Advanced Creo Practice Drawings Pdf
Telly Piatt
First let me start off by saying thanks to anyone who has contributed to this site! This resource has been extremely helpful. I work for a small tech startup and our mechanical engineering staff is 3 people strong and resources are a premium. Not to mention we don't have the ability to purchase advanced packages like piping/cabling, mechanica, or windchill and we certainly don't have the funds to send our design staff to get training from PTC or one of it's affiliated training resource centers. Thus, most of us are self taught and this site is an immensely helpful tool.
I have two questions pertaining to large assemblies and large assembly drawings. I have made use of a lot of the tools on the modeling side in order to lighten up my top level assembly. I've used simplified reps, merged solids, and shrinkwraps in order to make my 3D models more manageable and this seems to have worked. However, these techniques do not translate when I move over to the drawing. Opening the drawing takes fair bit of time, ten minutes or more. Creating views is a pain staking task. By the time I create a view, orient it, select the rep, and align it, placing a sinlge view takes five or minutes. So here are my questions:
1. Are these load times and regenration times normal? Does anyone have some tips and tricks for managing large assemblies? What about tips for setting up my config.pro file. It feels like when I open the drawing it becomes extremely taxing on the system like it immediately grabs the master rep and it doesn't matter what's in session...
2. I have made use of the part flexibility function in several sub assemblies, mainly to handle wire assemblies since we do not have the cabling package. When I create a view in the drawing which highlights an area with the flexible assemblies they show up in their un-flexible state. I am not sure but I believe this happens as a result of my use of simplified reps. Can anyone shed some light on component flexibility and drawing view creation as well as drawing view creation with simplified reps?
I should point out I am running a 64-bit version of Pro Eningeer Wildfire 4.0 on a 64-bit Windows 7 machine with a 2.3GHz Intel Core i7, 16GB of ram and an NVIDIA GT650M graphics card w/1GB of dedicated ram. The files are all stored locally. And the license is on a server.
I think you answered your own question! It is possible your drawing is loading the master rep. Go to the file menu and find drawing models. In the menu, it should show all the reps being used by the drawing from your top level assembly. If the master rep is included in the list, then delete it. Try to only include reps in the drawing. Our startup for drawings includes a selection of a rep to prevent master rep from being included for large assemblies.
If I select "-Remove Rep" then it gives me the option to remove the Master Rep. However, my understanding of the downstream affects of doing this in the drawing is a little foggy. If my repeat region is populated based on the master rep I assume I will break the connection and my repeat region will have to be reworked. I am okay with doing this but I just want to make sure I understand the repercussions. While I am on the topic is there a way to identify which rep the repeat region is pulling the data from?
It's hard to answer your question without knowing how large your assemblies are, what you are trying to show on the drawing and how the assembly structure is set up. Basically, is it an installation assembly which includes showing how to assemble one system onto reference back ground information, or are you creating an assembly drawing of how to put together the system?
The drawing is actually a configuration drawing of the top level assembly. I have a top level assembly drawing which shows 5 different iterations of our new product line. This is controlled with a parent assembly which has five unique children. In the drawing I am trying to show the variations in the bill of materials and highlight the key differences in the systems by showing the same view of each system.
The top level assembly is comprised of PCBA's, manually routed wire harnesses, hardware which is repeated many times over, some flexible assemblies, a few mechanism constraints (which I am told are resource intensive), and a sub-assembly consisting of over 400 parts, which is repeated 42 to 84 times depending on the configuration.
I have taken advantage of the tools in the 3D model by creating simplified reps, merged solids, and shrinkwraps. In particular the sub-assembly which has 400 parts is reduced to 7 parts via a simplified rep and then turned into a merged solid.
MIke, I hope somebody else chimes in on this. We have our top level assembly sneak into an installation drawing every once in a while as the reference information, but our spec and best practice is to rename the structure so it matches the prefix of the drawing and then delete out unused objects.
Are you looking to design a 3D model on a computer? Are you planning on producing your model using a CNC machine like a 3D printer, laser engraver, or mill? Are you a beginner looking to get started? Are you an intermediate user looking to expand? Well if any of the previous is true then Instructable may be for you.
I am a passionate hobbyist who has a degree in k-12 technology and engineering education. I teach many different courses, some of which have to do with design, technical drawing, and rapid prototyping. After teaching 3D modeling to students ranging from 2nd grade through college I have come to realize that there are countless programs out there to use and even more tutorials on how to use them.
In my classroom, I mainly use two for 3D modeling and I will be highlighting them in this Instructable. I have also created my own tutorial video library that is streamlined, age appropriate, and most importantly short and sweet. My videos range from 30 seconds to 2 minutes are are designed to teach you a specific task. This is so you do not need to watch a 20 minute video (or read a 30 step article) to complete one thing that you are trying to do. Watch all of my videos (over 30) and you will master these programs.
There are loads of different programs out there that can be used to create a 3D model. Some good, some less good, mostly just based on personal preference. Software that is used to design things are typically referred to as Computer Aided Design software or CAD for short. For 3D modeling there are really two types of CAD programs; Solid modeling or Surface Modeling.
Solid modeling programs are based on dimensions, shapes, fills, and objects. They are typically used for creating parts that can be produced on a 3D printer, CNC mill, or other machine. Solid modeling programs typically have you start from a basic geometric shape or 2-dimensional sketch in order to create your part. By combining sketches and shapes you can create just about anything. Some popular examples are Tinkercad, Autodesk Inventor, AutoCAD, Solid Works, PTC Creo, and OnShape.
Surface modeling programs are based on meshes and nodes or points and lines that make shells of 3D objects. Surface modeling programs typically focus on visual appearance and are often used to create renderings or animations. These programs typically differ from typical CAD because the tools within the software often reflect hand tools an artist would use to create a sculpture. Popular examples are Meshmixer, SketchUp, Blender, Sculptris, 3DS Max, and Maya.
There are also some programs that are hybrids of the two, Tinkercad borders this line and Autodesk Fusion 360 is the most popular example. While surface programs are primarily used for onscreen applications, almost any CAD software will let you export your designs for machining production. Be warned that models exported from surface programs are usually larger and more complex files by nature. This may lead to issues in production on a 3D printer down the road.
The concept of learning 3D modeling can often be challenging. Learning how to create a 3D object on a 2D computer screen requires spatial reasoning skills in combination with hand-eye coordination that take some adjustments to get used to. Regardless of age, I recommend all first-time users to try Tinkercad by Autodesk.
Tinkercad is completely free to use and allows you to log in using Autodesk, Google, Facebook, Yahoo, or Microsoft. It is also web-based and compatible with Mac, Windows, and Chromebooks. Unlike other solid modeling CAD solutions, Tinkercad has you create 3D objects out of geometric shapes that are pre-made which is both good and bad. This is good because its simple and fun. In many ways it reflects playing with lego bricks or play-doh, something that is usually intuitive to all ages. it is also bad because it does not prepare you to move onto more complex solutions down the road when Tinkercad no longer meets your needs.
To get started with Tinkercad, I recommend you play around with the basic shapes. Look around your home, try to make an abstract version of something around you (coffee mug, table, chair, etc). Once you have the basics with moving objects around, changing the size of things, and lifting things into the air, start playing with making objects of actual proportions by using the ruler tool. Try to create a pencil holder thats realistic in size, or a phone stand. I've attached my current collection of Tinkercad tutorial videos to this Instructable, as well as longer videos that show sample projects from start to finish rather than short videos that show how to complete one specific task.
As I mentioned earlier, Tinkercad may at some point be limiting for you. It is excellent to get started, great to make simple models, but typically challenging to make larger or more complex things. Don't get me wrong, people out there make some incredible models in Tinkercad (browse the Tinkercad gallery and prepare to be amazed) and you can even make your own shapes using the shape generator or upload vector files. But if you're trying to make parts that need to be specific dimensions or fit together in an assembly, Tinkercad is probably not the most effective software solution.
c80f0f1006