SaaS ideas your next customers are already looking for
100 SaaS startup ideas for the people who said they'd pay, from agency owners to dentists. Micro SaaS ideas, AI SaaS ideas and B2B SaaS ideas: find yours, build it, sign them up.
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Pain points in business: what people struggle with
Search the problems to solve, as people described them on Reddit and other platforms, in their own words.
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CAD to Manufacturing Gap
Users struggle to convert CAD models, scans, and photos into clean, accurate, and manufacturable files for 3D printing, CNC, and casting.
In their words
manually verifying every tool path isn't something I want to do
the four sides didn't quite line up right but I need to model bodywork from the scans and need this accurate
is there anyone that I can just hire to recreate the model in CAD directly using my source files and drawings?
Has anyone here actually gone from a product photo → usable STL → successful print without spending 4 hours fixing the mesh in Meshmixer afterward?
I do a lot of renders of industrial models originally in step files and it's always a nightmare to convert/process them into something usable for render/animation.
10k stitching errors from catia imports (front bumpers, grills, inserts) were business as usual
Large assemblies lag, rebuilds and drawings can take forever, and crashes are becoming a s
I had to produce 2000 parts within a month. Most of the parts are less than 30mm tall, so I had to harvest them every two hours.
I spent 2 solid days in CAD fitting sketch curves, wrapping surfaces, and checking deviations before I had an editable duplicate of the object in CAD.
The models looked fine until someone tried to change the hole size. Then the whole thing fell apart and we redrew most of them.
You have to make a casting box to make the mold of the 3d print... building the casting box can take a long time.
we’ve had very visible layer shift lines occur when people lean on it
No matter what I try, the output of all LLMs is absolutely wild, especially if you ask to make a technical drawing.
The exported meshes come out distorted, with broken geometry, jagged shading, or completely missing faces.
CAD designers and makers
Where they talk
- r/SolidWorks
- r/3Dprinting
- r/Onshape
- r/blender
- r/3DScanning
- r/AutodeskInventor
- r/resinprinting
- r/fea
Tools they use today
- SolidWorks
- Blender
- Fusion 360
- Onshape
- Tinkercad
- FreeCAD
- Fusion
- Inventor
Why those fall short
- still slow; subassembly-only work causes misalignment rework
- imported threaded parts still carry heavy helical geometry; suppression is manual
- No time-based creep simulation setup; anisotropic print properties not modeled
- tracking lost on shiny, black or low-feature parts; scans incomplete and inaccurate
- unknown
Map of ideas
Drawing the map…