Macro Geneva Wheel GUI: Difference between revisions
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{{Macro|Icon=GW_Dim|Name=Geneva Wheel GUI|Description=A GUI front end that allows the user to create a Geneva wheel mechanism from scratch. Based on drei's [[Macro Geneva Wheel|Macro Geneva Wheel]]|Author=quick61|Version=1.0|Date=2014-09-21}} |
{{Macro|Icon=GW_Dim|Name=Geneva Wheel GUI|Description=A GUI front end that allows the user to create a Geneva wheel mechanism from scratch. Based on drei's [[Macro Geneva Wheel|Macro Geneva Wheel]]|Author=quick61|Version=1.0|Date=2014-09-21}} |
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==Description== |
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A GUI front end that allows the user to create a Geneva wheel mechanism from scratch. Based on drei's [[Macro Geneva Wheel|Macro Geneva Wheel]] |
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==How To Use== <!--T:2--> |
==How To Use== <!--T:2--> |
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[[File:New GW GUI.png|Screenshot of Macro and result.]] |
[[File:New GW GUI.png|Screenshot of Macro and result.]] |
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== |
==Script== <!--T:7--> |
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'''Macro_Geneva_Wheel_GUI.FCMacro''' |
'''Macro_Geneva_Wheel_GUI.FCMacro''' |
Revision as of 17:14, 9 August 2018
File:GW Dim Geneva Wheel GUI |
Description |
---|
A GUI front end that allows the user to create a Geneva wheel mechanism from scratch. Based on drei's Macro Geneva Wheel Macro version: 1.0 Last modified: 2014-09-21 Author: quick61 |
Author |
quick61 |
Download |
None |
Links |
Macros recipes How to install macros How to customize toolbars |
Macro Version |
1.0 |
Date last modified |
2014-09-21 |
FreeCAD Version(s) |
None |
Default shortcut |
None |
See also |
None |
Description
A GUI front end that allows the user to create a Geneva wheel mechanism from scratch. Based on drei's Macro Geneva Wheel
How To Use
To use this Macro, copy it to your FreeCAD Macro directory and include the graphic image GW_Dim.png below in the same directory as the Macro.
Screenshot
Script
Macro_Geneva_Wheel_GUI.FCMacro
#Creation of a Geneva Wheel with Parametric values By: Isaac Ayala (drei) & Mark Stephen (quick61)
#This Macro creates the main parts of a Geneva Wheel Mechanism
#It depends on six values that must be altered in the following code
#The variables are a, b, n, p, t and h.
#Definition for each variable
# Input
#a = Drive Crank Radius
#b = Geneva Wheel Radius
#p = Drive Pin Radius
#t = Geneva Wheel Tolerance
#h = Geneva Wheel Height
#n = Driven Slot Quantity
# Output
#c = Distance Between Centers
#s = Slot Center Width
#w = Slot Width
#y = Stop Arc Radius
#z = Stop Disc Radius
#v = Clearance Arc
#Please note that you can alter the code so it depends on five values exclusively
#Just replace c, and either a or b with the following
# Keep value for a
#c = a/math.sin(math.pi/n)
#b = math.sqrt((math.pow(c,2))-(math.pow(a,2)))
# Keep value for b
#c = b/math.cos(math.pi/n)
#a = math.sqrt((math.pow(c,2))-(math.pow(b,2)))
from __future__ import division
import math
from FreeCAD import Base
from PySide import QtGui, QtCore
from PySide.QtGui import QApplication, QDialog, QMainWindow
import Part
import Draft
class p():
def Ggear(self):
try:
#Inputs
a = float(self.dCr.text())
#b = float(self.gWr.text())
p = float(self.dPd.text())
t = float(self.gWt.text())
h = float(self.gWh.text())
n = float(self.gWn.text())
#Outputs
#c = math.sqrt(pow(a,2) + pow(b,2))
c = a/math.sin(math.pi/n)
b = math.sqrt((math.pow(c,2))-(math.pow(a,2)))
s = a + b - c
w = p + t
y = a - (3 * p)
z = y - t
v = (b * z)/a
m = math.sqrt((v**2)+(z**2)) # Solves for location of clearance cut axis
# Create the Drive Crank (Will be placed on the origin)
driveCrank = Part.makeCylinder(z, h)
#driveCrank.translate(Base.Vector(0,0,0))
#genevaWheelClearanceCut = Part.makeCylinder(b, h)
#genevaWheelClearanceCut.translate(Base.Vector(-c,0,0))
genevaWheelClearanceCut = Part.makeCylinder(v, h)
genevaWheelClearanceCut.translate(Base.Vector(-m,0,0))
driveCrank = driveCrank.cut(genevaWheelClearanceCut)
driveCrankBase = Part.makeCylinder((a+(2*p)), h)
driveCrankBase.translate(Base.Vector(0,0,-h))
driveCrank = driveCrank.fuse(driveCrankBase)
drivePin = Part.makeCylinder(p,h)
drivePin.translate(Base.Vector(-a,0,0))
driveCrank = driveCrank.fuse(drivePin)
# Create the Geneva Wheel (Will be placed on the x-axis on the left side)
genevaWheel = Part.makeCylinder(b,h)
genevaWheel.translate(Base.Vector(-c,0,0))
stopArc = Part.makeCylinder(y, h)
stopArc.rotate(Base.Vector(-c,0,0),Base.Vector(0,0,1),(180/n))
for i in range(int(n)):
stopArc.rotate(Base.Vector(-c,0,0),Base.Vector(0,0,1),(360/n))
genevaWheel = genevaWheel.cut(stopArc)
slotLength = Part.makeBox(s,(2*w),h)
slotLength.translate(Base.Vector(-a,-w,0))
slotRadius = Part.makeCylinder(w,h)
slotRadius.translate(Base.Vector(-a,0,0))
slot=slotLength.fuse(slotRadius)
for i in range(int(n)):
slot.rotate(Base.Vector(-c,0,0),Base.Vector(0,0,1),(360/n))
genevaWheel = genevaWheel.cut(slot)
# Display Result
Part.show(driveCrank)
Part.show(genevaWheel)
except:
FreeCAD.Console.PrintError("Unable to complete task. Please recheck your data entries.")
self.close()
def close(self):
self.dialog.hide()
def __init__(self):
self.dialog = None
self.dialog = QtGui.QDialog()
self.dialog.resize(240,100)
self.dialog.setWindowTitle("Geneva Wheel Macro")
la = QtGui.QVBoxLayout(self.dialog)
DCR = QtGui.QLabel("Drive Crank Radius ( A )")
la.addWidget(DCR)
self.dCr = QtGui.QLineEdit()
la.addWidget(self.dCr)
#GWR = QtGui.QLabel("Geneva Wheel Radius ( B )")
#la.addWidget(GWR)
#self.gWr = QtGui.QLineEdit()
#la.addWidget(self.gWr)
DPD = QtGui.QLabel("Drive Pin Radius ( C )")
la.addWidget(DPD)
self.dPd = QtGui.QLineEdit()
la.addWidget(self.dPd)
GWT = QtGui.QLabel("Geneva Wheel Tolerance ( D )")
la.addWidget(GWT)
self.gWt = QtGui.QLineEdit()
la.addWidget(self.gWt)
GWH = QtGui.QLabel("Geneva Wheel Height")
la.addWidget(GWH)
self.gWh = QtGui.QLineEdit()
la.addWidget(self.gWh)
GWN = QtGui.QLabel("Driven Slot Quantity")
la.addWidget(GWN)
self.gWn = QtGui.QLineEdit()
la.addWidget(self.gWn)
#
# - Include graphic image in dialog window -
#
# Insure that image is in the same directory as this Macro.
# Image should be available from same source as Macro.
#
import os
macro_dir = os.path.dirname(__file__)
self.PiX = QtGui.QLabel()
self.PiX.setPixmap(os.path.join(macro_dir, "GW_Dim.png"))
hbox = QtGui.QHBoxLayout()
hbox.addStretch()
hbox.addWidget(self.PiX)
hbox.addStretch()
la.addSpacing(15)
la.addLayout(hbox)
la.addSpacing(15)
# - End Image layout -
okbox = QtGui.QDialogButtonBox(self.dialog)
okbox.setOrientation(QtCore.Qt.Horizontal)
okbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
la.addWidget(okbox)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("accepted()"), self.Ggear)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("rejected()"), self.close)
QtCore.QMetaObject.connectSlotsByName(self.dialog)
self.dialog.show()
self.dialog.exec_()
p()
Links
This Macro is based on Macro Geneva Wheel