Virtual Sharps

In the past, I’ve settled on using the phrase “TO V.S.” after a dimension which is to a virtual sharp.  I’ve seen this type of referencing used elsewhere.  Another set of initials I’ve seen used is TSC, which I guess stands for theoretical sharp corner.  I think this is likely older wording.  I used to like the shorter “VS” myself because it refers to what I would consider a more common term.  However, none of this matters too much since the standards say nothing about what is proper.  ASME Y14.5-2009 uses the term Point Location, but doesn’t specify any identification symbols or abbreviations for this concept.

SolidWorks graciously offers a multitude of marks to create an identification of a virtual sharp.  The main problem I run into with SolidWorks and this function is that I’m working in drawing scales or with radii sizes that frequently make such marker nearly invisible without a magnification glasses.  The other problem is that none of the marks are identified in any standards.  Heck, a third problem is that fact that the functionality is extremely hidden.  You have to know how to make a virtual sharp mark because there’s not button, or icon specifically for it.  It’s a short series of steps that would be nearly impossible to guess at.

Those steps being (within a drawing): 1) Select each of the two object lines that intersect in space. 2) Select the Point function.  How is anyone to know intuitively to select the Point function? Hmm.  Anyway, at least SolidWorks offers some method.  That’s more than can be said about the standards.

I guess I should ask what are others doing to identify dimensions that are to virtual sharps?

Here is an  updated article about Virtual Sharps.

Challenges in Transitioning from 2D to 3D

The CAD industry is so far along now that the discussion for many is no longer 2D CAD vs 3D CAD, but methodologies within the 3D CAD (such as direct modelling vs history modelling).  However, the adaption of 3D CAD applications such as SolidWorks is still on-going.  Many companies are still using 2D CAD applications.  Why does it take so long for many companies to make the transition when the benefits of 3D CAD seem to be so apparent?

I think Jeff Ray, CEO of DS SolidWorks Corp, properly identified this problem in an interview for the recent article CAD Tools: Breaking Barriers by Linda L. Bell (NASA Tech Briefs, Jan 2009 issue).  In part, he states that when a company considers making the transition to 3D CAD “the pain of change has to be less than the pain of the status quo.”  3D CAD still needs to be easy to access and use.  It also needs to be robust enough to be a design tool for those users that demand more from their applications.  On speaking about how SolidWorks has answered the need to make this transition easier, Ray states, “our last two releases have included a new user interface [where] the workflow predicts which tools the users will need and makes them readily available.”

Even still, there are many challenges to making the transition.  These involve learning a whole new way of working.  For example, when one draws a square, it doesn’t stay a square.  It can become a cube, rectagular rod or a plate.  It can also become a recess or square hole in another feature. 

Once one gets a grasp on these concepts, setting up the new 3D CAD software to work within the company’s documentation system can seem even more challenging.  This is one area that seems to missed (or at least not implemented fully) by many of the 3D CAD applications.  Having the ability to make drawings isn’t the end of it.  Communication with PLM’s and ERP’s is just as important in many companies. 

As my friend Chris MacCormack has recently pointed out, management of the 3D CAD files themselves must also be addressed.  With one or two users, this matter solves itself with simple use of folders.  However, as departments expand and companies grow, solutions for the raising difficulties change.  Of course, this must also be addressed with 2D CAD applications, but it is a much more complex matter with 3D CAD applications.

Most of us first address these issues with wide-eyed innocence. Upon going through this once, that becomes innocence lost.  To consider the transition from 2D CAD to 3D CAD, all of the above must be taken into consideration, and actually other issues too.  To improperly paraphrase Uncle Ben, with the great power enjoyed with the use of 3D CAD comes great responsibility in how it is used.

Now, it is understood that 3D CAD applications are not useful to all CAD users.  But if the field is mechanical engineering, it is very likely 3D CAD going to be worth the transition from 2D.

SWW09 is coming up fast!

I’ve been using SolidWorks since 1998.  The first SolidWorks World I attended was 2008, almost ten years later.  The second SolidWorks World I will attend is 2009.  I had hoped to leverage my trip to Florida to get some vacation after the convention.  However, this was not meant to be.  I wanted to plan for short vacation afterwards because I knew I’d have very little time during SolidWorks World 2009.  I didn’t know exactly what I’d be busy with; I just know I’d be busy. Well, as the event nears, I’m starting to get a handle on just what all I’ll be doing.  Since I’m going as a member of the Press this year, there are a couple extra events tacked on to my calendar.  Additionally, I’m now aware of a couple of events for attending bloggers.  I had originally hoped to present a break out session this year, but I’m now kinda glad I didn’t get picked up for that this time.  Maybe next year.

When planning for this event, I noticed that flights are cheap right now.  Since I’m paying for my own flight this year, this is good.   Who knows how long that is going to last.  It is great to be able to fly across country on a round trip for under $250.  Though I’m not able to vacation in Florida this year, that price makes other trips fairly attractive when the timing is right.

So, this trip isn’t for non-SolidWorks related fun.  No late nights out on the town.  No trip to Miami.  No Universal Studios – Orlando.  No lazy days on the beach.  No tours through the Everglades.  It’s all SolidWorks this, and SolidWorks that.  It’s enough to get a feeling creep up on you; the kind where you think you are working for SolidWorks when you really aren’t. 

SolidWorks World 2009 is something to look forward too.  No matter how much of a know-it-all someone might be on the topic of SolidWorks, there is always something new to learn.  (Even the presenters themselves learn during their presentations.)  I hope to meet as many people as I can this year.  I know I’ve been notorious for not carrying business cards.  I promise to have plenty for this event!  See you there!

SolidWorks Technical Summit – L.A., CA (Photos and such)

No matter how many words one uses (perhaps 1000?), there’s just something about photographs that really makes the point.  My previous article covered the SolidWorks Technical Summit – Los Angeles, CA in December 2008.   So, here’s a couple of photos from that event.

Full sessions

Phil Sluder’s session on 10 SolidWorks assembly fundamentals was nearly standing room only.  I’m not going to say there was a fight over one of the front row chairs, but I will say there was one of those “excuse me, I was sitting there” moments.

During our lunch, Richard Doyle presented 5 awesome prizes; the most awesome prize being a free admission to SolidWorks World 2009!  The lucky winner of this prize is the very happy Robert Wittwer of Power Probe, Inc in Brea, CA.

Robert Wittwer wins!

And don’t try to counterfeit the free admission form for yourself!  Richard Doyle handles the submission of these forms personally, and he knows who won throughout the year! 🙂

SolidWorks Technical Summit – Los Angeles review

This review is a little late in coming.  There’s been one thing after another since I got back from this one day event in mid-December.  But now, over Christmas vacation, I have some time to write.

The December Technical Summit had around 85 persons in attendance.  As usual, it started with coffee and pastries for breakfast.  After the opening statements from Richard Doyle, everyone headed off to one of two sessions.

I attended the session by Phil Sluder on Assemblies.  He  broke the topic down into 10 essentials, ranging from basics about file types (.sldprt, sldasm, and slddrw) to how to manipulate components within an assembly.  He then went into “Assembly Survival Tools” where we were shown some newer SolidWorks capabilities and more advanced functions.  Of particular note, he did a great job of explaining Virtual Components and how to use them.  This is something I’ve not dabbled into yet, so I found it very educational.  He also covered multi-mating, mousing controls, warnings and errors, issues with chain mating (mating parts in a chain instead of to base components or geometry), and may other points that are good for newer and intermediate users.  Sessions like this one are good, even for experienced users, as there is usually at least one thing we learn or get reminded about.

Richard Doyle has likely done more SolidWorks related sessions than any other human alive today.  Not only does he host the Technical Summits (with morning and noontime presentations), he usually does at least two technical sessions in each event.  I attended his first session on CAD Management.  This was a very thorough presentation that covered just about anything we need to know for setting up and maintaining SolidWorks on modern computers.  One important point he brought up is that 64-bit computers and OS are not faster than 32-bit.  They are simply able to handle more RAM (16GB vs 4BG).  Other major point was that we (SolidWorks users) need to make sure we have administrative rights to the computers we use.  Needless to say, this was a very informative session that I recommend to all.

It was time for lunch.  The meal of good.  The noontime entertainment included the giving of prizes (which I will cover in a future article), and a review of what’s new in SW 2009 by Richard Doyle.

Some guy named Matt Lorono did some session about drawings after lunch.  🙂  I covered some of the basic information and advice about Sheet Formats and Drawing Templates, and covered some new SW 2009 features, including the new Title Block Editor.  I then covered more advanced topics, like how to create watermarks and how to make Drawing Templates utilize multiple Sheet Formats.

The next heavily attended session I went to was by Mike Puckett on mold design.  Mike is taking a newer approach to his presentation.  Although he still based it around a Power Point presentation, he spent most of his time demonstrating within SolidWorks itself.  He did such a good job with this methodology, I don’t feel he really even needed to use Power Point.  He showed us some of the basic techniques he uses to create models of molds from existing parts.  There was a lot of good information, such as using a preliminary skeleton sketch, how to translate swoopy shapes to a mold, and how to design ejector pins.

Over all, the Technical Summits just keep getting better!  If you cannot make it to SolidWorks World 2009, I recommend at least trying to attend a nearby Technical Summit.

The Experience Grows!

So, as I got into the Engineering and Manufacturing industry I had no idea really what to expect. All I knew is that I wanted to design new things and be creative with all of my ideas. Since the beginning of the year I have gained a tremendous amount of knowledge and experience that has helped me to become a better Engineer and get a good grasp of how the Manufacturing process takes place. Since then I’ve been working with Solidworks 2007, helping my company refine the ways they produce models and drawings. I’ve been in charge of re-designing all of the drawing templates and a lot of the standard parts that we use on a regular basis as well as a number of assemblies that have specific configurations based off equations provided by some of our customers. We will be switching to Solidworks 2009 within the next couple months so I look forward to that.  It’s just been great to be able to implement a lot of these changes; they have really sped up the process by which we complete projects.

            With the economy in its current state people are being laid off left and right so it’s not very reassuring no matter what field you are in. I’m no stock market analyst or economic expert but the engineering industry seems to still be prosperous so for that I am grateful. I am hoping the New Year will bring fourth positive change and that the design field will grow even further! More to come in the near future! 😀