Can't be easier than that, huh??? I hope it was worth the wait!!!
A BIM Junkies Guide to Getting Over an Addiction to Lines..."Toward a Zen of BIM"
Monday, September 15, 2008
Filter This!!! Selectively Selecting in Revit.
Can't be easier than that, huh??? I hope it was worth the wait!!!
Monday, August 18, 2008
I Know The Blog's Lapsed
In the mean time, check out one (or all) of these mixes from j77 If that's your musical bag.
Friday, July 18, 2008
Revit Users and You (Sirs?)

Tom Weir (Brandow & Johnston's own) will present "Ain't it the Pits" -a how to build an elevator pit presentation; as well as a special review of a 100% Revit Project under construction (Shhh, it's a secret Hollywood studio). Then, we will be holding a "Coordination" panel discussion with all 3 current Revit disciplines: Structure, MEP & Architecture. Bring all of your questions and comments to add to the topics we will outline. The final list of industry participants is growing but as of now Tom and I will join Jonathan West from Mazzetti & Associates and David Wilmans & Nik Muir from Gensler; we will keep you posted on others as they are confirmed. This is shaping up to be a great session that will help us all move forward in a more collaborative AEC world. See you there
Jarrod Baumann and Joel Londenberg of Design West Engineering have also been added to the panel, so we are even more excited about this meeting.
Also in the list of attendees someone (Thanks Henry!!!) asked a question so I'll answer that here since it doesn't fit the theme of the RUG but is a common question:
Q: How to host cars on ramps? A: Use a floor!!!
Ramps don't allow that. You could get into elaborate faking but I'd just say use a floor. BTW: all of my "Parking Ramps" are floor objects anyways...We want to get the areas counted with all the other slabs, right?
Friday, July 11, 2008
Voting: Poll shows .026% turnout last week
Tuesday, July 08, 2008
MoreBiDirectionalistically
-
Chris said...Do you know what advantages this offers, compared to Autodesk's now-recommended FBX workflow? -Tuesday, July 08, 2008
I find it interesting (or #@*^!) that ADSK says that "interoperability" is a main concern and push for them (see any keynote speach from the recent past...AU, etc...) since it seems that other companies write code to get more interoperability out of ADSK products than they do themselves. Behemoths move so slow and ultimately go the way of the dinosaur if they don't learn to adapt and respond faster. But perhaps my view is a bit harsh since Npower is part of ADSK's ADN (advanced developer network). I comment because I love.
With that rant over (for now) here are a few more assets I found while bouncing around the Web... Autodesk has some FBX and other videos at: This Site!!! that are worth a look.
Oh and BTFW: I just nearly soiled my armour when I came across this tidbit: Click This if you dare!!! ADSK and who are going to become interoperable? Bentley?... Seems so... Has Robert Aish put something up ADSK's sleeve??? I can only hope. Perhaps ADSK stock is a good thing; it is up nearly a dollar per share today; Now if they'd only get their own products interoperable with each other...
Monday, July 07, 2008
BiDirectional isn't a dirty word!!! (except in my mind)
Sarcasm alert...Sarcasm alert...
I suggest that nobody else looks into nPower's bi-directional translation solution!!! Yes it's a link!!! I don't think anyone would benefit from real interoperability between Revit and 3DMAX; or any other software for that matter. I think softwares that Designers use should be rigid and inflexible, continuing to allow limited Design & creativity options, nor do I feel that they should allow for exponential growth of ideas...Uhh...Hmmm...Perhaps that's what the sarcasm alert was for...???
BiDirectional!!! Can it be??? Can we actually round trip objects to and from 3dMAX and Revit!!! I think we can!!! Tune in again soon to see some results...
In the mean time, click the image below for the video... I mean DON'T click the image below, you'll just be wasting your time with the possibilities...

Friday, July 04, 2008
Monday, June 23, 2008
DIMENSION OVERRIDES IN THE STORM
Below is the dialog that pops up when you click the Numerical Value of a dimension in Revit, since the release of 2009. Good so far... I like the new additions to just Prefix & Suffix... The whole Above & Below fields are quite useful.

What isn't altogether wonderful is the "Replace with Text" value. I say altogether because we can get this to be horribly incorrect, even though it's a good tool when used correctly. If objects report an odd dimension then just move the objects; please don't use fake dimensions and really only use the Text Override for text ONLY.
I know that you may be thinking I am off base here but remember the fact that we weren't able to fake a dimension meant we had to actually do our job correctly(er)... what was so wrong with showing the supposed number with V.I.F. after it, etc.... I know there are uses for replacing the actual # with text only but we can always find a way to subvert that system and get our documentation to be, well, just plain wrong; And don't our contracts say that the printed documents take precedence?!!! If so this new functionality is one to steer clear of, lest we add a new item to the list of possible litigation we are exposed to.
If they would have asked me I would just have had this value be visually toggled or it would simply not allow any numbers in it... Why? Look at the 2 dimensions in the next image and tell me what the top dimension says... (Note: The bottom dimension is the true dimensional value)


The fact that while one can't use the "foot" and "inch" symbols ( ' and ") together; one could use the accent grave ( ` ) symbol, etc; then Revit sees the whole string as text and bottom line DOES for all intents and purposes allow the reverse of what the previous image says.
Remember, If you want to keep your job then just move the objects if a dimension is reporting an odd value; please don't use fake dimensions and only use the Text Override for "Text".
The following is another good issue to think about if you use "broken" or "split" views: CLICK ME; I'M FROM AUGI.
Monday, June 16, 2008
Scope Boxes Redux
1) DRAFTING>SCOPE BOX (Yes any way you like... I use SB as a keyboard shortcut...)

The next image is the Properties of the Left Wing SB.



3) This next step (which I do not illustrate with images) is to duplicate all necessary views (in this case I used two Plan Views; but Section and Elevations can leverage SB's too). I created two duplicates of both the Level 01 and Level 02 Plans and named them Left & Right, as needed. (Yes we will have a lot of views)!!!
4) Then, using these Views' properties dialog you would associate the necessary views to their corresponding (or applicable) Scope Box.


-Any more questions? Leave a comment and I'll respond...
Friday, May 30, 2008
Jetway Explained


Plan View related parameters illustrated:

Elevation related parameters illustrated:

How's that?
Wednesday, May 28, 2008
Old to New: Upgrading oddities 1 (of more??? )

So what am I talking about? OK, I will tell you:
Yesterday I got a message from a colleague who wants to be referred to herein as Sasquatch (Actually he corrected me, saying: "Quasimodo would have described me a little better! Ha Ha") so, thanks Quasimodo...(AKA John C Raiten).
So anyways, John asked if I had any ideas as to how he could upgrade a 140MB project file to Revit 2009, since I recently had a problem file that needed ADSK's help in upgrading. I got in touch with him this morning to suggest he try a parsing of the file, since there seems to be no other options beyond this or ADSK Support... Well I found that he finally had success (Yaay!!!) and here is the synopsis:
"If at first you don't..."
1) Detached and 'saveas-ed' (lol) a new Central file, so as to not destroy the original file.
...tried to upgrade the entire project file with no luck...
2) Purged Unused, Audited, removed errors. (always a good set of ideas).
...tried to upgrade the entire project file with no luck...
3) Removed all links.
...tried to upgrade the entire project file with no luck...
Now here it gets fun...remember I said parse? well Sasquatch tried that after the obvious ways it "SHOULD" have worked all failed...
4) Grouped logically related bits of geometry (did I mention this project is approximately 5,000,000 sf?) why do I add that? Well, when I say bits I mean a Shit-load: He then saved the groups out as Links.
(Hmmm, perhaps you are beginning to see now?) ...wait for it...
5) He repeated this a handful of times; until only Levels, Grids and Annotations, Views, Sheets realistically everything shy of the actual building, existed in the original file.
...tried to upgrade the now building-less project file with luck... (Yes I said WITH luck, now we are getting somewhere). This point of time is also known as the dénouement...
6) Upgraded each of the linked group files, one-by-one.
...I can sense the end...
7) Linked them all in to the new 2009 main file, Bound them (oooh kinky) and ungrouped them and...
It Fucking worked!!!
-Fade-to-Black-
Monday, May 19, 2008
Smart Geometry Dumb Geometry

I see this (Smart Geometry type of thing) being widespread (on the horizon) and in Revit... do you AutoDesk? If not then I will include herein excerpts from an interesting article (and a link to the original); so perhaps we can get some groundswell for these capabilities to be built into Revit.
-My editorialization is in maroon.
"Robert Aish leaves Bentley" Yes, it's a link.
by Lars Hesselgren - 01 November 2007
"...Most people's reaction to the news that Robert Aish has resigned from Bentley and
is joining Autodesk is "Well what happens to GC now?". As you may imagine this was indeed the reaction of myself and the members of the SmartGeometry Group... (I say what happens to Revit now!!!???)
...We have to acknowledge the enormous role Robert played in creating Generative Components.
It was very much ‘his baby’...Robert Aish from YRM and Intergraph Master Architect days had joined Bentleys and was testing his first iteration of GC, so he joined the group. Our first outing with an incredibly rough Alpha was in Cambridge (2003); Robert did a new build every day...
...And of course at the end of the day Autodesk’s move underlines the acceptance into the marketplace of tools designed for the new design age where computers are used as active design participants. It is a fundamentally different concept from BIM which is a wonderful data storage method, but which leaves design out of the equation..." Yeah, Design is back into our tool box and perhaps one day it'll really be available and flexible in Revit too. -Or will that idea just be killed off?
Now, I know that there are methods for creating "approximations" or "visualizations" of complex designs, based on relatiotional formulas (I refer you to Phil Read's AU class that he gives each year) but those massing studies are a bit limited and don't generate building components, that are adequately quantifiable or "real", etc. they mainly look like objects... We need real objects to be controlled in any manner we dream.
I have one humble request: ADSK please get this type of geometry creation into Revit ASAP, I suggest you ask Mr. Aish; I'd bet he can show you how...he is on payroll, no???!!! ...or is this already happening (insert sly smile here) ...Hmmm...
...That ends this transmission...
Saturday, May 10, 2008
Tags Tagging The "Right" Thing

Since there was no value input for Type Mark in the object; and since we want to see the Mark (AKA: Number) we need to change the label to look at the parameter "Mark": (popular guy)

Now, when the Mark value is input in the object(s) Properties' (similar to the next image)...

the panels in question will go from this:

To this:

Thursday, April 24, 2008
Hail to the Chief(s): Onward and Upward for LA's Revit User Group
I will be Joining Tom Wier of Brandow & Johnston, Inc. in the operations of this, the greatest Revit User Group in the world.... OK here in LA at least!!!
I know this will be a great opportunity for me personally as well as professionally and wish to thank everyone who has helped me obtain such a level of total world domination...uhhh...I mean... to a place where I can help inspire and be inspired from users throughout Los Angeles and the (Revit) world at-large (yes bloggers, you too!!! Thank you all).
Since I first saw Revit I realized it's power and BIM's potential as being the way that we could bring Architecture to a higher level of achievement and I will strive to share this vision to as diverse an audience as is possible. Who knows, perhaps we'll get some new Reviteurs and help inspire the broader field of Architecture into unimagined accomplishments!!! I can dream, but you should know that I will also act on these dreams!!!
I am looking forward to bringing the LA (and beyond) Revit community to an even better place than we now enjoy and I invite you all to be a part of that.
One of my colleagues sent this to me so I felt it appropriate to pass it along...(really, none of this is going to my head)... I have always been confident in myself... Ooooh, awkward again!!! LOL. -J

Four Sundays in May
The occasion? Well, I'm glad you asked: it's for Family Days at LACMA... And guess who's teaching again???
I will be leading a painting on canvas adventure (canvas paper, that is), in a great setting with easels and sunshine...
If you've never been, well Nike says just do it!!! Everyone under 18 years old gets a free Museum membership. Yes, a real membership!!! Plus everyone is welcome to join in all the creativity -and what could be better than collaborating on Art with your friends and family? Not too much if you ask me!!!
There will be several stations setup with all you'll need to get your inner (or outer) Artist going, in a multitude of media; so kids (OK everyone) bring your family and friends and have some creative fun.
Picasso, Matisse, Degas—Oh My!
May 4, 11, 18, 25, 2008
Visit the newly reinstalled modern art galleries! Works by leading modern artists Pablo Picasso, Henri Matisse, and Edgar Degas will inspire you to make your own art with Larry Ashton, June Edmonds, Mahyar Nili, Quan Yen Tran and Jay Zallan.
View works from the museum's permanent collection in tours led by LACMA's high school interns exploring the influences, design, materials, and techniques used by modern artists.
I will plan on seeing you there!!! (Yes YOU!!!)
Tuesday, April 08, 2008
Are Your Callouts Out Of Shape Or Do You Just Want Them To Be?
But First: Is the rectangular Callout really unusable in your project? I always try to use the original callouts, but if it is just not acceptable then go to step #1.

1) Create an actual Callout, that generates a Plan View (and If you like to work predictably and consistently, then set it's extents to a "Scope Box" via the properties, as shown below). Note: Yes, I created the Scope Box before I created the Callout, but you can do it after...

Below is the end result of step #1:

3) Create our Proxy Callout that References (an) Other View and choose that generated view from the drop-down. Refer to the next 2 images!!!

When creating the Proxy, Referential View make the rectangle nearly impossibly small (zoom, zoom, zoom!!!)

Progress so far:

(Yes you may want to place the Scope Box(es) on their own workset that is Not "On By Default In Every View" (See the dialogue box that pops up when creating a new WS for this check box)...
4) Draw Detail Lines (I used the Double Dash) that express the Callout Bubble that you actually want...(and isn't that the whole point for this? BTW: See that red question again)
4a) Group the lines for either more control (or less control), depending on your users and their proclivity to delete or move items, etc... Still, I like to group them. (ha ha, the Callout can't be part of the group...Remember that I mentioned manual management? Well that's another one to watch as the project progresses).

I know I editorialize a bit but we need to be self critical and really understand the ramifications of any workaround; this may be thought of as being analogous to questioning oneself before running a marathon with stiletto heals on... They may look good and make your legs look beautiful but are the benefits worth it? Sometimes this is yes, sometimes no... If we think this through each time then we will be in good shape whatever the choice...
Until The (Revit) Factory finally gives us the power to create irregularly shaped callout bubbles...If they ever do!!!
Friday, March 21, 2008
OK so sometimes we need to just pick flowers...
It's been an outrageously busy week so I am going to post a recount of a lesson in perspective that is both humorous and true.
Enjoy, -J
Chapter One: (Eeeewwwww)
A short while (and about 25 lbs ago) I was in the "run" leg of a Sprint Triathlon (1/2 mile swim, 20 mile bike, 3+ mile run) about 1 mile from the finish I heard someone from behind exclaim that he had to pass me because he couldn't let someone with a disturbing injury beat him... (I had played hockey a few days before and got hit with a puck in the back of my leg...I did have a huge bruise but there was no more pain; I must admit that the huge, multi-colored bruise looked nasty). Well, I managed to beat him (ha ha); but, as it turned out this was just a sign of things to come...
Chapter Two: (WTF)
After the race I was getting some re-hydration and bananas and was walking back to the race staging area to begin to pack up and leave when I again heard someone behind me exclaim their horror at the bruise. The person was saying that he was inspired that someone with such a bad looking injury actually competed and finished the course... I turned in the middle of answering to him that "...Oh, it was just a hockey bruise and nothing too serious..." yet as I turned and finally saw this guy (a really toned athlete) I saw that he had only 1 leg (he wore one of those racing prosthetics)... He did the same race as me with only one leg and he was impressed by me??? WTF/LOL!!!
Chapter Three: (Hmmmm)
After running thru a long list of thoughts that flooded me I finally had a nice talk with him about how funny it seemed to me that he is the one to me who is truly inspiring, running on one leg and that he thought my little (well OK big) bruise was inspiring to him was a great irony...we both had a little laugh and a realization about perspective...we both seemed to think our situations were merely our normal state...
Monday, March 03, 2008
More Fun With Views: Stacked Isometrics and More
GO.
1) Model your building (LOL)
2) Open Up a 3D View (you can have a lot of fun with Camera Views and these techniques as well!!!) I'll use this one:




5) Now View>Orient>Save View (or in my world SV...Are you getting the idea that using shortcuts are faster for repetitive tasks???!!! I think I just saved $100.00)


Here is a completed ISO Plan that will be stacked with the others... (Yes, I created one for every Level: 1, 2, 3, 4, 5, 6, 7...+ a Site view that I discarded in the end)

7) Shampoo, Rinse, Repeat...
Here is a sheet view with all 7 views stacked (Yes, you'll want to place the views in an order so as to not cover the wrong ones up...let's say lowest to highest...it all depends on your desires...remember they will snap to alignment if you move them in line with each other)
WAIT A MINUTE!!! Did I just stack them on a Rendering from Revit? And did I actually only select Medium Quality, then push the Render button and let Mental Ray work??? Oh yes I did!!! I also must admit I did open the exported .tif Rendering output in my photo editor, to place a background, due to the fact that when (in Revit 2009) you export a rendering as a .tif or .png it also saves out an Alpha channel (which even accounts for glass, etc...) I say F' Yeah to that!!!

Thursday, February 28, 2008
Computer Security & 2009 Rendering "Too Much Perfect"
See this ASTALAVISTA.com Article. (or the Times Online Source Article) for a glimpse of Microsoft's ongoing lax security. Sorry Bill, I love you but something needs to be done. ' Glad I don't use HotMail!!!
BTW: Rendering in Revit 2009 is "too much perfect"... Thanks ADSK for Pimping My Revit!!! Images soon...
Friday, February 15, 2008
Revit Architecture 2009 New Features Workshop
I will get into more of the items in depth, but I thought you'd like to see the images above ASAP!!!
Soon the Revit Architecture web site will be updated with Revit Architecture 2009 info...HERE, I think.
Thursday, February 14, 2008
Do you want to save Thousands of dollars this year? Well just follow me...
First of all I did not come up with this but I'll take credit (no pun initially intended) if you want to send me a check!!! OK here we go:
Create a new drafting view and place some text in it. Maybe the text says:
IF YOU WANT TO SAVE THE PROJECT THOUSANDS OF DOLLARS (NO SHIT) PER YEAR THEN DO EACH DAY'S LAST SAVE TO CENTRAL FROM THIS VIEW.
-Perhaps you'll write your own blurb!!!
Now this next step is the most important and it’s getting 'buy-in' from the whole team: HAVE THEM ACTUALLY FOLLOW THE INSTRUCTION OF SAVING TO CENTRAL FROM THAT VIEW!!! Remember to close all hidden windows as well!!!
You don't know how to get buy-in? Here's a trick I like; just understand that you may get laughed at when you say that saving 15 seconds at opening can save $1,000 but let them laugh, you'll have the last and best laugh in about 1 minute!!!
1) Have a meeting with the Revit team and make sure your bosses are present. The more bosses the better!
2) Tell them that you have a way to save thousands of dollars (and use my name, if you like!!!)
3) Do this math on a large white-board or paper if you can, if not it's ok:
Revit projects average between 15 seconds and 1 1/2 minutes to generate the on-screen geometry during opening a file ...So let's use an average of 1 minute and let's say there are 5 people on the team:
(1x5=5 minutes per open) x 2 times a day [morning & after lunch] = 10 minutes a day. Hmmm I see where this is going...but wait it gets better!!!
10x5 = 50 minutes a week ...it's getting more clear and approaching impressive...
50 x 50 weeks = 2,500 minutes or 41.667 Hours a year (yes I said HOURS!!!) Now are you impressed? Wait!!! There’s one more thing... The big bosses always like this and they usually get the team members to buy in after hearing this:
41.667 x Billable Rate (maybe $100, or more an hour) at 100 per hr. = $4,167.00 per large project saved a year by this dumb, yet brilliant workflow enhancement... Oh and the small projects usually average 15 seconds saved = $1,000.00 a year +/-... Not bad for low profit margin projects too!!! Saving all this money for doing what we have to do anyways!!! That's strangely amazing!!!
No one's laughing at this anymore, huh?
Wednesday, February 13, 2008
Shared Coordinates And... 1
From the AUGI posting: Click Me!!!
The "Factory says: This is one place where you have to follow the rules.
Revit's internal calculations do not like very large coordinate numbers. There are many number systems used in an app like Revit, some for calculating values, some for driving the display, etc. In some cases these systems differ in the precision of the numbers they can use.
When numeric values are small, these differences in precision are insignificant. When numbers get large, the differences while still small on a percentage basis become large enough to effect the results of display and operations. Thus, it is important to keep your Revit project near Revit's origin. (near means within 1 mile/1.6km) Revit's origin is near the center of the space made by the elevation symbols in the default template.
The Rules
* Always build your building near the starting point of the default template.
* Model it with Project North pointing directly up. (lay it out as you would have it appear on sheets)
* If you are using a dwg based site, Link your site file Center To Center.
* Move or rotate the SITE under your project until it is correctly positioned relative to the building. (do not move or rotate the project itself).
* Use the Acquire Coordinates tool and pick the site.
This will set your project's shared coordinated to those of the dwg's wcs. True North will be the dwg's Y axis. Now your building knows where the dwg 0,0 is, but it can still record its own information in well behaving small numbers. It knows and can orient to either True North, or Project North. Once the shared coordinates are set, subsequent imports can be made origin to origin using shared coordinates."
Another fine (merely excellent) asset is one of TG's posts Found Here!!!
This should be a good start...To be continued (with pictures most likely!!!)...
Monday, February 04, 2008
Update: Why can't designers model in Revit (yet)?
Thanks to all who participated and to those who provided feedback. Perhaps ADSK will let me do more sessions in the future!!!
Even though there were preconceived notions as to the benefit of this session the reality was that it was (and is) a forum for positive change and inspired a lot of both thought and action...Without much further ado: Here's that feedback... (yes, it's a bit of an ego trip, but honestly it illustrates what not only I have to offer our world of BIM but what all of you bring to bare; as I see the results here as speaking as a microcosm of the entirety of the Revit community, illustrating the need and usefulness of pushing the envelope (sometimes in a confrontational manner, in order to get people's open listening)... BTW: I especially love the comment "Brilliant"!!! I think it was a brilliant session too...
- Have you heard of AU Unplugged before arriving in Las Vegas?
Yes -14 (74%)
No- 5 (26%)
No Answer- 0
2. Did you vote for any session to be included in the AU Unplugged scheduled?
Yes –6 (32%)
No-13 (68%)
No Answer- 0
- Please rate the following on a scale from 1 to 10. (a-e)
a. Overall satisfaction with this session. 8.68
b. Format of this session. 8.89
c. Session leader’s knowledge of topic. 9.05
d. Sessions leader’s effort to engage participants 9.31
e. The benefit or value (information, contacts, etc.) 8.73
You gained from this session.
- Would you recommend this session or one similar format to others?
Yes –18 (95%)
No- 1 (5%)
No Answer- 0
Interactive, open, honest
Open, honest, healthy
Good discussion
Discussion and idea flow
Interactivity
Open exchange
Wide Spectrum of personalities/experience that attended
Good discussion
Free discussion and debate
Open discussion
The open discussion and knowledge of the attendees
Brilliant
Interactive rather than just listening
Open Discussion
Ideas
Open Dialog
6. What did you least like about this session?
Too short
Trivial topic
Off topic at times
The group was not a good match for the topic
Hw at times people pulled the conversation to the technical
Schedule conflict w/classes
Lighting
Not enough seats
Could talk express my thought without stepping as others
Comments:
Longer more session
I think the idea is great
More unplugged sessions
More of them
Schedule times to not conflict with added perhaps as breakfast and lunch sessions
Publicize and list schedule in augi daily sheet Just keep doing it
Tuesday, January 22, 2008
Spiral Ramps: a Helix of a Solution
Well before I begin (and if you were wondering where) that transcription for the AU Unplugged session that I did is, well, I am taking a bit longer than expected (as can be ascertained by it not being complete yet). I am working on it and have also asked ADSK again if they'd let me post the actual audio, so soon you can expect to have one or the other.
That said let's get to the helical Ramp. BTW one can extrapolate these procedures out to create Spiral Stairs as well...they both employ very similar processes!!!
A helix (I love that word) Is defined by Wolfram Math World (IMO the coolest math site) this way:
"...The helix is a space curve with parametric equations
(1) | |||
(2) | |||
(3) |
for , where
is the radius of the helix and
is a constant giving the vertical separation of the helix's loops.
The curvature of the helix is given by
(4) |
and the locus of the centers of curvature of a helix is another helix. The arc length is given by
(5) |
The torsion of a helix is given by
(6) |
so
(7) |
which is a constant. In fact, Lancret's theorem states that a necessary and sufficient condition for a curve to be a helix is that the ratio of curvature to torsion be constant.
The osculating plane of the helix is given by
(8) |
(9) |
The minimal surface of a helix is a helicoid. SEE ALSO: Generalized Helix, Helicoid, Seashell, Slinky, Spherical Helix, Spiral."
"The (circular) helicoid is the minimal surface having a (circular) helix as its boundary. It is the only ruled minimal surfaceplane (Catalan 1842, do Carmo 1986)." - Wolfram Math World
Go to the Modeling tools and choose Ramp (obviously). if you first create a couple of Ref Planes your going will be smoother.


The reason that I snapped to that Ref Plane so when I copy these up to other levels rotate them I will be able to use 180° to get the final helix. The length of your helical Ramp will probably require the most of your efforts to figure out; the rest of their creation is pretty quick.

OK, so now I am going to trust that you can copy then 'paste aligned>select levels by name...to get the new ramp up to the next level... And I am trusting that you can rotate the new copy and even align and possibly move it into place, then repeat until you get the desired end result...

Good Times!!!
-J

