FDM print-readiness check

Know it'll print before you hit slice

Buildable scans your model for overhangs and thin walls, explains what to fix (or fixes it for you), and matches you to the right filament for the part you're printing.

Drop an STL or 3MF here

or click to browse · STEP viewing coming soon

Upload an STL or 3MF to run the overhang, thin-wall, bridge, and stability check.

What do you need?

Strength (load bearing) 6

Flexibility 2

Heat resistance 3

Toughness / impact 5

Needs outdoor / UV resistance

Comfortable with

Best matches

A field guide to common FDM print-quality problems — condensed from Bambu Lab's print-quality wiki. Four of these Buildable can actually catch before you slice; the rest come from your slicer, printer, or filament, so we can only flag you're headed toward one.

Buildable checks these automatically

Overhangs✓ Checked

A steep unsupported face has nothing beneath each new layer to bond to, so it droops or sags as it prints. Buildable flags any face past your overhang-angle threshold and highlights it amber in the 3D view; one-click reorientation searches for an angle that removes the overhang entirely.

Bridging✓ Checked

A flat span with no support underneath it sags mid-air or snaps as the nozzle tries to print straight across the gap. Buildable clusters flat, elevated, unsupported surface and flags any span longer than about 8mm, highlighted violet in the 3D view.

Thin walls✓ Checked

A wall thinner than your nozzle's two-perimeter minimum comes out fused into a single weak line, or gets skipped by the slicer entirely. Buildable measures local wall thickness across the mesh and flags anything under your minimum, highlighted pink in the 3D view.

Tip-over / poor bed contact✓ Checked

A tall model on a small footprint has less bed adhesion holding it down, and a higher center of gravity for the print head or cooling fans to knock loose. Buildable compares height to footprint and warns past roughly a 4:1 ratio.

Print-process issues to watch for

First layer not stickingSlicer / printer

Usually bed leveling, temperature, or a dirty plate. Enable a brim, re-level the bed, and make sure the "plate type" selected in your slicer matches the plate you actually have installed.

Warping or lifting cornersSlicer / printer

Shrinkage as the print cools pulls its corners off the plate — worse on large flat bases, high infill, and high-shrink filaments like ABS, ASA, PC, and PA. Raise bed temperature, close any enclosure doors, and watch out for large, high-infill, flat-bottomed models.

Extruder or nozzle clogsSlicer / printer

Filament jams from excess chamber heat softening it in the gears, or debris building up inside the nozzle over time. Keep chamber temperature in range for your filament and clean the nozzle periodically, especially after abrasive (carbon/glass-filled) filaments.

Stringing, oozing & nozzle stickingSlicer / printer

Damp filament, too-high nozzle temperature, or under-tuned retraction lets melted plastic ooze out and trail between parts of the print. Dry your filament before printing, and tune retraction distance/speed in your slicer.

Under-extrusionSlicer / printer

Not enough filament reaching the nozzle — a partial clog, bad flow-rate calibration, or filament that can't melt fast enough at your chosen speed. Run a flow-rate calibration and reduce print speed for filaments prone to this.

Gloss/pattern inconsistenciesSlicer / printer

Uneven sheen, "belt pattern" banding, or top-layer gaps mostly come from speed or temperature changing mid-print, or mechanical resonance from the belts. Keep outer-wall speed consistent and double-check flow-rate calibration.

Interlayer crackingSlicer / material

Weak bonding between layers from printing too fast or too cold, or from excessive cooling — common on ABS, ASA, PC, and carbon-fiber-filled filaments. The Materials tab flags heat-resistant, high-shrink materials so you go in expecting to tune cooling and speed.

SeamsSlicer

A normal artifact where each layer's outline starts and stops — more visible on smooth, curved surfaces. Try more wall loops, or "Spiral vase" mode in your slicer for simple, single-wall parts.