View allAll Photos Tagged MachineDesign
When the shadowpeople gather making decisions, who takes which shadow and colours it - it looks about like this mess. In a great plan there is 50 % light and 50% shadows - so important people!
'Confession - this is a machinedesign - meaning that the end of slideroll made himself double-exposure'
(original slide was taken in Kathmandu , Nepal in 1990)
Captured by Duncan Rawlinson through a mix of AI and photography, this close-up view of a humanoid robot features green-tinted eyes that create a powerful focal point against the backdrop of intricate cables and components. The high level of detail in the design highlights the complexity and sophistication of artificial intelligence technology. This visual captures a glimpse into the possible future of AI, presenting a unique and thought-provoking look at the evolution of robotics.
Simulation Mesh Options
A new “four corner mesh” option in Solid Edge ST4 Simulation creates a more uniform mesh around irregular shaped faces of parts. Notice the original mesh, shown transparently, has non-uniform mesh elements. Using the new option creates an orderly mesh with well shaped elements giving users more accurate results from
One-Click Fastener Stack Ballooning
Solid Edge includes a handy fastener system command for adding a stack of fasteners for bolting parts together during assembly design. New in ST4 is the ability to document that stack of parts on drawings with a single click. The image shows the resulting balloon with multiple part listings. These item numbers match the associated parts list (not shown).
Multi-Cad Using Lightweight JT
Solid Edge includes powerful collaboration and data management tools leveraging Teamcenter Express. New capabilities in ST4, leverage lightweight JT data created from just about any CAD system for faster assembly design. This images shows how a JT assembly from PTC is added to a Solid Edge assembly in a unique stand-alone structure editor. The assembly can then opened in Solid Edge where the JT data from PTC is then positioned with other Solid Edge parts. Companies can design better in a multi-cad environment.
User Drawn Explode Flow Lines
New in Solid Edge ST4 is the ability to draw custom flow lines to depict how parts are assembled or disassembled. Flow lines can be automatically created between key points using a path express tool then individual segments cab be dragged to show custom explode paths. This image shows the custom flow lines that depict how parts are assembled or disassembled. When used with automatic exploding, users can quickly create highly customized and accurate exploded drawings.
Solid / Sheet Unification for Simulation
A new “unite” option and Solid edge ST4 Simulation let the users merge surfaces and solid models for speeding simulations. This ability allows fast solving 2D element is used for the mid-surface to be used with solid elements used on solid models. The example here shows the mid-surface of a sheet metal part merged with adjacent solid frame components. The mesh operation automatically detects face types and applies the appropriate element. Solid Edge’s integrated design environment allows mid-surfaces (ordered features) to reside in the same file as synchronous features and kept up to date automatically during edits. This capability gives faster results while allowing analysis of much more complicated models.
Synchronous-Based Web Network
A new synchronous-based modeling feature in Solid Edge ST4 lets users create complex rib networks for stiffening plastic parts. Users first define a web network through a series of 2D sketches but edits are made directly to the created 3D feature. Precise changes can be made by adding dimensions to the completed feature or dragging face elements where tangent elements are automatically maintained. As with any synchronous-based feature edits the happen in real time and without regenerating the entire model.
Horizontal / Vertical 3D Model Relationships
A new 3D model relationship in Solid Edge ST4 lets users apply horizontal or vertical relationships to faces of completed native or imported parts. Tapered faces can be made orthogonal with a single click and that relationship is saved with the model. The examples shown here illustrates how an angled bracket (the transparent image) was made horizontal by applying this relationship to one of the sheet metal faces. After application of the relationship, the bracket snaps vertical. The real power is users can easily make changes at anytime without having to understand feature construction, as well as allowing edits to imported models.
Dimension Attribute Copying
A new option in Solid Edge ST4 let users copy the attributes from one dimension to another. The image shows a dimension with a specific style (in the inset image) along with other dimensions of a different standard. A single click copies those attributes to the remaining three. This new command lets users create customer or company specific styles then quickly replicating those attributes to other dimensions. This copy utility can also be used to clean up imported drawings.
Drawing Notes with Advanced Text Options
New capabilities in Solid Edge ST4 let users create highly customized notes using Text Boxes. The image shows a text box with full font control such as underlining, bolding, as well as line bulleting or numbering. When entering fractions, the results can be automatically represented as stacked, skewed, linear, or shown as a tolerance. Special characters can be inserted with an improved user interface and notes libraries can be created letting users quickly added standard notes to other drawings.
The photo above shows two different realizations of a working origami roller bearing;
The yellow bearing is the inner yellow triangle and the 3 inner rolled sheets of paper making the cylinders.
The Red Bearing is folded from a single 21 inch square sheet of card stock (very light poster board). The rollers are simulated using inner fins that are folded curves.
The yellow bearing was my original concept before I learned that you had to use a single square.
Both will spin relatively freely on an axel. You could use any rod including a tightly rolled sheet of paper.
The yellow bearing will support considerable weight. I have used additional card stock to make arms which are strapped to the inner triangle. Arm extensions can be added by inserting additional material. I have tested the yellow bearing with three arms that were over two meters in length. The bearing still rotated freely with very minimal effort.
I also strapped 15 (1 inch) wooden blocks to test for weight. The rolled cylinders do not squash perceptibly and provide a relative smooth rotation with very minimal effort.
The red bearing depends on the strength of the paper for bearing up under weight. I believe the fins will squash inward but have not tested this bearing under substantial weight. Under moderate weight, it holds up quite well.
You can reduce the width of the red bearing by using a narrower rectangle, thus reducing the friction caused by drag. I can see using this roller on a vehicle that will roll on slight inclines. I might have to try this with either my Duesenberg or my fire truck.
For a discussion of machine design with bearing go to this link:
machinedesign.com/whats-difference-between/what-s-differe...
You will notice that most bearing have many more rollers. I decided that for my “paper only” design that just 3 contact points would be most efficient.
Simulation Mesh Options
A new mesh option in Solid Edge ST4 can automatically accommodate for surface curvature. The left most meshed image shows a curved surface with irregular mesh elements. After adjusting the options, a more uniform mesh is created, shown on the right. This new meshing option improves overall accuracy of simulation results.
Horizontal / Vertical 3D Model Relationships
A new 3D model relationship in Solid Edge ST4 lets users apply horizontal or vertical relationships between geometric key points. Typical uses are to make faces centered about other faces, or make key-points or faces horizontally or vertically aligned to others. The example here illustrates how a hole was centered about an adjacent face. Because edits in synchronous don’t need to follow creation rules, holes can “push around” features created prior. After application of the relationship, the holes location can be edited where the adjacent face grows to maintain the centering. The real power is users don’t have to pre-plan design intent as it can be established to completed models, and this relationship can be added to imported models.
Rockwell Automation Servo Drive Features Integrated Motion Over EtherNet/IP Technology for Simplified and Enhanced Machine Design
Unless I'm not seeing something that is simply not visible in this photo, the arrangement of U-joints (circled in yellow) is not recommended practice. Perhaps not as noticeable in a low-speed application as in this steering system, the yoke parts at each end of the Cardan shaft should instead be inline with each other in order to cancel out rotational speed irregularities inherent in these Cardan-type U-joints operated at an angle. Yes, it may not be a big deal here where that rotational speed is usually near zero, but the geek within me makes me at least question it.
When no physical constraints are applied to the geometry, the physics engine allows the parts to move freely, subject to gravity and physical interaction with each other.
A rotary motion gripper in the Reuse Library. This intelligent object is embedded with kinematic data, in this case the correct motion of the grips.
Once you have finished placing the simple components, you can begin swapping them out for more complex geometry.
Model of a device for testing the way in which weights attached to a rotating shaft would move outward to a degree depending upon the shaft's speed.
Leonardo da Vinci described this principle hundreds of years before it was put to use in, among other things, governors for steam engines and aircraft propellers.
"Leonardo da Vinci: 500 Years of Genius" at the Denver Museum of Nature & Science, Denver, Colorado.
The exhibit featured, among many things, life-size and/or large-scale models of ideas found in da Vinci's notebooks.
Exhibit web page:
www.dmns.org/visit/exhibitions/leonardo-da-vinci-500-year...
Denver Museum of Nature & Science (museum web site):
Continuing to define the physical behavior of the machine by adding operations to tell the gripper how far and fast to move.