Pic-to-Bin Open the app →

Phone photos → 3D-printed Gridfinity bin.

Photograph your tools on a printed template. The app traces each outline, packs them into the smallest Gridfinity bin that fits, and hands you a parametric Fusion 360 model ready to slice.

Launch the app →

You'll need

Step 0 · Install the Fusion 360 add-in (one-time)

Download the add-in, extract the ZIP, and copy two folders into your Fusion API directory. INSTALL.txt inside has the exact paths for Windows and macOS — under a minute of setup.

① Install the Fusion 360 add-in

Download the ZIP, extract it, then double-click the installer for your OS. Takes about 30 seconds. Fusion 360 must already be installed and opened at least once.

⬇ Download Fusion add-in (.zip)

  1. Extract pic-to-bin-fusion.zip.
  2. Double-click the installer for your OS:
    • Windows: install_windows.bat
    • macOS: install_macos.command
    It finds your Fusion API folder, copies the add-in into it, and prints the next steps.
  3. In Fusion 360, press Shift+S, switch to the Add-Ins tab, select pic_to_bin, and click Run. Check "Run on Startup" so the button shows up every session.
  4. In a Design workspace, the new button appears under Solid → Create → Gridfinity Pic-to-Bin.
Manual install (if the installer doesn't work)
  1. Open your Fusion 360 user-API folder (paste this into the File Explorer / Finder address bar — not a terminal):
    • Windows: %APPDATA%\Autodesk\Autodesk Fusion 360\API\AddIns
    • macOS: ~/Library/Application Support/Autodesk/Autodesk Fusion 360/API/AddIns
  2. Drag the ZIP's AddIns/pic_to_bin folder there so the final path ends with …/AddIns/pic_to_bin/pic_to_bin.py.
  3. Then follow the Fusion enable-on-startup step above.

Note: C:\…\AppData\Local\Autodesk\webdeploy\… is Fusion's bundled-add-ins folder and gets wiped on every Fusion update — user add-ins do not go there.

② Print the ArUco template

Print on plain paper at 100 % scale (no fit-to-page). One template is reusable — print once and photograph as many tools as you like. Pick the paper size you'll load; the green chroma-key variant helps SAM2 segment light or reflective tools.

⬇ Download template (PDF)

How it works

A typical run takes 5–10 minutes end to end.

  1. 1

    Print the template

    Plain paper, 100 % scale (no fit-to-page). The ArUco markers calibrate scale and correct camera perspective.

  2. 2
    Phone photo of a screwdriver on the printed template

    Photograph your tools

    Lay each tool on the template and snap a phone photo. One photo per tool. Overhead light, all 8 markers in frame when possible.

  3. 3

    Enter each tool's height

    Measure thickness with calipers or a ruler — that sets the pocket depth. The bin auto-sizes to the tallest tool.

  4. 4

    Inspect the trace

    The app overlays its trace on each photo. Adjust trace parameters or rerun a specific image if a detail looks off.

  5. 5

    Review the auto-packed layout

    Tools snap to the smallest Gridfinity bin that fits. Print the 1:1-scale PDF fit-test on paper and check the physical tools sit cleanly before committing to a 3D print.

  6. 6

    Download bin_config.json

    The bin recipe. Polygons, dimensions, and Gridfinity sizing the Fusion add-in reads in one click.

  7. 7

    Build the model in Fusion 360

    Click Solid → Create → Gridfinity Pic-to-Bin, pick the JSON. Fusion builds the parametric body, stacking lip, tool pockets, finger slots, and Gridfinity base — all in named timeline groups you can edit afterward.

  8. 8

    Export as STL (or mesh)

    Fusion's File → 3D Print writes an STL ready for any slicer. STEP works too if you want to remix the geometry.

  9. 9

    3D-print and drop in your tools

    Slice and print at your usual settings. ~2 mm of clearance is baked into each pocket so tools drop in cleanly without forcing.

Launch the app →