-
Notifications
You must be signed in to change notification settings - Fork 118
/
modular_hose.scad
231 lines (216 loc) · 8.94 KB
/
modular_hose.scad
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
//////////////////////////////////////////////////////////////////////////
// LibFile: modular_hose.scad
// Modular hose segment and attachment ends.
// Includes:
// include <BOSL2/std.scad>
// include <BOSL2/modular_hose.scad>
// FileGroup: Parts
// FileSummary: Modular flexible hose segments.
//////////////////////////////////////////////////////////////////////////
// Section: Modular Hose Parts
_modhose_small_end = [
turtle([
"left", 90-38.5, // 1/4" hose
"arcsteps", 12,
"arcleft", 6.38493, 62.15,
"arcsteps", 4,
"arcleft", .5, 90+38.5-62.15,
"move", .76,
"left", 67.5,
"move", .47,
"left", 90-67.5,
"move", 4.165,
"right", 30,
"move", 2.1
],
state=[4.864,0]),
turtle([ // 1/2" hose
"left", 90-41,
"arcsteps", 16,
"arcleft", 10.7407, 64.27,
"arcsteps", 4,
"arcleft", .5, 90+41-64.27,
"move", .95-.4,
"left", 45,
"move", .4*sqrt(2),
"left",45,
"move", 7.643-.4,
"right", 30,
"move", 4.06
],
state=[8.1, 0]),
turtle([ // 3/4" hose
"left", 90-30.4,
"arcsteps", 16,
"arcleft", 13.99219,53,
"arcsteps", 4,
"arcleft", .47,90-53+30.4,
"move", .597,
"left",
"move", 9.908-1.905/tan(25) +3.81*cos(30), // Change to 25 deg angle
"right", 25, // to remove narrow point in wall
"move",1.905 /sin(25),
],
state=[11.989,0])
];
_modhose_big_end = [
turtle([ // 1/4" hose
"left", 90-22,
"move", 6.5,
"left",.75,
"arcsteps", 8,
"arcleft", 6.5, 37.3,
"setdir",90,
"move", .21,
"right",
"move", 1.24,
"right", 45,
"move", .7835,
"right", 19,
"move", 1.05,
"setdir", -90,
"move", 1,
"right", 22,
"move", 8.76
],
state = [3.268,0]),
turtle([ // 1/2" hose
"left",
"right", 22,
"move", 9,
"arcsteps", 8,
"arcleft", 11, 36.5,
"setdir",90,
"move",2-1.366,
"right",
"move",.91,
"arcsteps", 4,
"arcright", 1.25, 90,
"move", 2.2,
"arcsteps", 8,
"arcright", 13, 22.4,
"move", 8.73
],
state=[6.42154, 0]),
turtle([ // 3/4" hose
"left", 90-22,
"move", 7.633,
"arcsteps", 16,
"arcleft", 13.77, 35.27,
"setdir", 90,
"move", 1.09,
"right",
"move",1.0177,
"right", 45,
"move", 1.009,
"right", 77.8-45,
"move", .3,
"arcright", 15.5, 34.2,
"move", 6.47
],
state=[9.90237,0])
];
_modhose_waist = [1.7698, 1.8251, 3.95998];
// Module: modular_hose()
// Synopsis: Creates modular hose parts.
// Topics: Modular Hose, Parts
// See Also: modular_hose_radius(), tube()
// Usage:
// modular_hose(size, type, [clearance], [waist_len], [anchor], [spin], [orient]) [ATTACHMENTS];
// Description:
// Construct moduler hose segments or modular hose ends for connection to standard
// modular hose systems. The 1/4", 1/2" and 3/4" sizes are supported and you can
// produce just one end to make a mount or end attachment to a modular hose,
// or you can make modular hose segments. To make assembly possible with printed
// parts you can add clearances that make the ball end smaller and the socket end
// larger. These work by simply increasing the radius of the whole end by the specified
// amount. On a Prusa printer with PETG, a clearance of 0.05 allows the 3/4" hose parts to mate
// with standard modular hose or itself. A clearance of 0.05 to 0.1 allows the 1/2" parts to mate with
// standard hose, and with clearance 0 the 1/4" parts will mate with standard hose. Note that clearance values
// are different for the different sizes. You will have to experiment with your machine and materials. Small
// adjustments will change the stiffness of the connection.
// Arguments:
// size = size of modular hose part, must be 1/4, 1/2 or 3/4.
// type = type of part to make, either "segment", "socket" (or "big"), or "ball" (or "small")
// clearance = clearance to make assembly possible. Either a scalar to apply the same to both ends or a vector [small,large] to apply different clearances to the two ends. Default: 0
// waist_len = size of central "waist" of the part. Default: standard length.
// Example:
// modular_hose(1/4,"segment");
// right(25)modular_hose(1/2,"segment");
// right(60)modular_hose(3/4,"segment");
// Example: A mount point for modular hose
// cylinder(h=10, r=20)
// attach(TOP) modular_hose(1/2, "ball", waist_len=15);
// Example: Mounting plate for something at the end of the hose
// cuboid([50,50,5])
// attach(TOP) modular_hose(3/4, "socket", waist_len=0);
function modular_hose(size, type, clearance=0, waist_len, anchor=BOTTOM, spin=0,orient=UP) = no_function("modular_hose");
module modular_hose(size, type, clearance=0, waist_len, anchor=BOTTOM, spin=0,orient=UP)
{
clearance = force_list(clearance,2);
ind = search([size],[1/4, 1/2, 3/4])[0];
sbound =
assert(ind!=[], "Must specify size as 1/4, 1/2 or 3/4")
pointlist_bounds(_modhose_small_end[ind]);
bbound = pointlist_bounds(_modhose_big_end[ind]);
smallend =
assert(is_vector(clearance,2), "Clearance must be a scalar or length 2 vector")
move([-clearance[0],-sbound[0].y],p=_modhose_small_end[ind]);
bigend = move([clearance[1], -bbound[0].y], p=_modhose_big_end[ind]);
midlength = first_defined([waist_len, _modhose_waist[ind]]);
dummy = assert(midlength>=0,"midlength must be nonnegative");
goodtypes = ["small","big","segment","socket","ball"];
shape =
assert(in_list(type,goodtypes), str("type must be one of ",goodtypes))
type=="segment"? concat(back(midlength,p=smallend),yflip(p=bigend))
: type=="small" || type=="ball" ?
concat(back(midlength,p=smallend),
[[last(smallend).x,0],[ smallend[0].x,0]])
: concat( back(midlength,p=bigend),
[[last(bigend).x,0],[ bigend[0].x,0]]);
bounds = pointlist_bounds(shape);
center = mean(bounds);
attachable(anchor,spin,orient,l=bounds[1].y-bounds[0].y, r=bounds[1].x)
{
rotate_extrude(convexity=4)
polygon(fwd(center.y,p=shape));
children();
}
}
// Function: modular_hose_radius()
// Synopsis: Returns the waist radius of the given modular hose size.
// Topics: Modular Hose, Parts
// See Also: modular_hose(), tube()
// Usage:
// r = modular_hose_radius(size, [outer]);
// Description:
// Returns the inner (or outer) diameter of the waist section
// of the modular hose to enable hollowing out connecting channels.
// Note: diameter is accurate to about 1e-4.
// Arguments:
// size = size of hose part, must be 1/4, 1/2 or 3/4
// outer = set to true to get the outer diameter.
// Example(3D):
// $fn=64;
// back_half()
// diff("remove")
// cuboid(50){
// attach(TOP) modular_hose(1/2, "ball");
// up(0.01)position(TOP+RIGHT)tag("remove")
// rot(180)
// xrot(-90)
// rotate_extrude(angle=135)
// right(25)
// circle(r=modular_hose_radius(1/2));
// }
function modular_hose_radius(size, outer=false) =
let(
ind = search([size],[1/4, 1/2, 3/4])[0]
)
assert(ind!=[], "Must specify size as 1/4, 1/2 or 3/4")
let(
b = select(_modhose_big_end[ind], [0,-1]),
s = select(_modhose_small_end[ind], [0,-1])
)
outer ? b[1][0] : b[0][0];
// vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap