Zuflow is a web app that helps you build 3D assemblies with visual logic. Map your parts on a node graph and let the engine do the math. 🕸️ Visual Constraints: Wire parts on a canvas. See your logic. ⚡ Auto-Solver: Define relationships and watch parts snap together. 🚀 Browser-Native: Fast 3D rendering with zero downloads. 📐 Instant Drawings: Export dimensioned PDFs and DXFs
Hi Product Hunt! 👋 I’m Matas, the solo dev behind Zuflow.
This started when a mechanical engineer friend was venting to me about how frustrating CAD assembly tools are. He explained that most of the time, you just want to line up simple things like holes or flat surfaces, but instead, you get stuck fighting with opaque mates and hidden constraints.
As a software developer, it seemed crazy that such a common process was so clunky. I realized a visual, node-based system would make way more sense.
So, I built Zuflow. It’s a web-based constraint solver where you:
Drop in loose STEP files.
Wire up the relationships on a visual canvas.
Watch the engine automatically snap the parts into place.
Export dimensioned engineering drawings and PDFs in a single click.
I’d love for you to try it out with some parts and roast the workflow. Does a visual node approach actually make things faster for your daily work?
Let me know what you think in the comments! I’ll be here all day answering questions and fixing bugs. 🛠️
Okay this one hits close to home — spent years in SolidWorks and Fusion during my robotics/mechatronics days, and the moment assemblies get complex, mate relationships turn into an unreadable mess in the FeatureTree. A node graph is such an obvious fix in hindsight that it's wild nobody's shipped it well before.
Question: how does Zuflow handle over-constrained assemblies? That's where most parametric solvers either silently fail or throw cryptic errors. Does the node graph give you visual feedback on which constraint is the offender?
Browser-native + DXF export is the combo that makes this actually usable in the real world. Rooting for you 🫡
About Zuflow on Product Hunt
“Build 3D assemblies with visual logic”
Zuflow launched on Product Hunt on April 17th, 2026 and earned 64 upvotes and 3 comments, placing #36 on the daily leaderboard. Zuflow is a web app that helps you build 3D assemblies with visual logic. Map your parts on a node graph and let the engine do the math. 🕸️ Visual Constraints: Wire parts on a canvas. See your logic. ⚡ Auto-Solver: Define relationships and watch parts snap together. 🚀 Browser-Native: Fast 3D rendering with zero downloads. 📐 Instant Drawings: Export dimensioned PDFs and DXFs
Zuflow was featured in Design Tools (259.5k followers), Hardware (11.4k followers) and 3D Modeling (1.9k followers) on Product Hunt. Together, these topics include over 39.3k products, making this a competitive space to launch in.
Who hunted Zuflow?
Zuflow was hunted by Matas Rutkauskas. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Zuflow stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Matas Rutkauskas