her people) a tremendous amount of time creating them by hand. Dog Treat was far from perfect, however it was good enough to use almost daily.
Three years is a long time. Since 2016 my Gh knowledge has expanded and I’ve seen how dodgy some of the scripting is. With this in mind I started work on a new build. Many things have been tweaked and some things have been rebuilt from the ground up.
Everything has been designed to be leaner and be a general solution to the problem of creating dog bone corners on geometry for quick, efficient and safe CNC fabrication.
Some of these things are:
Adding prompts about user geometry to make them aware about open curves, varying curve heights and if their geometry had been altered (mostly removing unnecessary points on curves).
Smooth Transfers. If you’re in a rush and need to speed through cutting, smooth transfers mean that a lead in geometry is now created alongside the actual dog bone arc. This means the router bit doesn’t have to come to a minute stop at every corner. This is turned on by default.
Acute Angle Condition If the angle between the two curves adjacent to a dog bone point is acute, previously the dog bone corner was useless. This was because the distance between the end points of the dog bone arc were less than the diameter of the router bit. There are many ways this condition could be addressed. I chose to circumscribe a larger arc based on the original angle between the adjacent curves. While it removes more material from the corner, it minimises tool wear and any potential for material to burn.
Single Curve A single curve can now be input into Dog Treat. It will be output with both internal and external treatments.
I’ll continue to update Dog Treat as the need arises, it’s become somewhat of a hobby now. Maybe one day it will become part of a Plug-in… once I learn to code it though!
Happy Treating!
Hi Everyone,
Here's a tool I've been working on for the past 4 months or so in my free time. It's a dog bone corner generator, however it's a little different to some of the existing ones. It's designed to be used for large amounts of geometry and as such, it avoids using any curve boolean operations that are computationally taxing. You don't have to split your curves up into internal and external lots either, it works it all out so you can be lazy. I've also incorporated Lunch Box's Object Bake Component for a one click operation that bakes geometry back out to Internal and External profile layers.
Let me know how it goes, will update where necessary.
Best,
Darcy
Change Log
06/11/19 - Version 2.0 SECOND DINNER - Rebuild
29/09/17 - Version 1.3 - Now with smooth corners option, True for smooth default/False for original
18/05/17 - Version 1.2 - Now includes variable angle domain input (defaults at 90°) for angled corners
13/11/16 - slight change to enable acceptance of very large interior curves
…
Added by Darcy Zelenko at 8:44pm on November 9, 2016
r "virtual partitions" as follows:
What I mean "air walls" here, is derived from the description of the E+ documentation with the header of "Air wall, Open air connection between zones". (Page 17, http://apps1.eere.energy.gov/buildings/energyplus/pdfs/tips_and_tricks_using_energyplus.pdf)
As I understand, the term "air wall" used in E+ here refers to a description of something like "boundary condition" between adjacent interzone heat transfer surfaces, but not a kind of "construction or material" (like air space resistance or air gaps within a wall/double glazing window).
The main purpose of introducing the "air wall", is to simulate or approximate the airflow/convection/natural ventilation effect between multiple thermal zones which are connected by a large opening.
In my previous tests, using HBzones and GB, I managed to create the gbXML file which can be successfully imported to DB (without assigning any constructions within HB). And the adjacency condition can be recognized automatically by DB, even when I did not use the "Solve adjacencies" component in HB - shared surfaces between multiple thermal zones are recognized automatically by BD as "internal - partition"(which are standard partitions, but not virtual partitions).
In order to create/approximate "virtual partition", I need to manually draw a "hole" in the standard partition surface (fig.1&2). Again, the reason why we want to use "virtual partitions"(or "air wall") is that it allows airflow between multiple thermal zones which are connected by large openings and we could get different temperature of the each subdivided thermal zone which compose a large thermal zone.
My question is, if there is a possible way to simulate/approximate this kind of "virtual partitions"(or "air wall") in HBzones or in GB? If so, I would like to test if DB recognizes it or not. Actually, we expect that there is no need to involve any manual operations (like drawing a "hole" in the standard partition surface) in DB, due to an automatic optimization loop.
Thank you!
Best,
Ding
fig.1
fig.2
…
unity in Ukraine, which is orientated to contemporary architecture.
The results of CANactions will be published in ACC magazine (link), on the web-sites of “Architectural club” (link), AB "ZOTOV&CO" (www.zotov.com.ua),
Theme
Theme of CANactions 2009 is emergent design techniques.
This theme could include following architectural branches as Digital design, sustainable architecture and other sectors, which by the participants’ opinions, could be EMERGENT.???
Any architectural projects made earlier of specially for the CANactions’09 are allowed for submission.
Presentation
All the projects will be submitted in two phases:
Phase 1 – selection of 10-15 participants of CANactions.
Project has to be sent by e-mail to: (__) in PDF (not less then 300 dpi, not more then 10 Mb).
Phase 2 –the CANactions participants prepare 15-20 min presentation of their projects (screen projector, microphone) and materials for the exhibition in House of Architect, Kyiv. The project has to be presented by author. -> exhibition is the first architecture biennale
Presentation requirements: file should be composed in PDF format on A0 sheets, placed horizontal (not more then 1 sheets). This file should contain sufficient amount of the presentation graphic material, including text explanation up to 300 words.
The raster images should have printing definition not less then 300 dpi. It’s recommended to avoid solid black fillings, because the projects will be printed on ink-jet printer.
The presentation requirements could be changed after phase 1 results.
The presentation materials should be made in Ukrainian (or Russian) and English. Verbal part can be presented in any language.
Tarek Naga, Naga Studio, Los Angeles / USA (I can contact him - he will do it for free)
Awards
DIA (Dessau Institute of Architecture), Germany gives a prize: certificate for the education for 1 (2) semesters of Master-program in DIA for students and young architects (up to 30 years) from Ukraine. The decision about the prize winners will be made by selection board.
Guests presentations
- Daniel da Rocha DIA /Germany/ (flights, accommodation?). Theme: (scripting???)
- Aleksandr Kalachev DIA /Riussian Federation/, Tudor Cosmatu DIA /Romania/, Irina Bogdan DIA /Romania/ - "Parametrically Defined Urban Patterns".
- Grygorii Zotov DIA /Ukraine/ - “The Multicultural Columbarium”.
- Armen Menendian /USA/ - "Blending Parametric Methods With Traditional Design:
"The Danish Pavilion at Shanghai EXPO 2010".
Exhibitions
1. Projects of 10 (15) CANactions participants
2. other projects: Zotov+Co
Bollinger+Grohmann - structural eng.
the very many
C-Space Pavillon / alvin huang
ala _ amanda levete studio
anOtherArchitect
student work, Charles Walker, AA Unit Pavillon
Event schedule
Phase 1: 01.07.2009 – start of the CANactions 2009 and beginning of projects submission.
16.08.2009 - dead-line of the project submission of phase 1.
Phase 2: 17.08.2009 – announcement of the CANactions 2009 participants.
30.08.2009 – dead-line of submission of the CANactions 2009 exhibition materials.
14-26.09.2009 – exhibition of the CANactions 2009 projects in House of Architect, Kyiv.
25-26.09.2009 – CANactions 2009.
26.09.2009 - finnissage / announcement of competition winners for DIA study
Contacts: canactions2009@gmail.com…
Added by Grisha Zotov at 6:32am on August 10, 2009
y case. Here's the thing. There is this subject at my university where we are assigned a famous building and we need to recreate it in Rhino. We're given bonus points if we manage to code some interesting part of it in Grasshopper. So far so good, I'm doing pretty well with Rhino and by far I am happy with the results I've achieved with modelling the given building. Harbin Opera House by MAD is the building I'm trying to model. There is one particular surface:I've built this surface in Rhino and now I'm trying to map pyramids on it. Not only have the pyramids to be different in height, but their height has to be dependent on the curvature of the surface. I'm getting some results but it seems to be exactly the opposite of what I need. I want to have higher/spikier pyramids where my curvature analysis shows red/blue and lower/slopier pyramids where the analysis shows green colour.At the moment I'm not really sure how the code I have works, but it seems that the height of the pyramids is dependent on a distance from a point in space to the projection of the cap-point of a pyramid.Here're my Rhino and Grasshopper files:surface1.3dm
surface1.ghI'd be grateful if someone of you guys could handle my problem. I've got one more issue with this surface, but once I get a solution to the first 1 will let know what the second one is.Thanks in advance and keep well!…
are invisible in the picture.
So what you see it's a common band that has lost all those characteristics of the original in order to protect the process.
We also did an "invisible setting" prototype which has built in Flexibility.
If you are in the jewelry industry you would know what I mean and it is close to a miracle.
It's a shame I can not share details and this is why I am planning my next major work on something 10 times more complex then this, at least.
It's will be for my own business and for the jewelry industry as well.
I hate to tease people and then not to be able to produce anything more than an image.
But I thought it would be better than nothing, at least for jeweler designers, so they can see that there are more and more users and that complexity it is not something to shy away from, and it's worth the time spent because the returns on production are far larger than for special orders and this is why GH is useful.
We can design a piece of jewelry usually in less then 1 hour, hence GH is not really worth the time.
But for production with so many variables (Finger sizes controlling most of the outcome together with stone sizes etc.) then GH it's a MUST!
I really appreciate everyone's comments and suspicions and I understand why.
99% of the people out there do not really understand the complexity of jewelry at the industrial level. It' s not just form but the post-production that's the killer.
This industry it's still an hybrid of technology and art with, and due to the lack of the old school pros, unfortunately, we face very lousy and unpredictable execution in the post production (after the casting process). This leaves you with a design process and intention that requires a lot of control over every possible variant of the object.
One wrong design aspect it's multiplied thousands of times at the benches (for every single piece) = bad profits!
It sound more serious that it is but very few companies are willing to do so (delivering good product vs low quality and this also happens because the consumer is not longer aware of the difference. So, who does keep quality, it's only because of integrity, third party QA or just pride).
This is way GH is invaluable. This is why that Def looks like out of proportion for that (Visual) simple band.
It is because there are dozens and dozens of variable effecting everything else. In fact it is not even complete as it is in order to cover everything but the most critical ones.
Sorry for the long replays. I am an instructor and a professional jeweler by trade since I was very young and I love to teach, so I overflow with explanations... and Components :)).
Next time it will be "in the open" as they say...…
uments:
1. You are targeting CATIA don't you? (not exactly tomorrow but ... soon) and/or SolidWorks (hello C# haven't we met before?).
2. You MUST deal with nested block instances instead of what you are trying to do right now (I'm talking about the real MERO things not abstract Lines and points). This is not doable with GH components I'm afraid (but it's rather easy with code).
3. You MUST deal with RDBMS in order to keep track with what's going on in your company per project per case per designer (who sells that bolt? what's his cat name? is he a reliable supplier? what I'm doing in life? ... that sort of "queries"). At this point: CATIA is 1% CAD things and 99% PLM stuff (Product Life cycle Management). We do want that since it's 21st century running don't we?.
I hear you: but these are 3 arguments ... indeed but ... hey who's counting? he he.
Method:
A. This def attached has a very simple C# that gets mesh Pts and makes a nice U/V style collection of points (DataTree in plain English).
B. Then we go to that umbrella sticks thingy: we can calculate anything (already the thing does "some") plus your collections of divided points (with the right way, he he) VS a given node: you said (Skype) that you want to calculate angles with these (from 2 to 6) in mind: obvious since you are doing real-life MERO things.
C. Then we could calculate the appropriate Planes for PlaneToPlane transformations: get a nested instance definition (the red things that you've showed to me yesterday) placed at 0,0,0 (Plane.WorldXY) and put in in every Plane collection related with every node (clash defection is an obvious must).
Case resolved, closed: what about that Vodka?
More in Skype
…
merely automates finding clear intersections between pairs of objects and then splits the objects along those intersection *curves*, deletes the trims, then joins the remains, and cycles on. But within the confusing Rhino Settings tolerance value, wherever surfaces actually just sort of come closely together, there *is* *no* clear intersection curve. So it bugs out and stops working EVERY time you try more than a dozen or two spheres.
Some software can do this by switching to volumetric pixels (voxels). $9K-$30K Geomagic Freeform is an example of this. It also fails sometimes, often due to memory issues, as you can imagine since it needs to fill all inner space of each sphere definition with 3D pixels.
Materialize Magics for $16K can often handle such Booleans well. It will take a seeming lifetime to figure out such often pirate software kludges though.
One thing you can try though is to simply drape a mesh or NURBS plane onto the top of your spheres.
There's a well known *reason* your Booleans are failing. Nobody here has yet even hinted at it:
The main reason is that Rhino/Grasshopper developers don't care about the human element. The math exists to make this work very fast, every time. It just has to join things *right*, incorporating human knowledge of kissing surfaces, instead of acting stupidly, like some pocket calculator. But that would involve hacks that make 99% of complex Booleans work instead of 10%, and we can't have that since it will be SLOWER for the other 1% that just happen to have no nearly kissing or really kissing surfaces.
You could also use the new Cocoon plugin to do a surface *around* your structures, with a given radius of extension beyond the spheres, then offset that surface back the same radius. That is 100% robust, but won't offer quite as sharp of intersections, more rounded, like most everybody wants anyway.
You can *test* Boolean failures, by running a Grasshopper intersection command, to see the intersection curves, and zoom in to see how badly many of them are, all knotted, or twisted, or even with gaps, often with gaps.
It's a math problem nobody at McNeel wants to solve, sorry.
Just write a check for $25K and spend six months taking notes, like I did, and you can merge your simple spheres finally.…
Added by Nik Willmore at 6:33pm on October 20, 2015
edit 29/04/14 - Here is a new collection of more than 80 example files, organized by category:
KangarooExamples.zip
This zip is the most up to date collection of examples at the moment, and collects t
ers and researchers, programmers and artists, professionals and academics who come together for 4 days of intense collaboration, development, and design.
The sg2012 Workshop will be organised around Clusters. Clusters are hubs of expertise. They comprise of people, knowledge, tools, materials and machines. The Clusters provide a focus for workshop participants working together within a common framework.
Clusters provide a forum for the exchange of ideas, processes and techniques and act as a catalyst for design resolution. The Workshop is made up of ten Clusters that respond in diverse ways to the sg2012 Challenge Material Intensities.
Applicants to the sg2012 Workshop will select their preferred cluster from the following:
Beyond Mechanics
Micro Synergetics
Composite Territories
Ceramics 2.0
Material Conflicts
Transgranular Perspiration
Reactive Acoustic Environments
Form Follows Flow
Bioresponsive Building Envelopes
Gridshell Digital Tectonics
More information about the Workshop and Clusters can be found here:
http://smartgeometry.org/index.php?option=com_content&view=article&id=116&Itemid=131
The application process will close on January 15th, 2012.
Full Fee $1500
Reduced Fee $750
Scholarship Fee $350
Fees include attendance to both the workshop and conference from March 19th-24th.
Reduced Fee and Scholarships are available only for Academics, Students and Young Practitioners, and are awarded during a competitive peer review process.
sg2012 takes place from 19-24 March 2012 at EMPAC (http://empac.rpi.edu/) and is hosted by Rensselaer Polytechnic Institute in Troy, upstate New York USA. The Workshop and Conference will be a gathering of the global community of innovators and pioneers in the fields of architecture, design and engineering.
The event will be in two parts: a four day Workshop 19-22 March, and a public conference beginning with Talkshop 23 March, followed by a Symposium 24 March. The event follows the format of the highly successful preceding events sg2010 Barcelona and sg2011 Copenhagen.
sg2012 Challenge Material Intensities
Simulation, Energy, Environment
Imagine the design space of architecture was no longer at the scale of rooms, walls and atria, but that of cells, grains and vapour droplets. Rather than the flow of people, services, or construction schedules, the focus becomes the flow of light, vapour, molecular vibrations and growth schedules: design from the inside out.
The sg2012 challenge, Material Intensities, is intended to dissolve our notion of the built environment as inert constructions enclosing physically sealed spaces. Spaces and boundaries are abundant with vibration, fluctuating intensities, shifting gradients and flows. The materials that define them are in a continual state of becoming: a dance of energy and information. Material potential is defined by multiple properties: acoustical, chemical, electrical, environmental, magnetic, manufacturing, mechanical, optical, radiological, sensorial, and thermal. The challenge for sg2012 Material Intensities is to consider material economy when creating environments, micro-climates and contexts congenial for social interaction, activities and organisation. This challenge calls for design innovation and dialogue between disciplines and responsibilities. sg2010 Working Prototypes strove to emancipate digital design from the hard drive by moving from the virtual to the actual in wrestling with the tangible world of physical fabrication. sg2011 Building the Invisible focused on informing digital design with real world data. sg2012 Material Intensities strives to energise our digital prototypes and infuse them with material behaviour. They have the potential to become rich simulations informed by the material dynamics, chemical composition, energy flows, force fields and environmental conditions that feed back into the design process.
More information can be found at http://www.smartgeometry.org
Follow us on Twitter at http://twitter.com/smartgeometry…
Added by Shane Burger at 12:29pm on December 13, 2011