The Gridfinity ecosystem has thousands of premade bins on Printables and Thingiverse. Generic holders for screwdrivers, hex keys, and batteries are everywhere. But the moment you need a cutout shaped exactly like your Knipex Cobra pliers or your Wera Kraftform screwdriver, you are on your own.
The standard approach is to open Fusion 360, import the Gridfinity base profile, sketch your tool outline by hand, extrude a pocket, and export. Even experienced CAD users spend 20 to 30 minutes on this. If you have never touched parametric CAD, the learning curve is steep and the result is often inaccurate.
The Photo-Based Alternative
Photo-based cutout generators use your phone camera to capture the exact tool outline. You place the tool on a sheet of paper, take a top-down photo, and upload it. Computer vision algorithms detect the tool boundary and convert it into a precise cutout inside a Gridfinity-compatible bin.
The resulting bin has the correct 42mm grid spacing, the standard Gridfinity base profile (which snaps into any baseplate), and a cavity that matches your specific tool within 0.5mm accuracy.
When Custom Cutouts Beat Generic Bins
Generic bins work for small items you dump in a pile (screws, nuts, cable ties). Custom cutouts are better when you need to see at a glance whether a tool is missing, when you want tools secured during transport, or when you are organizing an expensive tool set where each piece has a specific home.
Tradespeople use custom cutouts in their Gridfinity setups for exactly this reason. A plumber with 15 different fittings tools, an electrician with a specific set of strippers and crimpers, a mechanic with a curated wrench collection. Each tool gets a precision-fit slot that prevents rattling and makes inventory checks instant.
How to Make a Custom Gridfinity Cutout in 2 Minutes
Step 1: Photo Setup
White paper on a flat surface. Tool on the paper. Phone directly above, all four paper corners visible. That is the entire setup. The paper is your scale reference. No ruler, no calipers, no measurement needed.
Step 2: Upload and Auto-Trace
Open the TracetoForge editor and upload your photo. The app detects the paper, corrects perspective, and traces the tool outline automatically. You can adjust individual points if the trace picks up a shadow or misses a detail.
Step 3: Configure the Bin
Set the grid size (how many Gridfinity units wide and deep), cutout depth, and whether you want a finger notch for easy removal. You can place up to 5 tools in a single bin and position each one independently.
Step 4: Export and Print
Download as STL or 3MF. Slice with your preferred slicer. Print time for a typical 2x3 Gridfinity bin is 1 to 2 hours depending on depth and infill. PETG is recommended for durability; PLA works fine for indoor workshop use.
Custom Cutout Methods Compared
Fusion 360 gives maximum control but requires CAD skills and 20 or more minutes per insert. Gridfinity Rebuilt in OpenSCAD is parametric but only handles simple geometric shapes, not organic tool outlines. TinkerCAD is free and simple but extremely tedious for complex curves. Photo-based tools like TracetoForge sacrifice some manual control for speed and accuracy on real tool shapes.
For most workshop organization projects, the photo method produces better results faster because it captures the actual tool dimensions rather than approximating them from spec sheets or manual measurement.
Pro Tips for Perfect Cutouts
- Add 0.3 to 0.5mm clearance around the cutout so tools slide in and out easily. TracetoForge adds this automatically.
- Set cutout depth to about 60 to 70 percent of the tool thickness. You want the tool to sit low enough to stay put but high enough to grab easily.
- Use finger notches on pliers and wrenches. Without them, flat tools in deep pockets are hard to pull out.
- Print bins with 3 walls and 15 to 20 percent gyroid infill for a good balance of strength and print speed.
- Label each bin with the tool name using raised text or a label maker. When you have 20 identical-looking bins, labels save time.
Start Making Custom Cutouts
No CAD software to learn. No measurements to take. Just a phone, a piece of paper, and the TracetoForge editor. Your first export is free.