AI-Generated Miniatures for Tabletop and Resin Printing

Know the limits of the evidence

Resin guidance in the public record is thin for our purposes. The manufacturer sources with usable figures are Formlabs’ design specifications for the Form 3, its hollowing guide and its safety FAQ. Elegoo’s miniatures post is a general overview with no wall, layer-height or exposure figures, and we did not find official guidance from Chitubox, Lychee or Anycubic. Generator vendors publish resin-miniature guides, but they promote their own platforms, and we treat their settings as suggestions rather than specifications. We have not printed any miniatures. Everything on this page is about resin; FDM wall and overhang figures are a different subject and do not transfer.

Feature sizes from Formlabs

Formlabs’ design specifications page for the Form 3 and Form 3B lists these figures, developed with Clear Resin at 100 microns on the Form 3. Figures vary by printer and resin, so treat them as an example of the order of magnitude. The vendor guides below suggest finer layers than the 100 microns Formlabs used here, which is one more reason these do not transfer directly.

What this means for AI-generated sculpts: the generator’s mesh resolution and the printer’s limits are independent. A fine texture bump that exists in the render may be below 0.1 mm at your scale, and a thin sword blade that looks fine on screen may be thinner than the minimum wall. Scale the model to its print size before judging detail, then measure the thinnest weapon, antenna, spear or finger. Formlabs defines a wire as a feature at least twice as long as it is wide, so a spear shaft or antenna falls under the wire figures, not the wall figure. Closed geometry alone does not tell you any of this; see the print-readiness checks. Vendor figures can differ from Formlabs’: Meshy’s miniatures post gives about 0.5 mm as a resin minimum wall, against Formlabs’ 0.2 mm, without saying what printer or resin it means.

Decide the scale before you measure anything

Tabletop scale is a game convention, and vendors do not all describe it the same way. Meshy’s post says the 28 mm and 32 mm figures run “from the soles of the feet to the eyes”, so a “28 mm” figure stands about 30 to 32 mm, and a 32 mm heroic figure about 34 to 38 mm. Neural4D also measures foot to eye level, excluding the base. 3D AI Studio names 28 mm and 32 mm as “standard heroic scales” and 54 mm and 75 mm as display scales. Those are vendor statements; check how your game system or range measures before scaling. A 32 mm figure scaled down to 28 mm is 87.5 percent of its size, and everything thin on it shrinks by the same ratio.

The check that decides whether a generated detail will print is a single multiplication: feature size as a share of height, times printed height. The shares below are labeled examples, not measurements of any generated model, and the 0.1 mm and 0.2 mm limits are Formlabs’ Form 3 figures.

That is why a display-scale figure can keep detail that a tabletop one loses. A narrow shaft is stricter than the blade columns suggest, because the wire figures above rise with length. 3D AI Studio’s guide suggests style helps too, saying that “slightly exaggerated details” such as chunky armor and deep folds survive miniature scale better, the same logic as sculpted miniatures. Its guide also says thin spear shafts at 28 mm “can still print fragile regardless of the model quality”, and suggests thickening them.

Layer height: vendor advice only

Layer height is the setting vendors agree on most, though none cites a manufacturer’s figure for it. 3D AI Studio suggests 0.05 mm for tabletop figures and 0.03 mm for display pieces. PrintPal also names 0.05 mm, Neural4D names 0.03 or 0.05 mm, and Meshy gives 0.02 to 0.05 mm. Thinner layers lengthen the print: 3D AI Studio estimates 0.03 mm adds 65 percent to print time, with no stated method. Exposure settings are resin-specific, so take those from your resin’s own data sheet, and not from a generator’s blog.

Hollowing and drain holes

Large resin models use a lot of resin and are heavy. Formlabs’ hollowing guide describes its PreForm Hollow tool, which makes a shell of chosen wall thickness, and its Hole tool, with a recommendation to place one drain hole as close to the build platform as possible, add at least one more, and add others where cupping occurs (check Print Validation for cups). Its worked example, a hollowed model with a 2 mm wall at 0.1 mm layers on a Form 4 with White Resin V5, cut resin volume from 228.90 mL to 51.88 mL. That is one example, not a typical saving. The guide also says thin walls weaken large models and that hollow parts need fewer supports. The same page is undated.

The Form 3 specification gives 2.5 mm as the minimum drain hole for enclosed cavities. Search snippets suggest other Formlabs printers differ, but we did not read those pages, so check your printer. Whether to hollow a tabletop miniature at all depends on its size; 3D AI Studio’s guide says to “skip it under 50mm” and to hollow larger display pieces. That is a vendor view that cites no source, not a measured threshold. A third-party guide from 3D Printerly points the same way, saying miniatures save little resin when hollowed and that a 2.5 mm default wall in Lychee is too thick for them, suggesting 1.5 mm. Whichever you choose, Formlabs’ guidance above treats drain holes as part of hollowing, not an optional extra.

Supports and orientation

Support placement is where the vendor advice differs in detail. The Formlabs guide notes that hollow parts need fewer supports. 3D AI Studio suggests light supports with 0.3 mm tips on the back and underside, never the face, and leaning the figure back about 20 to 30 degrees so the face and chest are self-supporting. It attributes these to “community-standard settings for miniatures” and cites no manufacturer. Neural4D suggests 30 to 45 degrees instead. Treat the tip size and both angle ranges as starting points.

In your slicer, preview supports on faces, and orient so the faces and hands you care about do not touch them. Automatic supports are a first pass: 3D Printerly’s walkthrough of Lychee notes it reports how many supports were added and how many could not be placed, and flags islands, which are the parts of a layer with nothing beneath them. If the AI model has thin dangling parts (cloak edges, tails, weapons), expect those to need either support or thickening; fixing AI models for the slicer covers the thickening options. 3D AI Studio also suggests splitting oversized figures into 2 to 6 parts along natural anatomy.

Bases

Tabletop miniatures need a base the figure can stand on. Some generators offer an Add Base step before export; 3D AI Studio’s guide points to its Add Base tool, and Meshy’s print tools include Add Base, but we have not tested either. Meshy’s post lists 25 mm round bases for 28 mm figures and 32 mm rounds for 32 mm figures. Check what your game requires, and whether its height measure includes the base.

Handling resin safely

Resin needs care that a filament print does not, and generated miniatures are often a first resin project. Formlabs’ safety FAQ says gloves “should be worn whenever handling liquid resin or unwashed parts”, because resins are sensitizers in liquid form and repeated exposure may cause an allergy. If uncured resin touches your skin, wash with soap and water. Formlabs also says to “never pour resin down the sink”, and that disposal rules vary by region. An incompletely cured part “can still cause a reaction”, so washing and post-curing matter before you handle or paint a miniature.

Formlabs’ design guide adds a detail that applies directly to small figures: thin walls can absorb solvents such as IPA, and a long wash can deform them. Keep wash times short for spears and swords. Those are Formlabs’ statements about its own materials. For any other resin, read that resin’s safety data sheet and the printer maker’s guidance, since Formlabs itself says some printer and resin combinations need dedicated ventilation.

Choosing a generator for miniatures

Good candidates are tools that document STL or 3MF export and print-prep, as set out in the generator picks for printing. Creatures with complex limbs are a stress case; the creatures and miniatures protocol is the planned comparison. Meshy and 3D AI Studio both list print-oriented features; neither has been verified by us on resin. Vendor triangle presets are not resin detail guarantees: Sloyd’s docs list a 500k-triangle High Detail print preset and a 100k Standard preset, but a mesh can have many triangles and still carry a feature too thin to print.

Can you sell what you print?

Terms differ. Sloyd’s Terms restrict 3D printing to personal use unless you have a custom license, while its FAQ (marked last updated October 21, 2026) says paid plans can sell prints royalty-free; the two conflict, so get the answer in writing. Meshy’s free plan licenses output under CC BY 4.0 as long as you give “appropriate credit to Meshy”, with Meshy owning the output under its Terms, while paid plans own their output to the extent possible under applicable law. 3D AI Studio’s pricing page says assets are “private and fully owned by you” and names 3D printing among the uses, though we did not read its formal terms. For the full picture, see selling 3D prints of AI-generated models. Model-sharing sites may have their own AI rules; see uploading AI models to print sites for what is and is not confirmed. A generator’s license also does not address a prompt that copies an existing game’s characters.

What is unknown

Detail limits of AI-generated sculpts on actual resin prints, how AI meshes behave with auto-supports in common resin slicers, and any manufacturer figures beyond Formlabs. Run the print-readiness checklist before committing resin. Back to 3D printing.