144
this post was submitted on 07 May 2025
144 points (94.4% liked)
Ask Lemmy
31541 readers
1165 users here now
A Fediverse community for open-ended, thought provoking questions
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
6) No US Politics.
Please don't post about current US Politics. If you need to do this, try !politicaldiscussion@lemmy.world or !askusa@discuss.online
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
That using 100% free and open source software is more important than actually getting your work done.
In a thread about Affinity Photo where someone insisted that we should all use gimp and just not edit photos if gimp doesn't have the features we need rather than asking Serif to port their software to Linux.
Also in several threads about migrating from Windows to Linux where every missing or complicated feature was brushed away with "just get used to not being able to do it, even if it's critical to your workflow".
It's always good to use FOSS where possible.
If it isn't possible for you, then try don't. Perhaps try advocating for the FOSS alternatives to be better and drive up competition, forcing the software you do use to innovate.
That is 10,000% people who don’t do creative work especially professionally. I am fine with gimp and darktable versus anything Adobe/paid but I also barely use them lol. I would be back off Linux in a heartbeat if I honestly couldn’t use something I needed even though I prefer it.
Medical work, too. Several exam machines only work with Windows. I've heard once that "wine's pretty good nowadays", which completely ignores the detail that it isn't tested with said equipment and its drivers.
Anything related to engineering, whether civil or mechanical, also goes with either Windows or Mac, because the free CAD options don't hold a candle to AutoCAD and others.
Lastly, there's no FOSS alternative to completely replace Microsoft Active Directory, so offices where 90% of the work is done on the web browser won't bother because they'll be losing control over individual machines.
There's so much focus on "me" and "freedom" that they often forget there's a whole damn world of different needs around them.
I agree with this, outside of bs windows throws if you change the motherboard. Desktop Linux stability reminds me of Windows 7 levels of OS stability. Great for most, not for mission critical.
With that said i feel you are being overtly critical to FOSS CAD software. I use FreeCAD in a professional setting and it is extremely stable, and for my use case it is as capable with no missing features. Yes the software isn’t beginner friendly, but I honestly found it made my designs more accurate since it had more constraints for sketches.
What were you using BEFORE FreeCAD if it has MORE sketch constraints?? Man, I found it so limiting compared to NX. Especially the sketching. And surfacing appeared to be basically nonexistent. Maybe I'm too spoiled with NX, but I dont think I could function for even a day on FreeCAD. It's worse than SolidWorks (and I hate SolidWorks). I really, really wanted to like it. I even gave it a second chance when 1.0 dropped.
Fusion 360 and before that Google Sketchup
Ah, ok. I've been using NX since it was still Unigraphics, so I am admittedly biased. I haven't tried any of the newer things like Fusion or Sketchup. Might I ask what industry you use FreeCAD for at a professional level? Just curiosity. I'm automotive interiors tooling, so I'm pretty dependent on strong surfacing tools. Lots of A-surface stuff.
Also, how would you model this up in FreeCAD? This took me about 15 minutes in NX, with one sketch and some offset curves. I was making a 3D printed tag for my daughter.
I tried for over two hours in FreeCAD, but only got this far. I could not extrude individual bodies from one sketch, I had to make separate sketches for each shape. Offset curves didn't appear to be a thing, and I couldn't find any form of synchronous modeling tools. So, making those raised outlines was a whole other challenge. I ended up having to extrude a sheet taller than the main body, then thicken it. I couldn't figure out how to select face edges for use in other commands, either. I ended up giving up.
I use freecad for mainly functional 3D Prints, many of which I sell on Etsy and eBay. You can see my designs here: https://www.printables.com/@16bitvirtual/models
As for how to do yourbunny. For the most part, you are falling into the biggest hurdle for FreeCAD. FreeCAD has constructing geometry which cannot interfere with the model. But it also means that if you aren't very specific with your design it will fail. For example with the Bunny you need to define in your sketch what you'd like to pad or pocket out.
Then you work on adding details
The constructor lines are why I love FreeCAD since in other software I had to be very specific on what I can add without voids being accidentally added into my model.
Yeah, constructor/construction lines rock. That's something relatively new in NX, too. I think with release 1921 or something. Hugely beneficial.
The lack of intersecting geometry is a big hindrance to the way I model things. Pads and pockets are something I haven't dealt with since probably NX 7.5, back around 2012. I'm not sure if I can change at this point.
For 2D things, I really like to make primary sketch for all my features. Maybe a second sketch for holes and slots. And my 3D models mostly start with customer data, and I extract surfaces from there. I define parting lines with shadow curves, and split my slides out with sheets normal to the target surface. I then extrude surfaces out along a vector to outside the envelope of the tool, trim them, and use a bounded plane to close it up. Sew into a solid body, and it's a slide. No sketches at all sometimes. But tons of intersecting geometries until the end. Then, adding vacuum, water, air, mounting holes. Seal grooves. Those usually take sketches.
I'm obviously not trying to do my job in FreeCAD, my company uses NX. But I dont think I can easily change my workflow just to do my personal stuff with it, since it is so radically different.
I like your models. It's nice you have a cohesive design for all your handheld display stands, so they'll all look good together.
How long did the bunny take in FreeCAD?
The bunny 20-30 minutes since I don't use Eclipses too much, and how to do Eclipse arcs to make a solid outline. I'd say if I was more familiar it should take less time. Since this Bunny looks way rougher than I intended too, but it was a proof of concept.
The interception geometry issue was the biggest learning hurdle for FreeCAD for myself. However since moving I've grown to prefer it since it avoid voids being created by tiny intersections which are difficult to see. For example for the skatch bellow, if you are not careful you may miss the middle and create a random hole in your model. Had this on many of my earliest designs and spent a lot of time trying to fix it since the software wouldn't render out the shape right.
I also I love how FreeCAD changes the color of a sketch's lines green and a brighter green when everything is contained. I see it like a game and it forces me to think about how the shape should be rather than what's close enough to what I need.
That said, while I was like you and worked with a single sketch and padded, pushes and constrained my way to make the model I needed. FreeCAD does like you import existing geometry into a design. In the current BETA they are allowing that geometry to even be constructor geometry to make modeling easier. So you can continue to base your current sketch upon the previous one, and it'll update as you move along.
While it's not in a single sketch, I found doing it this way makes it much easier for myself to maintain a model and go back into it to fix parts of it when needed.
I also know FreeCAD isn't for everyone, and there are hurdles to move to it. But I personally found it works with my workflow, and not being tied to yearly licenses is a relief for me.
I could go on for days about the problems with medical devices. I write software for one of those at my day job and as much as our team would love to port the software to something other than Windows, that would be a logistical nightmare.
The thunderbolt connection alone can break because of a thousand factors, even on the exact combination of hardware and operating system it was tested with. Processing of medical images is often very GPU-heavy which gives us the same problems as with CAD software.
Even if you get all the technical problems out of the way, medical devices need to be certified before you're allowed to use them for diagnostics. This often includes an exact specification of the platform you run the software on. If you just take something that's certified for "Windows 10 between 20H2 and 22H2, Intel or AMD CPU, device driver version 8.1.23" and try to run it on Wine, I would expect the American FDA, German TÜV and Chinese NMPA to fight over who gets to kick your door in first. It might be possible to get a certification for a Linux version but probably only for one specific combination of distribution, display server and desktop environment.
CAD options also flow over to the whole GPU debate as well. Yes, Nvidia's company practices are awful. Yes, I'd love to have more options. But this doesn't change that most of the heavyweight CAD options out there don't play well with non-Nvidia GPUs.
I'd love it if there were FOSS / GPU-agnostic CAD options. But until then, focusing on what works is important, y'know?
I'd call this political as well