The TracetoForge editor turns a top-down photo of any hand tool into a precision-fit 3D printable insert. Upload your photo, the app auto-traces the outline using OpenCV edge detection, and you export a print-ready file in STL, 3MF, SVG, or DXF. The editor runs entirely in your browser — no installs, no uploads to a server, no CAD experience required. Average time from photo to printable file is under two minutes.
Place your tool on a clean sheet of white paper, A4 or US Letter size. The paper acts as both a contrasting background and a size reference, which the editor uses to calibrate real-world dimensions. Hold your phone directly above the tool and shoot straight down. Good even lighting matters more than a high-end camera. Avoid harsh shadows, glare on shiny tools, and tilted angles.
Drag and drop your photo into the editor or use the file picker. OpenCV processes the image client-side and detects the tool outline automatically. If the trace looks off, adjust the Sensitivity slider. Lower sensitivity (1-2) uses Otsu thresholding, which works well for high-contrast white-paper-and-dark-tool shots. Mid-range sensitivity (3-8) uses Canny edge detection. Higher sensitivity (9-10) blends adaptive thresholding with Canny for low-contrast or shadowed photos.
Enter the actual length of your tool, or use the paper reference for automatic scale calibration. This converts pixel measurements to millimeters so your printed insert fits the tool exactly. You can also adjust tolerance, cavity depth, and add a finger notch for easy tool removal.
Choose between three output modes depending on where the insert will live. Custom Tray creates a rectangular or oval tray for Milwaukee Packout, DeWalt ToughSystem, or any toolbox drawer with custom dimensions. Gridfinity Bin generates a standards-compliant 42mm-grid bin with the proper base profile. 3D Object exports just the extruded tool shape, useful for custom mounts, foam templates, or shadow boards.
The 3D preview shows your insert in real time. Drag tools around in the preview to reposition. When you are satisfied, pick your export format and download. Slice with Cura, PrusaSlicer, OrcaSlicer, Bambu Studio, or any other slicer.
The editor supports up to five tools per insert. Trace each tool from its own photo, then position them on a single tray. Each tool has independent settings: cavity depth, wall tolerance, finger notch, rotation, and bevel. This lets you build a single insert that holds an entire set of pliers, screwdrivers, or wrenches in one print.
STL: The universal 3D printing format. Works with every slicer and 3D printer. Best choice for single-material PETG or PLA prints.
3MF: Modern 3D printing format with support for multi-material, multi-color, and embedded slicing settings. Use for Bambu, Prusa XL, or any AMS-equipped printer if you want a two-tone insert.
SVG: Vector format for laser cutting. Use SVG to laser-cut foam inserts, plywood trays, or acrylic templates of the same shape you would otherwise 3D print.
DXF: CAD format for CNC routing. Use DXF when you want to mill a custom hardwood tool tray or aluminum insert on a CNC router.
TracetoForge generates inserts that fit Milwaukee Packout (full size, compact, low-profile), Gridfinity (42mm standard grid), DeWalt ToughSystem 2.0, DeWalt TSTAK, Ridgid Pro Gear 2.0, Makita MakTrak, Flex Stack Pack, Klein ModBox, Bosch L-Boxx, Festool Systainer, Makita MakPac, Kobalt, Husky, Craftsman, Stanley FatMax, Harbor Freight US General, and Snap-on. For toolbox drawers without a standard system, use Custom Tray mode and enter your own dimensions.
Tracing, previewing, and adjusting your insert are always free with no signup required. Exporting a file to download requires one credit. New accounts get three free export credits on signup. Additional credits are available in packs: 20 credits for $9.99 or 100 credits for $34.99. Credits never expire.
Yes. The editor runs in any modern mobile browser (Safari on iOS, Chrome on Android). Photo upload, tracing, and 3D preview all work on phones and tablets. Most users find it easier to take the photo on phone and do the export on desktop, but either works.
A standard smartphone camera is more than enough. Aim for the tool to fill at least half the frame, shoot from at least 12 inches above the object to minimize perspective distortion, and use diffused lighting. Auto-detection handles 90% of cases on the first try.
No. All image processing happens in your browser using OpenCV.js. Your photo never leaves your device unless you explicitly save the project to your account, in which case a small thumbnail is stored alongside the project settings.
PETG is the recommended choice for tool inserts. It survives temperatures up to 80°C, which makes it safe for vehicle toolboxes and hot garages. PLA prints faster and looks cleaner but warps above 60°C, so save it for indoor workshop use. ABS and ASA work for industrial applications but require an enclosed printer.
Yes. Sign in with email to save unlimited projects. Each project stores your tool dimensions, tracing settings, insert mode, and a thumbnail. Projects are private to your account.
Yes. You own the files you generate. There is no royalty or commercial-use restriction on your exports.
For deeper walkthroughs, see the Getting Started Guide, or browse practical guides on the TracetoForge blog: