Meshy Edit: Fix One Part of an AI 3D Model Before You Print

Until last week, a maker who wanted to remove a hat from an AI-generated figurine had two bad choices: regenerate the whole model and lose the parts they liked, or spend what Meshy says can be hours fixing the mesh in Blender. Meshy Edit, available to all registered users since October 16 at 20 credits per edit, turns that into a one-sentence prompt on a selected region. For anyone printing AI-generated models, it moves the hardest step, correction, out of the modeling tool.

What Happened

As 3D Printing Industry reports, Meshy Edit changes one marked region of a 3D model from a text prompt while leaving the rest of the geometry untouched. It runs on a new model Meshy built in-house and trained specifically for local edits, and returns a new model in roughly a minute.

The workflow has two steps. A Lasso selects a whole component, including surfaces on its sides and back the user can’t see, and a Brush refines the boundary. The prompt can be as short as “remove the hat,” with up to five reference images. Every edit creates a new version and leaves the original in the user’s assets, so running the same edit several times and picking the best result is part of the intended workflow. From there, the model can go through Meshy’s printability check and be sent with one click to slicers including Bambu Studio, Snapmaker, Flash Studio and xTool Studio.

Why It Matters

Meshy has been building out each step from prompt to print: its engine went into Bambu Lab’s MakerWorld in March, it connected to Formlabs’ Form Now print-on-demand service a month later, and in July, alongside the nearly $400 million Series B Stack Archive covered in Meshy’s $1.5 billion valuation round, it added Auto Split for watertight, reassemblable parts. Local editing closes the remaining gap, where a model that was almost right still had to be regenerated or fixed by hand. As 3D Printing Industry puts it, generating a model is no longer the hard part; correcting it is.

The company is candid about where it works. Worn accessories such as hats and glasses, and swaps between similarly shaped objects, are the most consistent edits. Floating handheld objects and large shape changes are less predictable, and small unintended changes can appear near the edge of a selection.

What This Means for Makers

The limits matter more than the demo. Meshy Edit changes geometry only, not textures or colors, and a textured model comes back untextured. It works only on high-poly models generated with Meshy 6 or Meshy 7.1, including Ultra 2K output. Ultra 4K, low-poly, rigged or animated models, split results and uploaded files are not supported, which means it can’t yet be used on STL files from other sources. For multicolor printing, that likely means reassigning colors in the slicer after each edit.

Meshy’s own tips are practical: select slightly more than needed so the system can blend the edges, and use concrete shape words such as “thicker” or “round” rather than “make it look better.”

Source: 3D Printing Industry

Content created with AI assistance and reviewed for accuracy.