Layeria: STL STEP IFC Viewer

Layeria is a 3D and BIM viewer for Android. It opens STL, STEP, 3MF, OBJ and PLY files and IFC building models from Files, Google Drive or Gmail, shows the size in millimeters, the volume and an estimate of the filament weight, and checks for holes before you print.

Use it to check a downloaded model before printing, a part's size away from your PC, or an IFC building model on site or in a meeting. It suits 3D printing hobbyists, makers, people in architecture, building services and construction, and students.

OPEN
• STL (binary and text), 3MF, OBJ and PLY
• STEP and IGES CAD files (.step, .stp, .iges, .igs), free to open and converted on your device
• IFC building models (.ifc, .ifczip; IFC2x3, IFC4, IFC4.3), free to open and read on your device
• Recent files with a small picture of each model
• A sample model to try right away

VIEW
• Turn, zoom and move with one or two fingers
• Front, rear, left, right, top, bottom and iso views, plus orthographic view
• Shaded, wireframe or both
• Model colors and backgrounds, including dark ones, all free
• Floor grid, auto-rotate, and an up-axis switch (Z / Y) for models lying on their side

IFC (BIM)
• Pick a storey to see only that floor
• Show or hide walls, slabs, windows and other element types
• Tap an element to see its type, name, GlobalId, storey and property sets; copy the GlobalId
• Colors as saved in the file
• Size on X, Y and Z in millimeters, with a unit picker when the file leaves its unit open
• Section cuts and two-point measuring work on IFC models too (Pro)

INFO
• Size on X, Y and Z, triangle count, volume and surface area
• Filament weight and length for PLA, PETG, ABS and TPU, with the infill you choose

CHECK BEFORE YOU PRINT
• Finds open edges (holes), non-manifold edges and zero-area triangles
• Marks the edges worth fixing on the model in red and yellow

SHARE
• Send a picture of the model with its name and size

FREE AND PRO
Free to download. Opening, viewing, size and weight, and the print check are free without limit. The free version keeps the 10 most recent files and shows a small banner ad.
Pro is a one-time purchase, not a subscription: section cuts on X, Y and Z, measuring between two points, comparing several files side by side, unlimited recent files, and no ads.
Remove ads is a separate one-time purchase.

FAQ
How do I open an STL file on Android?
Tap the file in your file manager, Google Drive or Gmail and choose Layeria.

How do I open a STEP file on Android?
Tap the .step or .stp file in Files, Google Drive or Gmail and choose Layeria. It is converted on your device, so no account or upload is needed; large files can take a minute.

How do I open an IFC file on Android?
Tap the .ifc file in Files, Google Drive or Gmail and choose Layeria. It is read on your device, so no account or upload is needed. Then pick a storey or tap an element to see its properties.

Can I open 3MF files from my slicer?
Yes, including files with several objects.

How much filament will my print use?
Open Info. Weight and length come from the model's volume, a 0.8 mm outer wall and your chosen infill, for 1.75 mm filament.

Why does my model look like it is lying down?
Some programs save Y as up and others Z. Tap the up axis button in View to switch.

Do my files leave my device?
They stay on your device unless you share them. No account or sign-in is used.

LIMITATIONS
• Layeria views and measures models. It does not edit, repair or slice them, make drawings or quantity takeoffs, or export IFC
• STL, 3MF, STEP and similar files appear in one color you choose. Colors saved in the file are shown for IFC. Textures are not shown
• FBX, GLB and other formats do not open
• Weight and length are estimates. Your slicer gives the exact figure for your settings
• Very large files can be too big for phones with little memory
• Files are not synced between devices

If something does not work, write to [email protected] any time.