After installing, just right-click on any file and select ‘Create Checksum File…’, then open the .md5 file that was created.

HashCheck Shell Extension

What is Hash or MD5 checking?
A cryptographic hash function is a deterministic procedure that takes an arbitrary block of data and returns a fixed-size bit string, the (cryptographic) hash value, such that an accidental or intentional change to the data will change the hash value. The data to be encoded is often called the “message”, and the hash value is sometimes called the message digest or simply digest.

Basically, when you download something important off the Net, it lets you know that the file has not been corrupted or modified in some nasty way…

There was time spent changing a design that didn’t need to happen, all because of an unwillingness to accept that something might be different than what we know.

And in BIM, everything is. You have to be willing to get outside the box – do things differently – ask questions – be humble, but be motivated…to learn, to change your ways. It doesn’t matter if you’re a newly graduated intern or a 40 year engineer. The day you stop learning is the day you need to retire, so don’t be afraid to challenge yourself.

From The MEP CAD Engineer: What drives a successful BIM project…?

I received a comment that referred me to this AUGI Forum page.

And here are some interesting comments from that page:


irwin
Revit Founder

Charles River Software was incorporated by Leonid 10/31/97.

I joined on 2/2/98.

First round of venture capital was in 1998.

First lines of code were written in 1998.

First office (not counting Leonid’s living room) was in Wellesley, MA, upstairs from Dominoes Pizza. It used to smell quite toasty in the afternoons.

Regarding Reflex, we did do an evaluation to determine if we should base Revit on Reflex and the conclusion was no. None of Revit was based on Reflex (though they both were intended to solve the problem of making a practical 3D architectural modeler). By the way, contrary to what someone said earlier in this thread, Reflex does not have a parametric change engine (one of the reasons we rejected it as a starting point for Revit).

This is from an AUGI archive – its worth a read.  I have bolded some of the points I thought were cool:

PeterJ
2004-11-17, 09:27 AM
Ralph Grabowski, writing in Upfront Ezine stated “The CAD social event of the month was the Revit launch, which took place April 5, 2000 in Cambridge MA USA.” and then went on to describe the event as follows….Revit Launch: Four o’clock and time for the Revit event at the Aurthur M Sackler lecture hall. There are 125 invited attendees, but very few media. From what I and others could see, there is no one from CADalyst, Cadence, or Penton Publishing. Revit ceo Dale Lemont hosts the two-hour event, calling this “an important moment in the history of CAD. The parametric architectural software will be sold by monthly subscription. In stark contrast to SolidWorks, Revit will have no resellers — everything by the Web. Nobody says it for sure, but I finally decide that Revit is short for “revise it.”

Update (April 2002): Almost exactly two years after the launch, Revit sold itself to Autodesk for US$133 million. Although the company had managed to create a huge “mindshare” acceptance, Revit sales were described by Autodesk CEO Carol Bartz as “small pilot user base,” what she would expect from a “start-up.”

Dale refreshingly admits much is missing from Revit, and that the following functions will be added over the next 24 months: massing studies, stacking, canted walls, sloping structures, turn on more AccuRender functions, multi-user enhancements, estimation at all stages, product catalogs, schedules, architectural detailing, Web collaboration, ASP capabilities, landscape, HVAC, plumbing, and electrical.

The product will be available in early May; delivery has slipped by two weeks. A new release is promised every 90 days in first year — “Tough on us book authors,” I note wryly to the Revit employee sitting near me.

http://www.upfrontezine.com/travel/founders.jpg
In the background, ceo David Lemont. In the foreground, founder Leonid Raiz (at left) and Irwin Jungreis.

Revit Dinner: The product launch is followed by dinner in the courtyard of the Fogg Art Museum, located across the street. The museum features a small but broad collection of art: religious, African, modern, and classical. My wife would have enjoyed viewing the paintings by van Gough, Monet, and Renoir.

Each of our nametags have a color. I find out that — ironically enough — green indicates you had ordered beef, while red indicates vegetarian; my color was yellow, for salmon.

On one side of me sits a representative from Atlas Ventures, who asked me what I thought of Revit and the launch. How do you answer a man who has sunk millions of dollars into this?

On the other side of sits Brad Holtz (of ‘CAD Rating Guide’ fame) and next to him, Geoffrey Langdon (of architectural CAD shootout fame). The thought underlying this whole event is “SolidWorks or Numera?” Would Revit rocket into orbit, or burn out at the launch pad? We reminisce over CAD ventures that have burned through their money over the years. Brad declared himself the winner in remembering the worst CAD launch ever: TriumphCAD spent all its money on ads — no product ever shipped.
http://www.upfrontezine.com/travel/brad.jpg

Brad Holtz and Geoffrey Langdon.

We muse over Revit’s business model. “How long does Revit have before investors would want their money back?” The problem with a monthly subscription model is that money trickles in more slowly. Take 60 Revit employees earning an average of US$100,000/yr each. Assume Revit nets $100/mo per subscription. That means they need 5,000 subscriptions just to break even. “The question is,” summarizes Brad, “How long will it take to ramp up to 5,000 subscriptions?” As I write this, I also wonder about “subscription churn” where gains from new subscribers are offset by losses from unsubscribers.

Just as we complete our analysis, an earnest young Revit employee comes by our table to introduce himself. “I’m in charge of developing the business model in conjunction with Harvard Business School,” he explains. The three of us roar with laughter: “Funny you should mention that…”. We give him our analysis — at no charge.

http://www.upfrontezine.com/travel/dinner.jpg

Dinner in the Fogg Art Museum’s courtyard.

link to AUGI Forum thread here

Release 2011: The Families Guide was not updated for Revit 2011. Please use the 2010 edition of the Families Guide.

Autodesk – Autodesk Revit Architecture Services & Support – Families Guide

Do you get the feeling that perhaps, if Autodesk put it off long enough, they won’t have to update some of this documentation?

With the official Wiki now in operation, and a plethora of blogs, where will Autodesk draw the line with regards to Help documentation?