270 lines
7.6 KiB
Python
270 lines
7.6 KiB
Python
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import wx
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from configtool.data import BSIZESMALL, reFloat
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class CalcScrew(wx.Dialog):
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def __init__(self, parent, cbUse):
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wx.Dialog.__init__(self, parent, wx.ID_ANY,
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"Steps calculator for screw driven axes",
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size = (400, 204))
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self.Bind(wx.EVT_CLOSE, self.onExit)
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self.use = cbUse
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labelWidth = 110
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sz = wx.BoxSizer(wx.VERTICAL)
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sz.AddSpacer((10, 10))
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lsz = wx.BoxSizer(wx.HORIZONTAL)
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st = wx.StaticText(self, wx.ID_ANY, "Step Angle:", size = (labelWidth, -1),
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style = wx.ALIGN_RIGHT)
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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stepAngles = ["1.8 (200 per revolution)", "0.9 (400 per revolution)",
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"7.5 (48 per revolution)"]
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self.stepAngleValues = [200, 400, 48]
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tc = wx.Choice(self, wx.ID_ANY, choices = stepAngles)
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tc.SetSelection(0)
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tc.Bind(wx.EVT_CHOICE, self.onChoice)
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lsz.Add(tc)
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tc.SetToolTipString("Step angle. Depends on your type of stepper motor.")
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self.tcStep = tc
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sz.Add(lsz)
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sz.AddSpacer((10, 10))
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lsz = wx.BoxSizer(wx.HORIZONTAL)
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st = wx.StaticText(self, wx.ID_ANY, "Microstepping:",
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size = (labelWidth, -1), style = wx.ALIGN_RIGHT)
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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microStepping = ["1 - full step", "1/2 - half step", "1/4 - quarter step",
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"1/8", "1/16", "1/32", "1/64", "1/128"]
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self.microSteppingValues = [1, 2, 4, 8, 16, 32, 64, 128]
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tc = wx.Choice(self, wx.ID_ANY, choices = microStepping)
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tc.Bind(wx.EVT_CHOICE, self.onChoice)
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tc.SetSelection(4)
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lsz.Add(tc)
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tc.SetToolTipString("Microstepping. Most boards allow to change this by "
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"setting jumpers. The value here must match the "
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"setting on the board in conjunction with the type "
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"of stepper driver chip.")
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self.tcMicroStepping = tc
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sz.Add(lsz)
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sz.AddSpacer((10, 10))
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lsz = wx.BoxSizer(wx.HORIZONTAL)
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st = wx.StaticText(self, wx.ID_ANY, "Screw Pitch (mm/rev):",
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size = (labelWidth, -1), style = wx.ALIGN_RIGHT)
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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tc = wx.TextCtrl(self, wx.ID_ANY, "2", style = wx.TE_RIGHT)
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tc.Bind(wx.EVT_TEXT, self.onTextCtrlFloat)
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lsz.Add(tc)
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tc.SetToolTipString("Screw pitch. Defined by the pitch of the screw.")
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self.tcScrewPitch = tc
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lsz.AddSpacer((5, 5))
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screwPresets = ["-", "M8 - metric (1.25 mm/rev)", "M6 - metric (1 mm/rev)",
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"M5 - metric (0.8 mm/rev)", "12 (12 mm/rev)",
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"16 (16 mm/rev)", "25 (25 mm/rev)",
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"5/15\"-18 imperial coarse (1.41111 mm/rev)",
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"3/16\"-20 imperial (1.270 mm/rev)",
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"1/4\"-16 ACME (1.5875 mm/rev)"]
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self.screwPresetValues = [-1, 1.25, 1.00, 0.8, 12.0, 16.0, 25.0, 1.41111,
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1.270, 1.5875]
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tc = wx.Choice(self, wx.ID_ANY, choices = screwPresets)
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tc.SetSelection(0)
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tc.Bind(wx.EVT_CHOICE, self.onPresetChoice)
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lsz.Add(tc)
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tc.SetToolTipString("Screw pitch presets.")
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self.tcPresets = tc
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sz.Add(lsz)
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sz.AddSpacer((10, 10))
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lsz = wx.BoxSizer(wx.HORIZONTAL)
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st = wx.StaticText(self, wx.ID_ANY, "Gear Ratio:", size = (labelWidth, -1),
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style = wx.ALIGN_RIGHT)
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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tc = wx.TextCtrl(self, wx.ID_ANY, "1", size = (40, -1), style = wx.TE_RIGHT)
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tc.Bind(wx.EVT_TEXT, self.onTextCtrlFloat)
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lsz.Add(tc)
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tc.SetToolTipString("Gear ratio. 1:1 if there is no gear.")
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self.tcRatioTop = tc
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lsz.AddSpacer((5, 5))
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st = wx.StaticText(self, wx.ID_ANY, ":")
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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tc = wx.TextCtrl(self, wx.ID_ANY, "1", size = (40, -1), style = wx.TE_RIGHT)
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tc.Bind(wx.EVT_TEXT, self.onTextCtrlFloat)
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lsz.Add(tc)
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tc.SetToolTipString("Gear ratio. 1:1 if there is no gear.")
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self.tcRatioBottom = tc
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sz.Add(lsz)
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sz.AddSpacer((30, 30))
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lsz = wx.BoxSizer(wx.HORIZONTAL)
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st = wx.StaticText(self, wx.ID_ANY, "Result:", size = (labelWidth, -1),
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style = wx.ALIGN_RIGHT)
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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tc = wx.StaticText(self, wx.ID_ANY, "", size = (300, -1),
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style = wx.ALIGN_LEFT)
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lsz.Add(tc)
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self.tcResult = tc
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sz.Add(lsz)
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lsz = wx.BoxSizer(wx.HORIZONTAL)
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st = wx.StaticText(self, wx.ID_ANY, "Resolution:", size = (labelWidth, -1),
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style = wx.ALIGN_RIGHT)
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lsz.Add(st)
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lsz.AddSpacer((5, 5))
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tc = wx.StaticText(self, wx.ID_ANY, "", size = (300, -1),
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style = wx.ALIGN_LEFT)
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lsz.Add(tc)
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self.tcResolution = tc
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sz.Add(lsz)
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sz.AddSpacer((20, 20))
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bsz = wx.BoxSizer(wx.HORIZONTAL)
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b = wx.Button(self, wx.ID_ANY, "Use for X", size = BSIZESMALL)
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self.Bind(wx.EVT_BUTTON, self.onUseForX, b)
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bsz.Add(b)
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self.bUseForX = b
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bsz.AddSpacer((5, 5))
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b = wx.Button(self, wx.ID_ANY, "Use for Y", size = BSIZESMALL)
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self.Bind(wx.EVT_BUTTON, self.onUseForY, b)
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bsz.Add(b)
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self.bUseForY = b
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bsz.AddSpacer((5, 5))
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b = wx.Button(self, wx.ID_ANY, "Use for Z", size = BSIZESMALL)
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self.Bind(wx.EVT_BUTTON, self.onUseForZ, b)
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bsz.Add(b)
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self.bUseForZ = b
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bsz.AddSpacer((5, 5))
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b = wx.Button(self, wx.ID_ANY, "Use for E", size = BSIZESMALL)
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self.Bind(wx.EVT_BUTTON, self.onUseForE, b)
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bsz.Add(b)
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self.bUseForE = b
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sz.Add(bsz, flag = wx.ALIGN_CENTER_HORIZONTAL)
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self.enableUseButtons(False)
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self.SetSizer(sz)
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self.Fit()
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self.calculate()
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def calculate(self):
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self.tcResult.SetLabel("")
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self.tcResolution.SetLabel("")
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self.enableUseButtons(False)
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s = self.tcStep.GetSelection()
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sv = self.stepAngleValues[s]
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try:
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sp = float(self.tcScrewPitch.GetValue())
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except:
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return
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try:
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ratioA = float(self.tcRatioTop.GetValue())
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except:
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return
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try:
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ratioB = float(self.tcRatioBottom.GetValue())
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except:
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return
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s = self.tcMicroStepping.GetSelection()
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msv = self.microSteppingValues[s]
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ratio = ratioA / ratioB
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steps = sv * msv
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resultmm = steps / sp / ratio
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self.result = int(resultmm * 1000.0)
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self.tcResult.SetLabel("%d steps/m (%.3f steps/mm)" %
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(self.result, resultmm))
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self.tcResolution.SetLabel("%.3f micrometers" % (1.0 / resultmm * 1000.0))
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self.enableUseButtons(True)
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def enableUseButtons(self, flag):
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self.bUseForX.Enable(flag)
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self.bUseForY.Enable(flag)
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self.bUseForZ.Enable(flag)
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self.bUseForE.Enable(flag)
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def onUseForX(self, evt):
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self.use('STEPS_PER_M_X', self.result)
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def onUseForY(self, evt):
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self.use('STEPS_PER_M_Y', self.result)
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def onUseForZ(self, evt):
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self.use('STEPS_PER_M_Z', self.result)
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def onUseForE(self, evt):
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self.use('STEPS_PER_M_E', self.result)
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def onPresetChoice(self, evt):
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s = self.tcPresets.GetSelection()
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sv = self.screwPresetValues[s]
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if sv < 0:
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return
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s = "%f" % sv
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s = s.rstrip("0")
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if s[-1] == ".":
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s += "0"
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self.tcScrewPitch.SetValue(s)
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def onChoice(self, evt):
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self.calculate()
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def onTextCtrlFloat(self, evt):
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tc = evt.GetEventObject()
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w = tc.GetValue().strip()
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if w == "":
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valid = False
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else:
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m = reFloat.match(w)
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if m:
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valid = True
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else:
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valid = False
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if valid:
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tc.SetBackgroundColour(wx.SystemSettings_GetColour(wx.SYS_COLOUR_WINDOW))
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else:
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tc.SetBackgroundColour("pink")
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tc.Refresh()
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self.calculate()
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evt.Skip()
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def onExit(self, evt):
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self.EndModal(wx.ID_OK)
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