Direct CAD News & Views from Kubotek USA

When Design Intent Bites you in the Mouse, use KeyCreator!

Posted by John Agoglia on Mon, Sep 27, 2010
This post is courtesy of Walt Silva, Pro CAD describe the image

Purveyors of feature-based parametric modelers constantly trumpet their ability to capture “design intent” in a model. (A typical example is “A through hole will always be a through hole.”)

Now after 42 years as a design engineer, I can honestly tell you that design intent will bite you in the mouse as often as it will help you! Why? Well, building design intent into a model presupposes that you know what will be happening in the future to your design.

I’ve got news for you. If you’re that good at predicting the future, you should probably pack up your CAD station and go down to the local track. You’ll make more money betting on the ponies! All kidding aside, let’s look at the typical example illustrated above.
This part was designed in SolidWorks and imported into KeyCreator.

In our Power Play #1 we already looked at how we can quickly modify this part even though it is not native to KeyCreator.
This time let’s up the ante! We can also quickly make a major modification that is a real headache to accomplishPowerPlay2  resized 600 in SolidWorks!

Notice that the rectangular bosses that cross the bottom face of the original part stop short of the cylindrical wall.

In the original design, these bosses were created by sketching centered-rectangles that were then extruded upward from the main body.

The design intent was to create a rectangular boss whose dimensions could be quickly changed using the magic of parametric driving dimensions. (That sounds impressive, doesn’t it?)

PowerPlay2 2 resized 600Of course, when the manufacturing team got involved, their first question was, “Why can’t we just extend the bosses out to the cylindrical wall. (Illustrated to the right.) This is a cleaner, simpler part to fabricate.

Now if you anticipated this change in SolidWorks, you would probably have approached building the part in a different way.

Unfortunately you didn’t. With the current design tree, going for a root canal would probably be a more pleasant experience!

In KeyCreator, however, the change is astoundingly easy! We simple use the Offset Face tool and use Face Logic to PowerPlay2 3 resized 600automatically select a pattern of the four faces. These faces are then extended out past the current cylindrical face. (Four simple mouse clicks!)

The extended sections are then quickly trimmed using the Single Trim Function to get our final part.

The Offset Faces Tool used in this example is part of an extensive set of face manipulation tools that cannot be equaled by any other mid-range CAD solution.

Combined with the power of face logic and pattern/feature recognition, this one set of functions provides over one hundred powerful design manipulation tools!


So the next time design intent bites you in the mouse, think about coming to KeyCreator, where you can always modify your part regardless of your original design concept.

Topics: Direct Dimension editing, 3D Direct Modeling, KeyCreator

CAD Direct Modeling with the 3Dconnexion SpacePilot Pro 3D Mouse

Posted by Chelsea Gammon on Fri, Apr 30, 2010

When I first saw this product's box on my desk, I felt like it was Christmas morning. Here's why.

At a previous job, actually my third co-op while attending Northeastern University, one of the industrial designers in the company had one of 3Dconnexion's smaller, more basic 3D mice. Now I know it was the SpaceNavigator mouse. A black rotation knob encased in soft-touch rubber-like material that sat on a chrome-like silver circular body, with a constant soothing blue glow being dispersed underneath. What was this, 2035? Where had this come from? I always loved high-tech gadgets from a young age so I suddenly felt out of the loop.

I thought it was the coolest piece of technology, and was admittedly in awe of it. It looked like some sort of spaceship or alien disc. When I first noticed him using it, I was almost nervous to walk too close to his desk, fearing the thing would shoot something at me or say something to me, like Hal from 2001 Space Odyssey. This designer's desk was immediately behind mine, so I tended to sit and stare at it for a bit each day. He must have eventually gotten used to this.

This illusive creature didn't show up again on my radar until a bit later. I've been to several CAD software rollout seminars over the years and at the more recent ones, they had these bad boys out on display for test drives.  I was usually one of the first people to unabashedly sit and give them a shot because I think they are things of beauty. I always dreamed of getting my hands on one for a couple hours, if not owning one. This was the first time I saw some of Connexion's larger, more complex 3D mice. These were amazing specimens, comprising the same basic rotation knob as the SpaceNavigator, but surrounded by a zip code of buttons, sometimes a small LCD screen. Amazing.

About a year and a half later. Two months deep as an applications engineer at KubotekUSA, Inc. The white shoebox-size 3D Connexion box awaited me beside my laptop. I eagerly opened the box, and immediately took everything out and peeled all protective wrappers off the product (which my father always said should never be removed from ANYTHING you've just purchased. My parents purchased and installed a new dishwasher about two years ago, and I think the bright blue commercial protective plastic wrap still covers the front. A white dishwasher. Blue wrap. Please.)

I looked at this new SpacePilot Pro mouse. I felt like someone had just given me a new car. I sent a close friend (a non-engineer who had never heard of a 3D mouse) a picture of my new toy. He responded saying he was seriously intimidated by the thing, and that it looked like after it would make him coffee, it would proceed to read his mind.

About 9" in full length, the base of this charcoal and black-hued mouse is shaped like an undulating wave, very ergonomic for hand and wrist placement. A thick strip of a soft-touch gripper area cuts down the middle of the mouse so your hand and wrist don't slide around while in use. The rotation knob lies in the center, above which is an LCD screen similar in size to that of the common digital camera. The LCD screen displays the customizable functions attached to the plethora of buttons on the mouse's, what I like to call, ‘dashboard'. In addition to this, the screen also displays Outlook emails, opens up web browsers on your computer screen, opens and controls your computer's music player, and I could go on.

I really appreciate that with a barely perceptible flick of the finger or wrist I can quickly execute both menial and complex tasks in KeyCreator, when using the SpacePilot Pro mouse. This thing has 31 programmable/customizable buttons, to be exact. I have programmed every single one (which, incidentally, was easy).

Some of the mouse button functions that I have customized to be most easily selectable (because they are larger, or because of their location) are Delete Multiple Entities, Escape, Delete Dimensions, Direct Dimensional Edit, Construction Planes, Undo and finally... Autoscale. I am addicted to this function. I've programmed it to a button larger than the others that is set apart from the rest. Some of these buttons will soon be super smooth and label-less due to abuse.

Utilizing a 3D mouse with programmable buttons does, indeed, decrease the time it takes to build a model in KeyCreator. I can plow through tasks with lightening speed, without even thinking about it. My fingers have trained themselves to remember when to shoot over to which buttons to do which tasks. It was like learning an interesting unilateral version of touch-typing. Admittedly, it took some practice and getting used to, remembering what buttons were programmed to do what; however, once I reached a comfort level, my speed quickly increased. This mouse omits the necessity of excess mouse travel with your right hand, excess hand travel of your land hand (i.e. selecting Esc, Shift, Ctrl, Spacebar etc), and thus reduces design time. Amazing multitask tool.

Before I had the SpacePilot Pro, I had the more basic SpaceNavigator orb model. Although it lacks all those programmable buttons, it still significantly decreases mouse travel and design time. It's also very portable due to its size, and perfect for tradeshows and quick demos. After manning a booth at two tradeshows while using both of these models for demos, I can say they attract some attention. Show attendees would walk up saying, ‘What on earth is that?' The combination of demonstrating KeyCreator in conjunction with these 3D mice has been enjoyable. It augments the capabilities of our CAD software, making it more powerful.

There is no ‘honeymoon period' with the SpacePilot Pro mouse. This will be perpetually beneficial. I cannot wait to see what 3Dconnexion comes up with next, because it will likely further augment the CAD software industry.

If you are interested in buying a SpacePilot Pro, check it out on Amazon: 3Dconnexion SpacePilot PRO - 3D motion controller - 31 button(s) - wired - USB

Topics: Direct Dimension editing, 3D Direct Modeling, 3D Mouse

3D Direct Dimension editing Technology gets better in KeyCreator V9

Posted by Scott Sweeney on Thu, Sep 17, 2009


Version 9 is almost here.  We have been working very hard to enhance the user's ability create and edit geometry in the most straightforward yet robust manner.

 While history based modelers have used this technique for some time, the problem has been that you are constrained by the history of how you build the model.  With Direct dimension driven editing there are no constraints.  The dimensions are a wonderful tool for making powerful edits to one feature or a set of features.  And when you are done using the dimensions, you just delete them.

 

This workflow is perfect for developing initial designs, where you don't want to get locked into all of the preceeding steps in developing your design.  It is also great for developing tooling or fixtures.

This tool is a must have for a manufacturing department or company that wants to quickly prepare models for manufacturing or to develop operation sheets or work instructions.

Please watch a short video on the direct dimention edit enhancements we have made for Version 9 of KeyCreator, which is scheduled to be released this Fall.  Direct Dimension Enhancements in KeyCreator Version 9 Video

Best regards,

Scott

Topics: Direct Dimension editing, Direct Modeling, geometry-based modeling, KeyCreator V9, 3D solid modeling, Explicit Modeling