this post was submitted on 06 Sep 2025
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3DPrinting

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I am not an engineer. I'm not even good at math, and my spatial reasoning skills are nonexistent. With that in mind, here are the CAD programs I've tried.

Blender, Pros: Free, surprisingly comprehensive. Cons: Not parametric, can't precisely measure or constrain models, all the extra stuff you get like rendering has no use in 3D printing.

Onshape: Pros: Easy to use, convenient (I've successfully edited a model on my phone), free*. Cons: Runs ~~on someone else's computer~~ in the cloud, not private, enshittification is sure to come shortly if history is any indication.

Fusion360: Pros: seems to be what everyone else is using. Cons: enshittification is already happening, runs locally with limited saves in the cloud so you don't own your files but also don't get the run anywhere convenience of the cloud.

Plasticity: Pros: buttery smooth workflow, pay once run forever, runs and saves locally. Cons: Not peremetric so hard to go back and adjust things later.

FreeCAD: Pros: free, open source. Cons: workflow as rough as sandpaper, constantly crashes.

Plasticity and Onshape have proven to be the most productive choices for me. If only Plasticity were parametric it would be the perfect software for me personally.

I want to like FreeCAD, I really do, but it's so hard to use. I love Plasticity, but it's meant for making 3D assets for games etc. using hard surface modelling, not so much for manufacturing.

If I may digress for a moment, I work as a network admin. I'm familiar mostly with Cisco at work, but use Ubiquiti at home. Cisco equipment is monstrously expensive from a consumer or prosumer perspective, and the only way to get true hands-on experience is to buy used equipment from ebay which may still be pricey.

Ubiquiti's market strategy seems to be to make the kind of gear that a network admin would want in their home. It's inexpensive relative to the big fish like Cisco, but has a fairly comprehensive feature set. The idea is to entice Joe IT guy to buy Ubiquiti gear for his house, fall in love with it, then push for the company to switch to Ubiquiti the next time they upgrade.

What I want is the Ubiquiti of CAD programs. Easy to use, low barrier to entry but comprehensive enough to use professionally.

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[–] Dirk@lemmy.ml 48 points 1 week ago (3 children)

FreeCAD: Pros: free, open source. Cons: workflow as rough as sandpaper, constantly crashes.

It has a learning curve (like all software), yes. But I cannot confirm the crashes.

[–] Jocarnail@lemmy.world 2 points 3 days ago* (last edited 3 days ago)

It is getting better, but I still get crashes in 1.0. I feel like there are some specific tools and features that are a lot more prone to crashes and others that are quite solid. I had crashes in particular with the thickness tool and some joins in the assembly workbench.

[–] Naich 37 points 1 week ago (1 children)

The 1.0.x versions have been rock solid for me. I like using it, but that might just be the Stockholm syndrome kicking in.

[–] KingRandomGuy@lemmy.world 10 points 1 week ago

Yeah 1.0 has been quite stable for me. I especially recommend the weekly releases with features planned for 1.1, like better sketch projection tools and snapping.

[–] shelf@lemmy.dbzer0.com 11 points 1 week ago (1 children)

I love freecad but even the latest release has some occasional crashes. For instance if you try to use PartDesign_Chamfer or PartDesign_Fillet and then go back and edit any of the sketches those were applied to things start to get wacky.

[–] JustEnoughDucks@feddit.nl 3 points 6 days ago

I agree I have had some chamfer and fillets trouble that even wasn't there before (a not-completely-tangent arc cutout from a square exposes this clearly) and will cause faces to shoot to "random" positions. Things can get wonky also because the Topological Naming Problem isn't 100% gone, but a model getting messed up is not the same as crashing.

Still haven't had a single crash in 1.0.2.