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LaserClamp: Improve design 

Extend bottom bracket and add hook
Use only one bottom bracket
Add finger ring to allow easier placement
Improve top hook
This commit is contained in:
Florian Festi 2018-11-04 21:39:07 +01:00
parent 0f999a89ad
commit d85fa4e849
1 changed files with 24 additions and 15 deletions
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39
boxes/generators/laserclamp.py
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@ -19,6 +19,12 @@ from boxes import *
class LaserClamp(Boxes): class LaserClamp(Boxes):
"""A clamp to hold down material to a knife table""" """A clamp to hold down material to a knife table"""
description = """You need a tension spring of the proper length to make the clamp work.
Increace extraheight to get more space for the spring and to make the
sliding mechanism less likely to bind. You may need to add some wax on the
parts sliding on each other to reduce friction.
"""
ui_group = "Misc" ui_group = "Misc"
def __init__(self): def __init__(self):
@ -38,24 +44,25 @@ class LaserClamp(Boxes):
def topPart(self, l, move=None): def topPart(self, l, move=None):
t = self. thickness t = self. thickness
tw, th = 10*t, l+4*t tw, th = 12*t, l+4*t
if self.move(tw, th, move, True): if self.move(tw, th, move, True):
return return
self.moveTo(4*t, 0) self.moveTo(8*t, 0)
self.rectangularHole(t, 2*t+l/2, 1.1*t, l) self.rectangularHole(t, 2*t+l/2, 1.05*t, l)
self.polyline(2*t, (90, t), l+t, -90, 2*t, 90, 0, self.polyline(2*t, (90, t), l+1.5*t, (-90, 0.5*t),
(90, 2*t), 3*t, (90, t), 2*t, -90, 0, (180, 0.5*t), 0,
0, (-90, t), 0, 90, 0, (-180, 0.5*t), 0, 90, 0, (90, 1.5*t), 9*t,
(180, t), t, (-90, t), (180, 4*t), 2*t, (-90, t))
l-2*t, (90, t)) self.hole(-5*t, -3*t, 2.5*t)
self.polyline(l-5.5*t, (90, t))
self.move(tw, th, move) self.move(tw, th, move)
def bottomPart(self, h_min, h_extra, move=None): def bottomPart(self, h_min, h_extra, move=None):
t = self. thickness t = self. thickness
tw, th = 10*t, h_min+4*t tw, th = 14*t, h_min+4*t
if self.move(tw, th, move, True): if self.move(tw, th, move, True):
return return
@ -64,12 +71,13 @@ class LaserClamp(Boxes):
self.moveTo(2*t, 0) self.moveTo(2*t, 0)
self.fingerHolesAt(3*t, 2*t, h_min+h_extra, 90) self.fingerHolesAt(3*t, 2*t, h_min+h_extra, 90)
if h_extra: if h_extra:
self.polyline(4*t, (90,t), h_extra-2*t, (-90, t), 0, (90, 2*t), 0, 45) self.polyline(4*t, (90,t), h_extra-2*t, (-90, t))
else: else:
self.polyline(6*t, (90, 2*t), 0, 45) self.polyline(6*t)
self.polyline(*[ls, 90, ls, -90]*3) self.polyline(4*t, (90, 2*t), 3*t, 135, 2*ls, 45, 1*t, -90, 6*t, -90)
self.polyline(0, -45, h_min, (90, t), 2*t, (90, t),
h_min+h_extra-1*t, (-90, t), t, (180, t), self.polyline(h_min, (90, t), 2*t, (90, t),
h_min+h_extra-0*t, (-90, t), t, (180, t),
0, 90, 0, (-180, 0.5*t), 0 , 90) 0, 90, 0, (-180, 0.5*t), 0 , 90)
self.move(tw, th, move) self.move(tw, th, move)
@ -84,6 +92,7 @@ class LaserClamp(Boxes):
self.topPart(h_max+h_extra, move="right") self.topPart(h_max+h_extra, move="right")
self.bottomPart(h_min, h_extra, move="right") self.bottomPart(h_min, h_extra, move="right")
self.bottomPart(h_min, h_extra, move="right") self.roundedPlate(4*t, h_min+h_extra+4*t, edge="e", r=t, move="right",
callback=[lambda: self.fingerHolesAt(1*t, 2*t, h_min+h_extra)])
self.rectangularWall(1.1*t, h_min+h_extra, "efef") self.rectangularWall(1.1*t, h_min+h_extra, "efef")
self.close() self.close()