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2 Commits

4 changed files with 124 additions and 73 deletions

View File

@ -166,8 +166,10 @@ class PlateLayout:
# compute coordinates and various measurements for fixed radii of plate and tubes
self.target_plate_radius = 160.0
self.target_center_hole_radius = 7.5
self.target_radius_1 = 50.5
self.target_radius_1 = 50.5 # should be 50 mm according to data sheet but in fact its a bit more than that..
self.target_radius_1_inner = 94.0/2.0
self.target_radius_2 = 20.0
self.target_radius_2_inner = 34.0/2.0
teeth = 200
D = 2 * self.target_plate_radius
@ -184,6 +186,7 @@ class PlateLayout:
# parameters for dispenser gears
self.dispenser_module = 1.0
plate_height = 8.0
dispenser_1_target_pitch_diameter_big = 50.0
dispenser_1_target_pitch_diameter_small = 15.0
dispenser_1_teeth_big = int(dispenser_1_target_pitch_diameter_big/self.dispenser_module)
@ -259,7 +262,8 @@ class PlateLayout:
p2 = dispenser_1_pitch_diameter_small
a1 = self.dispenser_module
a2 = self.dispenser_module
offset_1 = sqrt((p1 / 2 + p2 / 2) ** 2 - (p1 / 2 + a1) ** 2) - p2 / 2 - a2
h = plate_height/2.0
offset_1 = sqrt((p1 / 2 + p2 / 2) ** 2 - (p1 / 2 + a1 + h) ** 2) - p2 / 2 - a2
print("dispenser 1 offset = {}".format(offset_1))
print(" big circle tangent points: ")
@ -294,7 +298,7 @@ class PlateLayout:
self.tube_1_cuts[k]['tangent_point'] = t1
self.tube_1_cuts[k]['angle_deg'] = angle1_deg
self.tube_1_cuts[k]['length'] = dispenser_1_outer_diameter_small
self.tube_1_cuts[k]['width'] = 5.0
self.tube_1_cuts[k]['width'] = 4.0
plt.plot(cut_center[0], cut_center[1], 'o')
@ -321,7 +325,7 @@ class PlateLayout:
p2 = dispenser_2_pitch_diameter_small
a1 = self.dispenser_module
a2 = self.dispenser_module
offset_2 = sqrt((p1 / 2 + p2 / 2) ** 2 - (p1 / 2 + a1) ** 2) - p2 / 2 - a2
offset_2 = sqrt((p1 / 2 + p2 / 2) ** 2 - (p1 / 2 + a1 + h) ** 2) - p2 / 2 - a2
print("dispenser 2 offset = {}".format(offset_2))
print(" small circle tangent points: ")
@ -353,7 +357,7 @@ class PlateLayout:
self.tube_2_cuts[k]['tangent_point'] = t1
self.tube_2_cuts[k]['angle_deg'] = angle1_deg
self.tube_2_cuts[k]['length'] = dispenser_2_outer_diameter_small
self.tube_2_cuts[k]['width'] = 5.0
self.tube_2_cuts[k]['width'] = 4.0
plt.plot(cut_center[0], cut_center[1], 'o')
@ -408,7 +412,24 @@ class PlateLayout:
if output_all:
f_lines = self.output_whole(f_lines)
else:
f_lines = self.output_segment(f_lines, 2, split_at_big_circles=False)
f_lines += '<g>\n'
f_lines = self.output_segment(f_lines, 2, split_at_big_circles=True)
f_lines += '</g>\n'
# output other parts
r = np.linalg.norm(self.tube_1_coords[0]) - self.target_radius_1
f_lines += '<g>\n'
f_lines += svg_circle('1', 'center_ring_clamp', (0,0), r)
f_lines += svg_circle('2', 'center_ring_clamp', (0,0), self.target_center_hole_radius)
height = 5.0
width = 40.0
f_lines += svg_rect(x=-width/2.0, y=-height/2.0, width=width, height=height)
f_lines += '</g>\n'
f_lines += '<g>\n'
f_lines += svg_circle('1', 'center_ring', (0,0), r)
f_lines += svg_circle('2', 'center_ring', (0,0), self.target_center_hole_radius)
f_lines += '</g>\n'
f_lines.append('</svg>\n')
@ -417,6 +438,10 @@ class PlateLayout:
fw.writelines(f_lines)
fw.close()
pass
@ -452,13 +477,13 @@ class PlateLayout:
f_lines += svg_gear_marking(self.tube_1_tangents[k_next], self.tube_1_coords[k_next])
# cutout rectangle for big circles
f_lines += svg_rectangle(k_next, 'cut', self.tube_1_cuts[k_next])
f_lines += svg_rect_trans(k_next, 'cut', self.tube_1_cuts[k_next])
# gear pos for small circle
f_lines += svg_gear_marking(self.tube_2_tangents[k], self.tube_2_coords[k])
# cutout rectangle for small circles
f_lines += svg_rectangle(k, 'cut', self.tube_2_cuts[k])
f_lines += svg_rect_trans(k, 'cut', self.tube_2_cuts[k])
# first segment border
f_lines += svg_segment_border_inner(self.tube_1_angles[k], self.target_center_hole_radius,
@ -499,38 +524,38 @@ class PlateLayout:
f_lines += svg_arc(p1, p2, self.target_center_hole_radius, 0, 1)
# small circles arcs
f_lines += svg_half_circle(k, 'small circle', self.tube_2_coords[k], self.target_radius_2,
f_lines += svg_half_circle(k, 'small circle', self.tube_2_coords[k], self.target_radius_2_inner,
self.tube_2_angles[k])
f_lines += svg_half_circle(k_next, 'small circle', self.tube_2_coords[k_next], self.target_radius_2,
f_lines += svg_half_circle(k_next, 'small circle', self.tube_2_coords[k_next], self.target_radius_2_inner,
self.tube_2_angles[k_next], orientation_flag=0)
# big circle
f_lines += svg_circle(k, 'big circle', self.tube_1_coords[k_next], self.target_radius_1)
f_lines += svg_circle(k, 'big circle', self.tube_1_coords[k_next], self.target_radius_1_inner)
# gear pos for big circle
f_lines += svg_gear_marking(self.tube_1_tangents[k_next], self.tube_1_coords[k_next])
# cutout rectangle for big circles
f_lines += svg_rectangle(k, 'cut', self.tube_1_cuts[k_next])
f_lines += svg_rectangle(k, 'cut', self.tube_1_cuts[k_next_next])
f_lines += svg_rect_trans(k, 'cut', self.tube_1_cuts[k_next])
f_lines += svg_rect_trans(k, 'cut', self.tube_1_cuts[k_next_next])
# gear pos for small circle
f_lines += svg_gear_marking(self.tube_2_tangents[k_next], self.tube_2_coords[k_next])
# cutout rectangle for small circles
f_lines += svg_rectangle(k_next, 'cut', self.tube_2_cuts[k_next])
f_lines += svg_rect_trans(k_next, 'cut', self.tube_2_cuts[k_next])
# first segment border
f_lines += svg_segment_border_inner(self.tube_2_angles[k], self.target_center_hole_radius,
self.tube_2_coords[k], self.target_radius_2, puzzle_scale=0.5, placement=0.25)
self.tube_2_coords[k], self.target_radius_2_inner, puzzle_scale=0.5, placement=0.25)
f_lines += svg_segment_border_outer(self.tube_2_angles[k], self.target_plate_radius, self.plate_module,
self.tube_2_coords[k], self.target_radius_2)
self.tube_2_coords[k], self.target_radius_2_inner)
# second segment border
f_lines += svg_segment_border_inner(self.tube_2_angles[k_next], self.target_center_hole_radius,
self.tube_2_coords[k_next], self.target_radius_2, puzzle_scale=0.5, placement=0.25)
self.tube_2_coords[k_next], self.target_radius_2_inner, puzzle_scale=0.5, placement=0.25)
f_lines += svg_segment_border_outer(self.tube_2_angles[k_next], self.target_plate_radius, self.plate_module,
self.tube_2_coords[k_next], self.target_radius_2)
self.tube_2_coords[k_next], self.target_radius_2_inner)
# find outmost points for segment cut lines
@ -627,13 +652,13 @@ class PlateLayout:
# output cuts for big circles
for k, c in self.tube_1_cuts.items():
text = svg_rectangle(k, 'cut', c['center'], c['length'], c['width'], c['angle_deg'])
text = svg_rect_trans(k, 'cut', c)
f_lines = f_lines + text
pass
# output cuts for small circles
for k, c in self.tube_2_cuts.items():
text = svg_rectangle(k, 'cut', c['center'], c['length'], c['width'], c['angle_deg'])
text = svg_rect_trans(k, 'cut', c)
f_lines = f_lines + text
pass

View File

@ -9,7 +9,7 @@
xmlns="http://www.w3.org/2000/svg"
xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
sodipodi:docname="feeder_gears.svg"
sodipodi:docname="dispenser_gears.svg"
width="210mm"
height="297mm"
viewBox="0 0 744.09448819 1052.3622047"
@ -23,17 +23,17 @@
borderopacity="1.0"
inkscape:pageopacity="0.0"
inkscape:pageshadow="2"
inkscape:zoom="1.8101934"
inkscape:cx="196.01806"
inkscape:cy="474.03501"
inkscape:zoom="2.5600001"
inkscape:cx="116.84746"
inkscape:cy="648.90954"
inkscape:document-units="mm"
inkscape:current-layer="svg2"
showgrid="false"
inkscape:window-width="960"
inkscape:window-height="1028"
inkscape:window-x="960"
inkscape:window-width="1920"
inkscape:window-height="1056"
inkscape:window-x="0"
inkscape:window-y="24"
inkscape:window-maximized="0" />
inkscape:window-maximized="1" />
<defs
id="defs4" />
<metadata
@ -72,7 +72,7 @@
</g>
<g
info="N:16; Pitch:22.2632550254; Pressure Angle: 20.0"
transform="matrix(0.98261279,-0.18566662,0.18566662,0.98261279,416.37006,413.37433)"
transform="matrix(0.99144484,0.13052619,-0.13052619,0.99144484,402.83559,425.52773)"
inkscape:label="Gear16"
id="g4161">
<path
@ -89,38 +89,38 @@
id="circle4165" />
</g>
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:0.81840914px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 208.00782,413.69031 139.45312,0"
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1.18522573px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 208.00782,413.69031 292.47544,0"
id="path4205"
inkscape:connector-curvature="0" />
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 296.28906,412.90906 c 0.39063,-120.50782 0.39063,-120.50782 0.39063,-120.50782 C 417.1875,413.29968 417.1875,413.29968 417.1875,413.29968"
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:0.9883278px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="M 295.9019,425.20469 C 296.24829,292.4573 296.24829,292.4573 296.24829,292.4573 403.10616,425.63498 403.10616,425.63498 403.10616,425.63498"
id="path4212"
inkscape:connector-curvature="0" />
<text
xml:space="preserve"
style="font-style:normal;font-weight:normal;font-size:40px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
x="322.07031"
y="310.56531"
x="325.39062"
y="320.33093"
id="text4214"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4216"
x="322.07031"
y="310.56531"
x="325.39062"
y="320.33093"
style="font-size:6.25px">p1/2</tspan></text>
<text
xml:space="preserve"
style="font-style:normal;font-weight:normal;font-size:40px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
x="391.20636"
y="384.9657"
x="385.5423"
y="393.36414"
id="text4214-3"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4216-6"
x="391.20636"
y="384.9657"
x="385.5423"
y="393.36414"
style="font-size:6.25px">p2/2</tspan></text>
<text
xml:space="preserve"
@ -133,7 +133,7 @@
x="228.71094"
y="324.62781"
style="font-size:6.25px"
id="tspan4246"> p1/2 + a1</tspan><tspan
id="tspan4246"> p1/2 + a1 + h</tspan><tspan
sodipodi:role="line"
x="228.71094"
y="332.44031"
@ -141,27 +141,27 @@
id="tspan4248">(= Outside circle)</tspan></text>
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 351.95313,417.20593 c 0,4.10157 0,4.10157 0,4.10157"
d="m 338.67188,428.53405 c 0,4.10157 0,4.10157 0,4.10157"
id="path4252"
inkscape:connector-curvature="0" />
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:0.96795285px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 295.70311,419.35437 122.05746,0"
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:0.90801376px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 294.87447,430.40291 107.40902,0"
id="path4254"
inkscape:connector-curvature="0" />
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 375.58594,373.45593 c 4.88281,-3.71094 4.88281,-3.71094 4.88281,-3.71094"
d="m 364.84375,383.41687 c 4.88281,-3.71094 4.88281,-3.71094 4.88281,-3.71094"
id="path4258"
inkscape:connector-curvature="0" />
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 294.92188,292.01062 c 3.51562,-2.14844 3.51562,-2.14844 3.51562,-2.14844"
d="m 293.95513,292.83926 c 3.51562,-2.14844 3.51562,-2.14844 3.51562,-2.14844"
id="path4260"
inkscape:connector-curvature="0" />
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 415.18699,415.16107 c 4.29687,-3.51562 4.29687,-3.51562 4.29687,-3.51562"
d="m 401.12449,427.46576 c 4.29687,-3.51562 4.29687,-3.51562 4.29687,-3.51562"
id="path4262"
inkscape:connector-curvature="0" />
<flowRoot
@ -187,41 +187,41 @@
x="51.5625"
y="596.11218"
style="font-size:6.25px" /></flowRegion><flowPara
id="flowPara4278">(p1/2 + p2/2)**2 = (p1/2 + a1)**2 + (p2/2 + a2 + x)**2</flowPara><flowPara
id="flowPara4278">(p1/2 + p2/2)**2 = (p1/2 + a1 + h)**2 + (p2/2 + a2 + x)**2</flowPara><flowPara
id="flowPara4374" /><flowPara
id="flowPara4372"> =&gt; Offset x = sqrt((p1/2 + p2/2)**2 - (p1/2 + a1)**2) - p2/2 - a2</flowPara></flowRoot> <text
xml:space="preserve"
style="font-style:normal;font-weight:normal;font-size:40px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
x="324.21875"
y="428.14343"
x="323.4375"
y="435.37"
id="text4296"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4298"
x="324.21875"
y="428.14343"
x="323.4375"
y="435.37"
style="font-size:6.25px">x</tspan></text>
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 295.70313,417.49892 c 0,4.10157 0,4.10157 0,4.10157"
d="m 295.50782,427.91413 c 0,4.10157 0,4.10157 0,4.10157"
id="path4252-7"
inkscape:connector-curvature="0" />
<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="m 417.77344,417.10829 c 0,4.10157 0,4.10157 0,4.10157"
d="m 402.92969,427.45985 c 0,4.10157 0,4.10157 0,4.10157"
id="path4252-5"
inkscape:connector-curvature="0" />
<text
xml:space="preserve"
style="font-style:normal;font-weight:normal;font-size:40px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
x="373.82812"
y="427.36218"
x="355.07812"
y="435.56531"
id="text4321"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4323"
x="373.82812"
y="427.36218"
x="355.07812"
y="435.56531"
style="font-size:6.25px">p2/2 + a2</tspan></text>
<flowRoot
xml:space="preserve"
@ -239,7 +239,8 @@
id="flowPara4333">p2: Pitch diameter gear 2</flowPara><flowPara
id="flowPara4335">a1: Addendum gear 1 = module 1</flowPara><flowPara
id="flowPara4337">a2: Addendum gear 2 = module 2</flowPara><flowPara
id="flowPara4376">x : Offset</flowPara></flowRoot> <flowRoot
id="flowPara4376">x : Offset</flowPara><flowPara
id="flowPara4212">h : half of the plate height</flowPara></flowRoot> <flowRoot
xml:space="preserve"
id="flowRoot4360"
style="font-style:normal;font-weight:normal;font-size:40px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"><flowRegion
@ -305,7 +306,7 @@
</g>
<g
info="N:53; Pitch:16.6974412691; Pressure Angle: 25.0"
transform="translate(224.50825,840.97022)"
transform="translate(147.94575,906.59522)"
inkscape:label="Gear53"
inkscape:transform-center-x="-0.086406844"
id="g6277">
@ -412,4 +413,19 @@
x="0"
style="font-style:normal;font-weight:normal;font-size:13px;font-family:'Bitstream Vera Sans', sans-serif;text-align:center;text-anchor:middle;fill:#f6921e">Base diameter: 35.346 mm</text>
</g>
<path
inkscape:connector-curvature="0"
id="path4208"
d="m 206.90296,426.67235 292.47544,0"
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1.18346453;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:1.18346453, 2.36692905;stroke-dashoffset:0;stroke-opacity:1" />
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inkscape:connector-curvature="0"
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<path
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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</svg>

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View File

@ -8,11 +8,18 @@ Lasercut segments for plate. Profile: FLB_Sperrholz_4mm_Natur_new
Important: SVG produced by python script needs to be openend, transformed and saved in inkscape, otherwise import in CorelDraw fails
In progress:
- automate generation of plate segment
TODO:
- stack 2 plates for better stability (add cuts at small circles)
TODO:
- add displacement between gear cuts and circles to have more stability at the cuts
- second ring above the first plate to fix the containers and hide the gear mechanic (or manufacure them from acrylic to show the mechanic)
- think about if stacked plate is to thick for a single gear (i.e. we may need two gears in order to transfer motion from below the plate to dispensers)
- hole for hinges of big dispenser gears (only if necessary)
- shovels for dispensers by cutting segments from a sphere
DONE:
- center ring for holding the plates
- make circles for lower plate of the two plates a bit smaller s.t. tube are perfectly set into the upper plate and fixed by the lower plate
- stack 2 plates for better stability (add cuts at small circles)
- automate generation of plate segment
- connectors for segments (jigsaw puzzle style)
- think about if stacked plate is to thick for a single gear (i.e. we may need two gears in order to transfer motion from below the plate to dispensers) -> solved by moving hinge point of the gear in between the two plates

View File

@ -161,14 +161,7 @@ def svg_arc(p1, p2, r, large_arc, sweep):
return text
def svg_rectangle(id, name, c):
center = c['center']
width = c['length']
height = c['width']
angle = c['angle_deg']
x = np.sqrt(center[0] ** 2 + center[1] ** 2) - width / 2
y = - height
def svg_rect(x, y, width, height, angle=0.0):
text = ['<g transform="rotate({})">\n '
'<rect x="{}mm" y="{}mm" width="{}mm" height="{}mm" style="fill:none;stroke-width:0.1mm;stroke:rgb(0,0,0)" />\n '
'</g>\n'
@ -176,6 +169,16 @@ def svg_rectangle(id, name, c):
return text
def svg_rect_trans(id, name, c):
center = c['center']
width = c['length']
height = c['width']
angle = c['angle_deg']
x = np.sqrt(center[0] ** 2 + center[1] ** 2) - width / 2
y = - height
return svg_rect(x, y, width, height, angle)
def svg_line(p1, p2, width=1.0):
text = ['<line x1="{}mm" y1="{}mm" x2="{}mm" y2="{}mm" style="stroke:rgb(0,0,0);stroke-width:{}mm" />'.format(p1[0],