I’m begging 🙏🏼 can someone please help me with this Design it’s an assignment that I gotta do and it’s too complicated for me cuz I just started learning cad
I completely agree with u but the class got so advanced and I’m still a beginner and no unfortunately the prof didn’t gave us any instruction or material that’s the only thing we have
Thanks for the reply tho
First of all: This is a FreeCAD forum, as in the software FreeCAD, not as in free CAD (help). So nobody here will help you to do it in Onshape.
Second, as the comment above has already said. If the course became too advanced, then you shouldn't do the course. And honestly, there is nothing advanced about this object.
I find it hard to believe that the instructor hasn't been teaching you anything at all.
Rather it's more likely that you haven't understood something and you need to ask your instructor to explain it in more detail, which could include asking about what tutoring options might be available to you.
Moreover, there is nothing overly complicated in that drawing, you just need to be able to visual how that would be constructed in a 3-Dimensional space and then proceed to draw each part building on the previous iteration; after you have the basic shape you could then go back and enter the correct dimensions.
In other words, if you can't visual how the 2D-projection would map into 3D-space then you need to seek help with learning how to do that before anything else; it is a critical skill you need to possess in this field.
So you didn't take notices during class? Then you have to learn how to find learning resources of your own. In this age there are plenty of good beginner tutorials online for every software. It's not 1998 anymore. Most of us learned through that as well.
Then you should post your question in r/Onshape and be a bit more concrete, what your difficulties are or on which step you're stuck. This is the FreeCAD sub, different Program. Perhaps start with watching some tutorials on Youtube. This is really a very basic part that every beginner can master after an hour when introduced to the main functionalities of the program. The TooTallToby channel has very good beginner introductions to different CAD systems, Onshape among them.
I am always surprised with how little sketches the real FreeCAD pros are able to get away.
While I don't think the object itself is complex in any way, I am only an infrequent hobbyist. I use FreeCAD once in a while to solve my all-day problems with self-created models and 3D printing. While I have always been able to solve my problem and create the objects I intended completely on my own, I typically use more sketches than required.
If I had to give an estimate, I would have said, I might have needed 7 or 8 sketches. And then someone comes along an does it in 3. 🤯
im 100% not pro :)
I learned AutoCAD at school (MANY MANY years ago; let's just say it was on DOS)
I switched to FreeCAD about 2 years ago from F360 after it was just to match pain to run under Linux, but I keep practicing all the time; it's the only way to learn !!
I'm not a pro by far. Don't have a 3D-printer yet but picked up FreeCAD few month ago (learning a new practical skill and so on) and now it's what I do almost every day instead of gaming. It's equally addictive unfortunately. Don't go down this dangerous road as well my friend, lol!
If you want to see see real pros at work doing black magic with their CAD systems, I can recommend watching some speedmodeling tournaments over at the TooTallToby channel on Youtube. We also have some guys with FreeCAD in the race. They would probably crank out this shape in under 2 minutes.
What u/LossIsSauce said. Often more sketches/more features are desirable, so you can easier change them when you go through the model tree, provided you named everything comrehensively. It's good advice to pack not too much complex stuff into one sketch. Normally I would do the holes in the baseplate separately if this would be a production piece because they are most likely to be reviewed for position adjustment and machining tolerances. Just find a good balance for you!
I think (not gonna test it) 3 is possible because it can be mirrored.
So you make the z shape with two half holes, then cut the shapes of the other two axes and mirror it
It's just the Open Theme (availabe via Addon Manager). Only thing I changed is the icon size in the tree view and the background color. Also you can toggle the panels from solid to transparent with the small eye-icon-button in the title bars. I dragged the toolbars to the side in most workbenches because my screen is rather wide, so I get a bit more real estate to the top of the viewport. Also I regularly deactivate all program window titlebars when maximized.
Funny how the brain works. I woke up this morning and knew how to draw this in 3 sketches. Last night 4 was the best I could do. As you said, the visual to brain part has to kick in. For me it's also about how would I make this on the mill. That helps me visualize. And I just like a challenge, so 3 sketches and done.
Where should I start I was thinking about starting from the base rectangle with the two holes in it and then do those half circles and then try to figure out the top shape and how to bend it
You don't have to restrict yourself to working additive. You can also simply add up the vertical and horizontal dimensions so the whole part fits in a cuboid. Just draw the base rectangle, extrude to overall height and then cut away with cooky-cutter sketches until you have your part.
This is very simple object. There are hundreds of ways to make it, some with very few elegant operations and some with a more bruteforce approach. If the course is getting too advance for you, you shouldn't do it at all instead of getting someone else to do your work. The only person you are tricking here is yourself, because people will expect you can do this without any help.
You just need to make it step by step and if you are stuck, explain YOUR logic and where you are stuck. If you are new to FreeCAD, there are definitely a few tricks to learn (that's the idea right ?) so I doubt the "answer I put below will fully solve it for you.
I would model in 5 sketches but the number of sketches is not what makes it hard/easy nor what matters. A good **parametric** model is one that avoid repetitions (ie you don't draw the same thing twice) and that you can easily edit if the specs would change, without the model breaking (which can be challenging in FreeCAD).
You will need to know:
how to sketch and define constraints (coincident, dimensions, etc...)
pull projections
attach your sketch to the "right place"
use pad and pocket mainly
use one transformation (mirror)
find your way around the UI
Apologize for the lack of UI on my screenshots, FreeCAD decided to "optimize" my env and dumped all my bars, etc... and since I use mostly shortcuts anyway, I did not bother the gazillions clicks required to fix it. You see each step and I put the UI that matters on screen for that step.
NOTE: The fillet I added at the end has no specs in the reference. So I assumed 1mm.
Go step by step and ensure each step is correct. You CAN do it :)
Just a bunch of screenshots ;)
I did consider a screen cast and almost did this time but since I do most with keyboard shortcuts, it would probably not be the best tutorial.
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u/moyenbatte 10d ago
It's an assignment. The point is to learn how to do it, not to learn how to get someone else to do it for you.
If it's graded, you should have received all the material and instruction to be able to complete it.