add pylele_nut

pylele_nut.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+"""
+    Pylele Nut
+"""
+
+import os
+import math
+
+from pylele_api import Shape
+from pylele_base import LeleBase
+from pylele_config import accumDiv, FIT_TOL, SEMI_RATIO, Implementation
+from pylele_utils import radians
+
+class LeleNut(LeleBase):
+    """ Pylele Nut Generator class """
+
+    def gen(self) -> Shape:
+        """ Generate Nut """
+
+        fitTol = FIT_TOL
+        fbTck = self.cfg.FRETBD_TCK
+        ntHt = self.cfg.NUT_HT
+        ntWth = self.cfg.nutWth + fbTck/4 + .5  # to be wider than fretbd
+        fWth = self.cfg.nutWth - 1  # to be narrower than fretbd
+        f0X = -fitTol if self.isCut else 0
+
+        f0Top = self.api.genRndRodY(ntWth, ntHt, 1/4)
+        f0TopCut = self.api.genBox(2*ntHt, 2*ntWth, fbTck).mv(0, 0, -fbTck/2)
+        f0Top = f0Top.cut(f0TopCut).mv(f0X, 0, fbTck)
+        f0Bot = self.api.genRndRodY(ntWth, ntHt, 1/4)
+        f0BotCut = self.api.genBox(2*ntHt, 2*ntWth, fbTck).mv(0, 0, fbTck/2)
+        f0Bot = f0Bot.cut(f0BotCut).scale(1, 1, fbTck/ntHt).mv(f0X, 0, fbTck)
+        nut = f0Top.join(f0Bot)
+
+        self.shape = nut
+
+        return nut
+
+def nut_main(args = None):
+    """ Generate Nut """
+    solid = LeleNut(args=args)
+    solid.export_args() # from cli
+
+    solid.export_configuration()
+
+    solid.exportSTL()
+    return solid
+
+def test_nut():
+    """ Test Nut """
+
+    component = 'nut'
+    tests = {
+        'cadquery': ['-i','cadquery'],
+        'blender' : ['-i','blender']
+    }
+
+    for test,args in tests.items():
+        print(f'# Test {component} {test}')
+        outdir = os.path.join('./test',component,test)
+        args += ['-o', outdir]
+        nut_main(args=args)
+
+if __name__ == '__main__':
+    nut_main()

pylele_test.py

@@ -14,6 +14,7 @@
 from pylele_fretboard_joint import test_fretboard_joint
 from pylele_top import test_top
 from pylele_strings import test_strings
+from pylele_nut import test_nut
 
 # assemblies
 from pylele_fretboard_assembly import test_fretboard_assembly
@@ -52,6 +53,11 @@ def test_strings(self):
         """ Test Strings """
         test_strings()
 
+    def test_nut(self):
+        """ Test Nut """
+        test_nut()
+
+
     ## Assemblies
     def test_fretboard_assembly(self):
         """ Test Fretboard Assembly """