminum profiles that are perpendicular,
that is, they are not on the same plane
It is wide because it has 2 ears/flaps? on the sides, to attach
to the perpendicular profile
::
aluprof_perp (perpendicular to the bracket)
/ / / bracket (not drawn)
/ / /_____
/ / /_____/|
/__/ /______|/ aluprof_lin (it is in line with the bracket)
|__|/
fc_perp_ax (is not the axis of the perpendicular
: profile, but the axis of the bracket
aluprof_perp : attached to the perpendicular profile
___:_
| | \ bracket
_|___|____\___ .........> fc_line_ax
alusize_lin + aluprof_lin
:_______________
fc_perp_ax
:
:br_perp_thick
.+.
....:__:
: | |\
alusize_perp + | | \
: | |______\..
:...|__|______|..: br_lin_thick .........> fc_lin_ax
:.........:
Parameters
----------
alusize_lin : float
Width of the aluminum profile on the line
alusize_perp : float
Width of the perpendicular aluminum profile
br_lin_thick : float
Thickness of the line bracket
br_perp_thick : float
Thickness of the perpendicular bracket
bolt_lin_d : int
Metric of the bolt 3, 4, ... (integer)
bolt_perp_d : int
Metric of the bolt 3, 4, ... (integer) on the profile line
if 0, the same as bolt_lin_d
nbolts_lin : int
* 1: just one bolt on the fc_lin_ax, or two bolts
* 2: two bolts on the fc_lin_ax, or two bolts
bolts_lin_dist : float
If more than one bolt on fc_lin_ax, defines the
distance between them.
if zero, takes min distance
bolts_lin_rail : int
Instead of bolt holes, it will be a rail
it doesn't make sense to have number of bolts with this option
it will work on 2 bolts or more. If nbolts_lin == 3, it
will make a rail between them. so it will be the same to have
nbolts_lin = 2 and bolts_lin_dist = 20
nbolts_lin = 3 and bolts_lin_dist = 10
The rail will be 20, and it will look the same, it will be
more clear to have the first option: 2 bolts
xtr_bolt_head : float
Extra space for the bolt head on the line to the wall
(perpendicular)
sunk : int
* 0: just drilled
* 1: if the top part is removed,
* 2: No reinforcement at all
flap : int
If it has flaps or if it doesn't have flaps, it is kind of useless
because it is just the middle part without bolts on the
wall, but it can be used to make a union with other parts
fc_perp_ax : FreeCAD.Vector
Axis of the bracket on the perpendicular profile, see picture
fc_lin_ax : FreeCAD.Vector
Axis of the bracket on the aligned profile, see picture
pos : FreeCAD.Vector
Position of the center of the bracket on the intersection
wfco :
* 1: With FreeCad Object: a freecad object is created
* 0: only the shape
name : str
Name of the freecad object, if created
"""
def __init__(self, alusize_lin, alusize_perp,
br_perp_thick = 3.,
br_lin_thick = 3.,
bolt_lin_d = 3, #metric of the bolt
bolt_perp_d = 0, #metric of the bolt
nbolts_lin = 1,
bolts_lin_dist = 0,
bolts_lin_rail = 0,
xtr_bolt_head = 1,
sunk = 1,
flap = 1,
fc_perp_ax = VZ,
fc_lin_ax = VX,
pos = V0,
wfco=1,
name = 'bracket_flap'):
doc = FreeCAD.ActiveDocument
self.name = name
boltli_dict = kcomp.D912[bolt_lin_d]
boltlihead_r = boltli_dict['head_r']
boltlihead_r_tol = boltli_dict['head_r_tol']
boltlishank_r_tol = boltli_dict['shank_r_tol']
boltlihead_l = boltli_dict['head_l']
if bolt_perp_d == 0:
bolt_perp_d = bolt_lin_d
boltpe_dict = kcomp.D912[bolt_perp_d]
boltpehead_r = boltpe_dict['head_r']
boltpehead_r_tol = boltpe_dict['head_r_tol']
boltpeshank_r_tol = boltpe_dict['shank_r_tol']
boltpehead_l = boltpe_dict['head_l']
# normalize axis, just in case:
axis_perp = DraftVecUtils.scaleTo(fc_perp_ax,1)
axis_lin = DraftVecUtils.scaleTo(fc_lin_ax,1)
axis_perp_neg = axis_perp.negative()
axis_lin_neg = axis_lin.negative()
axis_wid = axis_perp.cross(axis_lin)
#Calculate the length of the brlin_l
# :+ br_perp_thick :boltpehead_l
# : :+xtr_bolt_head
# : : : + boltlihead_r
# ....:__: : :
# : | | :
# alusize_perp + | | _:_
# : | |__|___|___
# :...|_____________|
# :.......:
# +bolt1li_dist=br_perp_thick+xtr_bolt_head+boltlihead_r
# : : :
# 2 x boltlihead_r
# :.............:
# + brlin_l
bolt1li_dist = br_perp_thick + xtr_bolt_head + boltlihead_r
brlin_l = bolt1li_dist + 2 * boltlihead_r
if nbolts_lin > 1:
if bolts_lin_dist == 0:
# for every new bolt, add 3 times the bolt head radius
bolts_lin_dist = 3 * boltlihead_r
elif bolts_lin_dist < (3 * boltlihead_r) :
logger.warning ('bolt_lin_dist too short')
bolts_lin_dist = 3 * boltlihead_r
brlin_l = brlin_l + (nbolts_lin-1)* bolts_lin_dist
# 1
# ....:__: : : _____________________
# : | | : | || || |
# alusize_perp + | | _:_ | O || || O |
# : | |_|___|___ | ||_______|| |
# :...|____________| |_____|___:_:___|_____|..axis_wid
# :............: : :.........:
# + brlin_l : :alusize_lin
# :.....:
# oneflap_w:
# min(4xboltpehead_r, alusize_lin)
# :.....................:
# totalflap_w
shp_boxbr = fcfun.shp_box_dir (box_w = alusize_lin,
box_d = brlin_l,
box_h = alusize_perp,
fc_axis_h = axis_perp,
fc_axis_d = axis_lin,
cw = 1, cd = 0, ch = 0,
pos = pos)
oneflap_w = 0
if flap == 1:
oneflap_w = min(4*boltpehead_r, alusize_lin)
totalflap_w = alusize_lin + 2 * oneflap_w
shp_flap = fcfun.shp_box_dir (box_w = totalflap_w,
box_d = br_perp_thick,
box_h = alusize_perp,
fc_axis_h = axis_perp,
fc_axis_d = axis_lin,
cw = 1, cd = 0, ch = 0,
pos = pos)
shp_boxbr = shp_boxbr.fuse(shp_flap)
chmf_pts = []
for isg in [-0.5,0.5]:
chmf_pt_pos = (pos
+ DraftVecUtils.scale(axis_lin, br_perp_thick)
+ DraftVecUtils.scale(axis_wid, isg * alusize_lin))
chmf_pts.append(chmf_pt_pos)
# reinforcement of the flaps with the central space
shp_boxbr = fcfun.shp_filletchamfer_dirpts(shp_boxbr,
fc_axis = axis_perp,
fc_pts = chmf_pts,
fillet = 0,
radius = boltpehead_r )
doc.recompute()
shp_boxbr =shp_boxbr.removeSplitter()
chmf_out_r = min(brlin_l-br_perp_thick, alusize_perp-br_lin_thick)
chmf_out_pos = ( pos + DraftVecUtils.scaleTo(axis_lin, brlin_l)
+ DraftVecUtils.scaleTo(axis_perp, alusize_perp))
shp_boxbr = fcfun.shp_filletchamfer_dirpt(shp_boxbr,
fc_axis = axis_wid,
fc_pt = chmf_out_pos,
fillet = 0,
radius = chmf_out_r)
# ....:__: : : _____________________
# : | | : | || || |
# alusize_perp + | | _:_ | O || || O |
# : | |_|___|___ | ||_______|| |
# :...|____________| |_____|___:_:___|_____|..axis_wid
# :.............: :.........:
# + brlin_l + alusize_lin
boltholes = []
# inside box: (sunk == 1)
if sunk > 0:
# cut the box inside
# Inside width
# add one, to have it a minimum of one mm
if (sunk == 1) and (alusize_lin > 2*(boltlihead_r + kcomp.TOL) + 1):
inside_w = 2*(boltlihead_r + kcomp.TOL)
#print ("inside width " + str(inside_w))
else:
# no space for reinforcement, or no reinforcement (sunk == 2)
inside_w = alusize_lin + oneflap_w + 2 # +2 to make the cut
# chamfer of the inside box
chmf_in_r = alusize_perp/2. - br_lin_thick -boltlihead_r_tol
logger.debug ("chamfer radius" + str(chmf_in_r))
insbox_pos = ( pos + DraftVecUtils.scale(axis_lin,br_perp_thick)
+ DraftVecUtils.scale(axis_perp,br_lin_thick))
shp_insbox = fcfun.shp_box_dir (box_w = inside_w,
box_d = brlin_l,
box_h = alusize_perp,
fc_axis_h = axis_perp,
fc_axis_d = axis_lin,
cw = 1, cd = 0, ch = 0,
pos = insbox_pos)
if chmf_in_r > 0 :
shp_insbox = fcfun.shp_filletchamfer_dirpt(shp_insbox,
fc_axis = axis_wid,
fc_pt = insbox_pos,
fillet = 0,
radius = chmf_in_r)
shp_boxbr = shp_boxbr.cut(shp_insbox)
#pos_boltpe = pos +DraftVecUtils.scale(axis_perp,alusize_perp/2.)
#shp_boltpe= fcfun.shp_cylcenxtr(r=boltshank_r_tol,
# h=brack_thick,
# normal = axis_lin,
# ch = 0, xtr_top = 1, xtr_bot=1,
# pos = pos_boltpe)
if flap == 1:
boltpe_dist_w = (alusize_lin+oneflap_w)/2
for iboltpe in [-boltpe_dist_w,boltpe_dist_w]:
pos_boltpe = (pos
+ DraftVecUtils.scale(axis_perp,alusize_perp/2.)
+ DraftVecUtils.scale(axis_lin,br_perp_thick+boltpehead_l)
+ DraftVecUtils.scale(axis_wid, iboltpe))
shp_boltpe = fcfun.shp_bolt_dir(r_shank = boltpeshank_r_tol,
l_bolt = br_perp_thick + boltpehead_l,
r_head = boltpehead_r_tol + kcomp.TOL, #extra TOL
l_head = boltpehead_l,
xtr_head = 2,
xtr_shank = 1,
support = 0,
fc_normal = axis_lin_neg,
fc_verx1 = axis_perp, #it doesn't matter
pos = pos_boltpe)
boltholes.append(shp_boltpe)
# position of the first bolt, on top
pos_boltli = ( pos + DraftVecUtils.scale(axis_lin,bolt1li_dist) +
DraftVecUtils.scale(axis_perp, alusize_perp))
if bolts_lin_rail == 1 and nbolts_lin > 1:
# there is rail
rail_l = (nbolts_lin - 1) * bolts_lin_dist
# make the hole also for the head of the bolts, even that maybe
# it is not necessary because it is sunk
shp_railli = fcfun.shp_2stadium_dir (length = rail_l,
r_s = boltlishank_r_tol,
r_l = boltlihead_r_tol + kcomp.TOL/2., #extra TOL
h_tot = alusize_perp,
h_rl = alusize_perp-br_lin_thick,
fc_axis_h = axis_perp_neg,
fc_axis_l = axis_lin,
ref_l = 2, #ref on the circle center
rl_h0 = 1, #bolt head is on pos
xtr_h = 1,
xtr_nh = 1,
pos = pos_boltli)
boltholes.append(shp_railli)
else :
# first bolt hole:
shp_boltli = fcfun.shp_bolt_dir(r_shank = boltlishank_r_tol,
l_bolt = alusize_perp,
r_head = boltlihead_r_tol + kcomp.TOL/2., #extra TOL
l_head = alusize_perp-br_lin_thick,
xtr_head = 1,
xtr_shank = 1,
support = 0,
fc_normal = axis_perp_neg,
fc_verx1 = axis_lin, #it doesn't matter
pos = pos_boltli)
boltholes.append(shp_boltli)
#if nbolts_lin > 1:
for ibolt in range (1, nbolts_lin):
pos_boltli = ( pos_boltli
+ DraftVecUtils.scale(axis_lin,bolts_lin_dist))
shp_boltli = fcfun.shp_bolt_dir(r_shank = boltlishank_r_tol,
l_bolt = alusize_perp,
r_head = boltlihead_r_tol + kcomp.TOL/2., #extra TOL
l_head = alusize_perp-br_lin_thick,
xtr_head = 1,
xtr_shank = 1,
support = 0,
fc_normal = axis_perp_neg,
fc_verx1 = axis_lin, #it doesn't matter
pos = pos_boltli)
boltholes.append(shp_boltli)
shp_boltfuse = fcfun.fuseshplist(boltholes)
shp_bracket = shp_boxbr.cut(shp_boltfuse)
doc.recompute()
shp_bracket =shp_bracket.removeSplitter()
doc.recompute()
self.shp = shp_bracket
self.wfco = wfco
if wfco == 1:
# a freeCAD object is created
fco_bracket = doc.addObject("Part::Feature", name )
fco_bracket.Shape = shp_bracket
self.fco = fco_bracket
def color (self, color = (1,1,1)):
if self.wfco == 1:
self.fco.ViewObject.ShapeColor = color
else:
logger.debug("Bracket object with no fco")
# exports the shape into stl format
def export_stl (self, name = ""):
#filepath = os.getcwd()
if not name:
name = self.name
stlPath = filepath + "/stl/"
stlFileName = stlPath + name + ".stl"
# exportStl is not working well with FreeCAD 0.17
#self.shp.exportStl(stlFileName)
mesh_shp = MeshPart.meshFromShape(self.shp,
LinearDeflection=kparts.LIN_DEFL,
AngularDeflection=kparts.ANG_DEFL)
mesh_shp.write(stlFileName)
del mesh_shp
#doc = FreeCAD.newDocument()
#AluProfBracketPerpFlap ( alusize_lin = 10, alusize_perp = 15,
# br_perp_thick = 4.,
# br_lin_thick = 3.,
# bolt_lin_d = 3,
# bolt_perp_d = 3,
# nbolts_lin = 2,
# bolts_lin_dist = 0,
# bolts_lin_rail = 0,
# xtr_bolt_head = 1,
# sunk = 0,
# flap = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket3_flap')
#AluProfBracketPerpFlap ( alusize_lin = 15, alusize_perp = 10,
# br_perp_thick = 4.,
# br_lin_thick = 3.,
# bolt_lin_d = 3,
# bolt_perp_d = 3,
# nbolts_lin = 2,
# bolts_lin_dist = 0,
# bolts_lin_rail = 0,
# xtr_bolt_head = 1,
# sunk = 0,
# flap = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket3_flap')
#AluProfBracketPerpFlap ( alusize_lin = 25, alusize_perp = 20,
# br_perp_thick = 4.,
# br_lin_thick = 4.,
# bolt_lin_d = 6,
# bolt_perp_d = 4.,
# nbolts_lin = 2,
# bolts_lin_dist = 50,
# bolts_lin_rail = 1,
# xtr_bolt_head = 1,
# sunk = 0,
# flap = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket3_flap')
#AluProfBracketPerpFlap ( alusize_lin = 10, alusize_perp = 10,
# br_perp_thick = 3.,
# br_lin_thick = 3.,
# nbolts_lin = 2,
# xtr_bolt_head = 1,
# sunk = 2,
# flap = 1,
# fc_perp_ax = VZ,
# fc_lin_ax = VX,
# pos = V0,
# wfco=1,
# name = 'bracket3_flap_sunk')
# ----------- class AluProfBracketPerpTwin -----------------------------------
class AluProfBracketPerpTwin (object):
"""
Bracket to join 3 aluminum profiles that are perpendicular,
that is, they are not on the same plane
to the perpendicular profile
::
aluprof_perp (perpendicular to the bracket)
. fc_wide_ax
___ .
/ /|.
/ / /______
/ / /______/| aluprof_lin (it is in line with the bracket)
/ / /_______|/-----------
/ / /_____ . alu_sep
/ / *_____/| .
/__/ /______|/-----------
|__|/ aluprof_lin (it is in line with the bracket)
* shows the reference for the position (argument pos)
the direction of fc_wide_ax indicates where the other
line of the bracket will be
fc_perp_ax (is not the axis of the perpendicular
: profile, but the axis of the bracket
aluprof_perp : attached to the perpendicular profile
___:_
| | \ bracket
_|___|____\___ .........> fc_line_ax
alusize_lin + aluprof_lin
:_______________
fc_perp_ax
:
:br_perp_thick
.+.
....:__:
: | |\
alusize_perp + | | \
: | |______\..
:...|_________|..: br_lin_thick .........> fc_lin_ax
:.........:
* bolt_perp_line