Export¶
Print export settings¶
On your first signed-in visit, first choose 3D printing or Scene export under Print export settings. For printing, explicitly choose a printer or manual build volume, print target, construction, doors and glazing. Only the 0.4 mm nozzle and 0.16 mm layer height are prefilled. Scene export asks only for quality. Apply saves the completed setup to your account. Missing choices or an attempt to close show “Please complete the print export settings.”. After a successful save, later sign-ins do not repeat setup; you can still change Settings. Already configured accounts keep their preferences.
Scene export¶
GLB contains the complete scene with project colours. Low Poly strongly reduces geometry and may simplify fine shapes. Compact represents surface relief with normal maps. Medium and Detailed produce progressively finer geometric relief. Low Poly, Compact, Medium and Detailed use Draco and WebP. Uncompressed has the same detail level as Detailed, without Draco and with lossless PNG textures. File size depends on the building and textures; there is no fixed megabyte cap. Printer and print scale do not reshape this scene.
| Quality | Appearance and file size |
|---|---|
| Low Poly | Simplified geometry and small textures for lightweight scenes. Requires Draco and WebP support. |
| Compact | Small file with compressed textures. Surface relief is represented by normal maps. Your target application must support Draco and WebP. |
| Medium | Geometric surface relief with a coarser grid and compact textures. Your target application must support Draco and WebP. |
| Detailed | Finer geometric relief and higher-resolution textures than Medium. Your target application must support Draco and WebP. |
| Uncompressed | Same detail level as Detailed, without Draco and with lossless PNG textures. Larger file; no Draco or WebP support required. |
3D printing¶
First select the printer manufacturer and then the model in Settings. Only models from that manufacturer are listed. Alternatively, use Manual to enter the build volume length, width and height in mm. Scale selection is enabled only when the build volume is complete.
Scale¶
In the scale section you choose how much the building is reduced for printing. The small 3D sketch shows the exterior model dimensions directly on dimension lines in millimetres. There is no additional building-dimensions text row below the selection columns. The explanation for “Export visible parts only” is available in the switch tooltip.
You first pick a theme; the matching scales then appear inside it as tiles — each with a short label for what it typically suits. One click sets the scale.
| Theme | matching scales |
|---|---|
| TableTop | Wargaming and tabletop miniatures (incl. 28 mm, 15 mm, 6 mm) |
| Model railway | Gauges from G down to Z (H0 = 1:87, N = 1:160) |
| Play worlds | Playmobil, LEGO, Siku, Hot Wheels |
| Dollhouse | the common dollhouse scales |
| Architecture | furniture, working and design drawings, urban-planning model |
| custom scale | any whole divisor up to 1:100, every fifth one above that up to 1:300, via slider and buttons |
At very small or very large scales, PrintHaus shows a note that you confirm once before downloading.
Which scale?
How to pick the right scale and what it means for printing is under Scales.
Print target¶
Settings → Print target offers Bambu Studio, OrcaSlicer, PrusaSlicer, Neutral 3MF, STL export, and STEP when enabled. Tiles are evenly spread across the panel. Unsupported slicers remain visible but disabled. Manual build volume supports neutral print formats and STEP when enabled. Nozzle and layer height occupy equal-width columns below and apply to supported slicer profiles.
Neutral 3MF contains named parts, millimetre units and their print orientation, with one file per build plate. It contains no slicer profiles or filament assignments. Select printer and material in your slicer and apply the settings in PrintHaus-3MF.md inside the ZIP; special support settings are not applied automatically.
STL export provides meshes in mm, grouped by part type and build plate. It uses the build volume from Settings. BM allows regular component splitting; MM keeps every part intact.
New smooth print meshes for STL and 3MF use an absolute linear tessellation tolerance setting of 0.05 mm at output size. This describes meshing relative to the CAD surface, not measured printer or material accuracy. Suitable existing native meshes are reused. Texture, preview and scene meshes retain their own methods.
Main layers and automatic BM surface steps are described under Printers and print beds.
File formats¶
Download depends on the print target: slicer project, neutral 3MF or grouped STL. Sign-in and export access are required. Progress is shown during generation. The ZIP still includes model.json and the input summary.
Further options¶
| Option | Description |
|---|---|
| Export only visible parts | Only the parts/floors shown in the preview go into the print files. model.json, views and the inputs list stay complete. |
| File-name prefix | Puts your own text in front of the file name (up to 60 characters; default "PrintHaus"). |
Windows & doors in the export¶
Choose BM, HM or MM using the model icons in Export. BM and HM are available through 1:99; from 1:100, MM is used. Selecting a model does not start a build-volume check. The actual export checks the calculated print parts against the selected build volume. MM parts are not split. If a part overhangs, PrintHaus shows its actual dimensions and asks whether to export unchanged.
Excluded areas defined by the selected printer profile must remain completely clear. If a placed print part intrudes into one, export stops without a download; confirming exceeded build-volume dimensions cannot override this restriction. Neutral 3MF and STL remain free of embedded slicer profiles; their placement still respects the excluded areas of the selected printer.
Under Print export settings, printing uses your construction, movable or fixed doors, and included or omitted panes. Glazing applies to windows and doors. None is preselected during initial setup. MM always uses fixed doors. BM and MM from 1:50 to 1:99 retain separate window and door inserts; fixed fillings have no movable hinges. Outside that MM range, closed fillings are fused to the wall. There is no additional door switch in Export.
With an active, applied Bomb Blast, doors are temporarily built as a fixed unit of frame and leaf for preview and export, even if movable doors are selected. The blast cuts this unit instead of automatically removing the whole door on contact. The saved door mobility setting stays unchanged. Hit garage doors continue to be removed completely.
Download¶
Download depends on the print target: slicer project, neutral 3MF or grouped STL. Sign-in and export access are required. Progress is shown during generation. The ZIP still includes model.json and the input summary.
Calculation and queue¶
Jobs can run in parallel when current available RAM, CPU and disk space permit. Past RAM peaks do not reserve memory for new jobs; an unmeasured class therefore does not have to run alone first. Website jobs have priority. Within the same priority, resource shortages preserve arrival order; smaller later jobs do not overtake. Running calculations are not interrupted. Waiting time does not count toward the calculation deadline. Account entitlements still apply.
Before export, PrintHaus checks the building input. A running preliminary check is already computation and is shown as a check even without percentage progress. Only a reported resource shortage receives the computing-capacity message; other waiting states are shown as waiting to start.
STEP¶
Choose STEP as a separate target next to STL. It appears only with the STEP add-on enabled. This starts the separate CAD export; ordinary print targets never add STEP files. There is no supplementary STEP switch. The API explicitly uses kind=step; include_step=true on print exports is rejected before calculation.
Visibility filters and print orientation¶
Hidden components and storeys can be exported without waiting for the detailed CAD preview. Only active cuts wait for its current geometric bounds. A preview error is shown beside the download button. A slab with textured crenellation sides keeps its underside on the print bed; the relief does not turn it over.
One shared 3MF project¶
For Bambu Studio and OrcaSlicer, the ZIP contains one shared 3MF project with named build plates. Component types retain their grouping and their respective per-object print settings. PrusaSlicer supports up to nine build plates per 3MF project; larger outputs are split into numbered projects containing at most nine plates each. Neutral 3MF continues to provide a separate file for each build plate.
MM: The entire sawtooth roof is one connected print piece without panes. Its L-shaped sections are fused at their joints. BM and HM retain the separate plug-together L modules. The glazing choice for other windows and doors still applies. For printing, the roof rests on its side sawtooth cross-section.
After export, model warnings appear as separate plain text. For an omitted arched opening, the message states the required height and actual remaining roof space. Unavoidably short print parts are also reported. Inspect the affected parts; a completed download does not clear the warning.
BM building shell with attachments¶
With BM and Building shell only, balcony and terrace slabs and canopies are printed with their respective façade; their material regions remain selectable in multicolour 3MF. Structural columns remain separate parts. Non-walkable flat roofs rest on their underside on the print bed. Existing door glazing receives a separate glass material in multicolour 3MF.