Question 1

What is non-manifold geometry and how do I fix it?

Accepted Answer

Non-manifold geometry includes edges shared by more than two faces, isolated vertices, or self-intersecting surfaces. These defects prevent 3D printing and rendering. Karaslice Pro detects non-manifold issues automatically and repairs them with one-click topology repair or targeted manual fixes in triangle edit mode.

Question 2

How do I repair a broken STL file online?

Accepted Answer

Upload your STL file to Karaslice Pro in your browser. The AI analysis engine detects holes, flipped normals, non-manifold edges, and other defects. Use Auto Repair for one-click fixing, or switch to triangle edit mode for precise manual control. No software installation required.

Question 3

What is the best free alternative to Meshmixer?

Accepted Answer

Karaslice Pro offers a 7-day free trial with capabilities that go beyond Meshmixer: AI-powered defect detection, three reconstruction modes, mesh splitting with cut planes, AI remesh and retexture, a modeling toolkit with boolean operations, and an AI mesh agent that repairs from natural language descriptions. It runs entirely in your browser.

Question 4

Can I repair OBJ, 3MF, and GLB files, not just STL?

Accepted Answer

Yes. Karaslice Pro supports STL, OBJ, 3MF, GLB, GLTF, FBX, PLY, and OFF file formats. All repair, analysis, and editing tools work across all supported formats.

Question 5

What does Karaslice Pro do that simple online repair tools don't?

Accepted Answer

Simple online tools offer one-click fixes for basic issues. Karaslice Pro is a full workbench: two-phase AI analysis, three reconstruction modes (voxel, shell, point cloud), a triangle editor with 6 selection modes, mesh splitting, AI remesh and retexture, a modeling toolkit with booleans, viewport measurements, and an AI agent you can talk to in plain English.

Question 6

How does AI mesh repair work?

Accepted Answer

Karaslice Pro uses a two-phase AI system. Phase 1 runs instant heuristic analysis to detect topological defects. Phase 2 uses Gemini AI to classify damage severity and recommend a repair strategy. The AI mesh agent can also execute complex repair sequences from natural language instructions like 'fill all holes and smooth the surface.'

Question 7

Is my file uploaded to a server?

Accepted Answer

Most processing runs locally in your browser using WebAssembly. Cloud features like AI remesh, retexture, and deep repair upload your mesh for server-side processing. Standard repairs, analysis, editing, and splitting all run client-side with no server upload.

Question 8

Can I go from mesh repair to ordering printed parts?

Accepted Answer

Yes. Karasawa Labs offers an integrated workflow: repair and prepare your mesh in Karaslice Pro, then use the quoting tool to select a material, get an AI-powered instant price, and order production-grade 3D printed parts shipped to your door.

Question 9

What file formats do you accept?

Accepted Answer

We accept STL, OBJ, GLB, GLTF, FBX, and 3MF files. You can also upload a ZIP archive containing multiple parts.

Question 10

What is the largest part you can print?

Accepted Answer

Our large-format printers can handle parts up to 1 meter × 1 meter × 1 meter. For larger projects, we segment the model into smaller, interlocking parts.

Question 11

What kind of reinforcement is needed?

Accepted Answer

For structural parts like a car body or monocoque, reinforcement is absolutely necessary. We recommend using a fiberglass or carbon fiber overlay to provide the required rigidity and durability. Our team can provide guidance on this process.

Question 12

What does 'show-ready' finish include?

Accepted Answer

A show-ready finish is our highest level of post-processing. It includes sanding all surfaces, filling any imperfections, and applying a high-quality primer, making the part ready for final painting. This option requires a manual quote.

Question 13

How long will my order take?

Accepted Answer

Lead time depends on the size and complexity of your order, the chosen material, and our current production queue. A standard lead time estimate is provided with your quote. Rush options are available.

Question 14

Can you help with the design process?

Accepted Answer

Yes! If you don't have 3D files yet, you can select the 'Request Design Help' option in our quote wizard. Fill out the intake form with as much detail as possible, and our engineering team will get in touch with you.

Frequently Asked Questions

Mesh Repair & Karaslice Pro

Manufacturing & Ordering

Still have questions?