greatly appreciate it!!
You can write the number of the question and write your answer next to it, example:
1) a
2) c
3) a) Washington University in St. Louis
4) 2 weeks (1week+1week shipping)
5) 130
6) b
7) b
The survey questions are as follows:
1)
Did you 3D print before?
5)
How much did it cost (in dollars)?
a.
Yes, for a school project
a.
Between 20 & 50
b.
Yes, for a personal project
b.
Between 50 & 80
c.
Between 80 & 120
2)
Print size
d.
Please specify if otherwise: _____ dollars
a.
Between 2 & 6 cubic inches
b.
Between 6 & 12 cubic inches
6)
Do you think the price was expensive?
c.
Between 12 & 20 cubic inches
a.
Not at all
d.
Please specify if otherwise: ____cubic inches
b.
A little bit expensive
c.
Very expensive
3)
Where did you print your object?
a.
School
7)
Were you satisfied with the printed object?
b.
Outside school: _________________
a.
Yes, it was a great print without problems
b.
Not bad, some issues
4)
How long did it take to print?
c.
I was not satisfied, very bad quality
a.
___ days
b.
___ weeks
Thank you very much to all!!
PS: If you did many 3D prints, you can post multiple answers.
Wassef…
both my plotter/cutter and wide format printer. I had been running the plotter from my main work laptop - a Win10 machine via the plotters USB port. As it turns out you can't get Win XP drivers for this USB connection so I needed another solution.
I tried to use the plotters DB25 serial port connection using an old DB9 to DB25 modem cable I had in my collection = no luck the plotter wouldn't talk. A bit more research and it turns out these plotters need a 'null modem' cross over cable to operate. I found a pic of the correct wiring online and made up my own with some cable and connectors from the local electronics hobby shop.
With this hooked up and using Hyperterminal I was able to fire some codes to the plotter directly and get a response back - winning!
At this point I got my original code working with the 'net use' redirect from LPT1 to COM1.
HOWEVER - being that the plotter was now on a COM port there are a few more interesting things you can do with it - one is being able to read the paper size/cut area from the printer.
So what I needed to to was find a way to send and receive data to/from the plotter using the serial port.
A bit of research into .NET's serial port interface and using a bunch of small pieces of test code I have manged to completely re-jig this driver.
Upgrades include:
- Direct Serial Port comms using Null Modem cable (a USB to serial adaptor + null modem should also work)
- Plot area read from the plotter - a rectangle the size of the plot area is placed on a separate layer and coloured red
- Testing to see if selected plotting curves are both closed and inside of the cutting area - with errors shown and exiting if they are not right.
- After plot 'parking' of the plot head at the end of the cut items + an adjustable offset (currently requires manual resetting of origin on the plotter before for next cut)
Great thing is it is now 100% running within Rhino Python - no DOS command line calls = no flashing up of the CMD wind. Also no temp files needed on the HDD and no limit to number of curves that can be plotted - tested with 200 or so with no issues.
Overall very happy with whole project - have learnt a LOT about Python and .NET interfacing AND ended up with a very handy/useful tool.
Cheers
DK
# This code is a WIP # It plots directly to a DGI Plotter# via the serial port
import System.IO.Ports as Portsimport rhinoscriptsyntax as rsimport time
#Some setup valuescom_port = 'COM1' #change to match plotter port baud_rate = 9600 #change to match plotter settingplotter_step = .025 #mmfinsh_offset = 10 #mm
#Delete old cutting area and cut objectsif rs.IsLayer('Cutting Area'): rs.PurgeLayer('Cutting Area')if rs.IsLayer('Cutting Objects'): rs.PurgeLayer('Cut Objects')
#Setup Serial PortMyport = Ports.SerialPort(com_port)Port_Write = Ports.SerialPort.WriteMyport.BaudRate = baud_rateMyport.ReadTimeout=5000 #5 secsMyport.Close()Myport.Open()
#Setup PlotterPort_Write(Myport, 'PU;PA0,0;IN;\n')Port_Write(Myport, 'SP1;\n')Port_Write(Myport, 'PA;\n')time.sleep(2)
#Read the Paper size from PlotterPort_Write(Myport, 'OH;') #HPGL read limits codetime.sleep(2)
return1 = ''papersize = ''count = 0char_in_buffer = 0chars_in_buffer = Ports.SerialPort.BytesToRead.GetValue(Myport)
if chars_in_buffer == 0: print 'Plotter not ready' Myport.Close() exit()
while (count < chars_in_buffer): return1 = Myport.ReadChar() papersize = papersize + chr(return1) count = count + 1
papersize = papersize.split(",")rect1 = (float(papersize[2])*plotter_step)rect2 = (float(papersize[3])*plotter_step)
print 'Cutting area = ' + str(rect1) + 'x' + str(rect2)
#place cutting area curve on its own layer, make it red and lock itplane = rs.WorldXYPlane()cutting_area = rs.AddRectangle( plane, (rect1), (rect2))rs.AddLayer (name='Cutting Area', color=(255,0,0), visible=True, locked=True, parent=None)rs.ObjectLayer(cutting_area, 'Cutting Area')
#get plotting objects
allCurves = rs.GetObjects("Select curves to plot", rs.filter.curve)
#test to see if these are closed curves - exit if not
for curve in allCurves: test_closed = rs.IsCurveClosed(curve) if test_closed == 0: print "One or move of these curves are not closed" Myport.Close() exit()
#test to see if these are inside cutting area - exit if not
for curve in allCurves: test_inside = rs.PlanarClosedCurveContainment(curve, cutting_area)
if test_inside==0 or test_inside==1: print "One or more of these curves are outside of cut area" Myport.Close() exit()
#All ok - convert to points and send data to printer
rs.AddLayer (name='Cut Objects', color=(0,255,0), visible=False, locked=True, parent=None)
for curve in allCurves: Port_Write(Myport, 'PU;PA;SP1;\n') polyline = rs.ConvertCurveToPolyline(curve,angle_tolerance=5.0, tolerance=0.025, delete_input=False, min_edge_length=0, max_edge_length=0) points = rs.CurveEditPoints(polyline) rs.ObjectLayer(polyline, 'Cut Objects')
# PU to the first point x = points[0][0] y = points[0][1] Port_Write(Myport, 'PU' + str(int(x / plotter_step)) + ',' + str(int(y / plotter_step)) + ';\n') # PD to every subsequent point i = 1 while i < len(points): x = points[i][0] y = points[i][1] Port_Write(Myport, 'PD' + str(int(x / plotter_step)) + ',' + str(int(y / plotter_step)) + ';\n') i += 1
Port_Write(Myport,'PU;\n')
#find the far end of the cutbox = rs.BoundingBox(allCurves)far_end = str(box[1])far_end = far_end.split(",")far_end = far_end[0]far_end = float(far_end)/plotter_stepfar_end = (int(far_end))+ finsh_offsetfar_end = str(far_end)print (far_end)
#return plotter home and close portPort_Write(Myport, 'PU;PA' + far_end + ',0;IN;\n')Port_Write(Myport, 'SP1;\n')Port_Write(Myport, 'PA;\n')Myport.Close()time.sleep(10)…
whole design intent, but this is what Inventor is good at. The way it packages bits of 'scripted' components into 'little models' that can be stored and re-assembled is central to MCAD working.
The Inventor model shown is almost 5 years old. We don't model like that any more, however it does offer a good idea of general MCAD modeling approaches.
iParts is useful in certain situations, it could've been useful in the above model, its usefulness is often in function of the quantity of variants/configurations.
So much is scripted in GH, maybe it should also be possible to script/define/constrain/assist the placement/gluing of the results?
...
Starting point: I think we are talking across purposes. AFAIK, the solving sequence of GH's scripted components is fixed. It won't do circular dependencies... without a fight. The inter-component dependencies not 'managed' like constraints solvers do for MCAD apps.
Components and assemblies are individual files in MCAD.
Placement of these within assemblies in MCAD is a product of matrix transforms and persistent constraints. There is no bi-directional link, the link is unidirectional (downflow only), because of the use of proxies.
Consequently, scripting the placement of components is irrelevant in GH, unless you decide that each component needs to be contained in its own separate file.
This also brings up the point that generating components and assemblies in MCAD is not as straightforward. In iParts and iAssemblies, each configuration needs to be generated as a "child" (the individual file needs to be created for each child) before those children can be used elsewhere.
You notice the dilemma, if you generate 100 parts, and then you realize you only need 20, you've created 80 extra parts which you have no need for, thus generating wasteful data that may cause file management issues later on.
GH remains in a transient world, and when you decide to bake geometry (if you need to at all), you can do that in one Rhino file, and save it as the state of the design at that given moment. Very convenient for design, though unacceptable for most non-digital manufacturing methods, which greatly limits Rhino's use for manufacturing unless you combine it with an MCAD app.
One of the reasons why the distributed file approach makes perfect sense in MCAD, is that in industry you deal with a finite set of objects. Generative tools are usually not a requirement. Most mechanical engineers, product engineers and machinists would never have any use for that.
The other thing that MCAD apps like Inventor have, is the 'structured' interface that offers up all that setting out information like the coordinate systems, work planes, parameters etc in a concise fashion in the 'history tree'. This will translate into user speed. GH's canvas is a bit more freeform. I suppose the info is all there and linked, so a bit of re-jigging is easy. Also, see how T-Flex can even embed sliders and other parameter input boxes into the model itself. Pretty handy/fast to understand, which also means more speed.
True. As long as you keep the browser pane/specification tree organized and easy to query.
:)
Would love to understand what you did by sketching.
I'll start by showing what was done years ago in the Inventor model, and then share with you what I did in GH, but in another post.
Let's use one of the beams as an example:
We can isolate this component for clarity.
Notice that I've highlighted the sectional sketch with dimensions, and the point of reference, which is in relation to the CL of the column which the beam bears on. The orientation and location of the beam is already set by underlying geometry.
Here's a perspective view of the same:
The extent of the beam was also driven by reference geometry, 2 planes offset from the beam's XY plane, driven by parameters from another underlying file which serves as a parameter container:
Reference axes and points are present for all other components, here are some of them:
It starts getting cluttered if you see the reference planes as well:
Is I mentioned earlier, over time we've found better ways to define and associate geometry, parameters, manage design change, improving the efficiency of parametric models. But this model is a fair representation of a basic modeling approach, and since an Inventor-GH comparison is like comparing apples and oranges anyways, this model can be used to understand the differences and similarities, for those interested.
I haven't even gotten to your latest post yet, I will eventually.…
Added by Santiago Diaz at 10:36am on February 26, 2011
he picture (4).
Previously, I had a problem with generating intersections between the two directions of the beams, but a colleague helped me by extending beams, so there was no problem with lines of intersection. But this solution has generated curl (5) at the highest vertex geometry, which I ignored in order to repair it before printing, perhaps this mean my problem with my beam spread properly. Only when the beams is 19, does not jump no problem, but I still can not distribute them properly.
(1)
(2)
(3)
(4)
(5)
I tried to show as simply as possible by removing or signing my code in GHX file.
Thank you in advance for your help
…
work with color to fit it into this logic (porous structure)?the range of colors: from white to yellow, orange, red. to blackis not so nice, saying, does not match to the design of the house.So there for it should only show the material what carries this pattern.So my question in yours case:i think that the picture of you must be thought as invert, so that it's become functional as well. if you thought this as invert,than you musst icrease the surface division,so that the rays of the sun can be disturbed to penetrate the house.that is a good the example:http://www.detail.de/inspiration/fuenf-hoefe-in-muenchen-100701.htmlin your case, the function of the patterns would get parametric significance. where more sunlight, consequently a denser pattern, and of course vice versa.therefore, the attractor should be the solar/sun system.http://digitalsubstance.wordpress.com/2011/12/07/facade-porosity-ad...What do you mean, i still see a version of you?http://www.youtube.com/watch?v=JoqDYcCDOTgThanks…
roduced the same error.
I tried to run them again with the file already open and I got this (I imagine predictable) error:
Sorry! But the number of available CPUs on your machine is 4.
Honeybee set the number of CPUs to 4.
Grid-based Radiance simulation
The component is checking ad, as, ar and aa values. This is just to make sure that the results are accurate enough.
Good to go!
Current working directory is set to: C:\ladybug\Parametric_Shading_Wall\psw_z0.25_t.025_y.2_r90_m3_lux\gridBasedSimulation\
Failed to remove the old directory.
WindowsError(32, 'The process cannot access the file because it is being used by another process')
Failed to read the results!
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
Runtime error (PythonException): Failed to read the results!
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
Traceback:
line 336, in script
@Mostapha, if it is indeed a different issue, what do you think it could be?
Thanks again,
-Nicholas…
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POSTS
…
ike using something like the Z vector, but technically you can use any vector you want. This vector will actually determine the static rotatation of all the planes, so you can control that here if you like. One important thing that I've noticed is that the closer the vector is to the plane of the curve or if its too similar to one of the tangent vectors, the more likely you'll have "flipping"
2) Take the cross product between the tangent and the static vector. This will be your first perpendicular vector, which you can use for the X component of the plane.
3) Take the cross product between the tangent and the result of the previous cross product. Use this result as the Y component of the plane. All three components (X, Y, and Z (which is the tangent vector)) are all perpendicular to each other now.
After you've done that you should have planes that decrease twisting. If your curve is not planar, then there will always be some twisting in the frames, but it will be minimal enough to use them effectively.
There also may be "flipping" within the frames, which means one (or both) of two things. First, you could have planes that have reversed their vectors, so the X vector is properly oriented, but pointing down when it should be pointing up. Second, the X and Y vectors could have potentially swapped, so that Y "should" be X and X "should" be Y. In order to check these things, you'll need to do a few tests. The first one is find out whether the vector (X or Y) of the plane your testing is pointing in the opposite direction of previous vector. The second test is to find out whether the vector (X or Y) of the plane your testing is perpendicular to the previous vector. In both cases, an angle test between the two vectors will be able to tell you what you need to know, but you will likely NEVER get exactly 180 for an opposite test or 90 for a perpendicular test. That means that you have to choose a range with which to determine that a given vector is opposite or perpendicular.
You should start testing the X vector to see if anything is wrong. If you find that the X vector is fine, then just move on because Rhino will only allow you to create right handed planes, and the Z vector (the tangent) will always be the same.
I don't believe that there's a native function within the old dotNET SDK for calculating angles, so use the example at the link below. It basically takes the arcCosine of the Dot Product of the two vectors your testing to return the angle in Radians. I'm not sure if this function is included in RhinoCommon or not....
http://wiki.mcneel.com/developer/sdksamples/anglebetweenvectors…
ed when membrane cones are invited to the party (then mesh (via Starling is the best way) the brep and send data to Kangaroo : the easiest thing to do). But patch doesn't trim the inner Loops and ... well initially I thought to find this in SDK and do the job:
Well... I confess that I can't get the gist of the Brep.Trim (as explained in SDK).
Thus go to plan B: having already the closed breps (the "cones") as cutters ... attempt a Boolean difference
but this does that (this looks to me a bit paranoid, but some reason must exist):
What I want is this:
the code that mess things is (open the script inside definition attached):
BTW: where in SDK is that DeBrep thing?
BTW: Delaunay GH syntax is still cryptic to me (but this is not an issue anymore)
I would greatly appreciate any help on that final step (to greatness).
The full working definition soon (v5: with 90% of components replaced by C# stuff).
best, Peter
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