Gridfinity DeWalt TSTAK Inserts: Custom Drawer Organizers From a Single Photo
The DeWalt TSTAK Problem Nobody Talks About
The DeWalt TSTAK system is genuinely great. Stackable, locking, IP54-rated — it goes from the job site to the van to the garage without complaint. But crack open one of those drawers after a few weeks and you will find the same thing every TSTAK owner finds: every tool has migrated to the front-left corner, the foam inserts that came with the kit are already falling apart, and half your bits have disappeared through a gap you did not know existed.
The TSTAK drawer is a wide-open 380mm x 265mm tray with nothing to keep your tools in place. Generic Gridfinity inserts from Printables get you closer — but a universal wrench tray designed for someone else's wrench set almost certainly does not match yours. This guide covers how to get Gridfinity DeWalt TSTAK inserts that actually fit your specific tools, using a single photo from your phone.
Why Generic TSTAK Gridfinity STLs Fall Short
There are solid TSTAK Gridfinity baseplates on Printables and Thingiverse — notably the 4-piece PETG grid by KyleMc that tiles to fill the deep drawer. The baseplate problem is mostly solved. The insert problem is not.
A universal wrench tray holds wrenches in slots spaced for a specific set. If your Craftsman combination set runs slightly thicker than a Tekton set, the tool either rattles or will not seat. A socket organizer designed around a 3/8-inch drive rail might not clear your 1/2-inch drive extensions. And if you have an oddball tool — a custom-handle screwdriver, a specialty pliers, a crimper with a weird profile — there simply is no off-the-shelf Gridfinity insert for it.
That is the gap Gridfinity DeWalt TSTAK inserts from a photo are designed to close: precise fits for your tools, not someone else's approximation of them.
What Goes Inside a TSTAK Drawer
Before diving into the photo workflow, it helps to know your drawer dimensions. The TSTAK II (shallow single drawer) has an internal tray roughly 380mm wide x 265mm deep x 55mm tall. The TSTAK VI deep drawer runs about 380mm x 265mm x 150mm. These are not official DeWalt specs — measure yours before printing a baseplate, since tolerances vary and lids can interfere with tall inserts by a few millimeters.
A standard Gridfinity unit is 42mm x 42mm with a 7mm-tall base module. For a TSTAK II drawer, that works out to roughly a 9x6 grid (378mm x 252mm), leaving a small margin on each side. Most people print the 4-piece baseplate in PETG (better impact resistance than PLA for a drawer that gets slammed) and then print individual inserts in whatever color-codes their workflow.
The Photo Approach: How It Works
The fastest way to get a precision-fit Gridfinity insert for any TSTAK tool is to photograph it against a known reference — a standard US Letter sheet of paper works perfectly. The photo gives an AI tool the real-world scale it needs to trace the outline, calculate the exact pocket dimensions, and generate a 3MF file ready to send to your slicer.
Here is the full workflow:
- Lay a US Letter or A4 sheet of paper on a flat surface in good light — natural daylight or a bright overhead LED, no harsh shadows.
- Place the tool flat on the paper in its natural resting position. For wrenches, lay them jaw-up. For screwdrivers, lay them handle-to-tip across the long axis of the page.
- Shoot straight down from about 50-60cm. Keep the phone parallel to the surface — any tilt will distort the trace.
- Upload to GridPilot. The AI uses the paper edges as a calibration reference, traces the tool outline, adds a configurable clearance (0.3mm works well for most hand tools), and exports a Gridfinity-compatible 3MF at the correct unit dimensions.
- Load the 3MF into Bambu Studio, PrusaSlicer, or OrcaSlicer. Slice at 0.2mm layers, 15% infill, 3 perimeters. Print time for a typical wrench insert runs 45-90 minutes depending on size.
The output snaps into any standard Gridfinity baseplate — including the TSTAK-fitted tiles — and the tool seats exactly as it did when you photographed it.
Tools That Photograph Well in TSTAK Setups
Most hand tools photograph cleanly. A few categories worth calling out:
Combination wrenches are ideal candidates — lay them in a fan arrangement on the paper (slightly overlapping is fine, the AI separates them) and you can capture a full metric or SAE set in one shot. The generated insert spaces each slot to match that specific wrench width at the box end.
Pliers and cutters do well when photographed fully open at roughly 30-45 degrees. This captures the widest point of the jaw and ensures the pocket accommodates the tool in its resting-open position rather than cutting off the hinge knuckle.
Screwdrivers are straightforward — photograph them handle-to-tip. The generated pocket holds them by the handle with the blade pointing up, which is how most people want to grab them from a drawer.
Odd-shaped tools — oscillating tool accessories, Dremel bits in a case, random adapters — are where the photo workflow really earns its keep. If it has a physical outline, it can be photographed and traced into a Gridfinity pocket. No searching Printables for a model that may not exist.
Printing Tips for TSTAK Inserts
TSTAK drawers see real use. A few print choices extend insert life significantly. PETG outperforms PLA for tool drawers — it handles the cold snap of a winter job site and will not crack if a heavy wrench lands in the pocket at an angle. Consider printing the baseplate in black PETG (less visible dust and oil) and the inserts in a bright color (easier to see at a glance whether a slot is occupied).
Add 3-4 heat-set magnets to the bottom of each insert if your TSTAK baseplate has magnet holes — this keeps inserts from shifting when the drawer opens fast. If you are using a screw-mount baseplate variant, the inserts stay put via the Gridfinity lip geometry alone, which is generally sufficient for horizontal drawer use.
One detail that catches people: the TSTAK VI deep drawer has a full 150mm of vertical space, but a standard Gridfinity bin is only 42mm tall per unit. You can stack two layers of bins in the deep drawer, or print taller single-unit inserts for tools like tin snips or long-jaw pliers that do not work in a shallow pocket.
Why This Beats Foam Inserts
Kaizen foam is popular and it works, but it has real limits in a working TSTAK setup. Foam degrades with oil and solvent contact, the cut edges fray over time, and if your tool set changes, the foam insert is usually garbage. A Gridfinity tray can be reprinted for a new tool in under two hours. If you get a new ratchet, photograph it, generate an insert, print it overnight, and it is ready in the morning. The baseplate stays; only the insert changes.
Foam also cannot give you vertical organization. A Gridfinity insert in a TSTAK VI deep drawer can stand tools upright in labeled slots, giving you twice the tool count in the same footprint. That matters when you are trying to fit a full hand-tool set into two TSTAK VI drawers instead of four.
Get Your First Insert in the Next Hour
Pick one tool from your TSTAK drawer that currently slides around the most. Lay it on a sheet of paper, take one overhead photo, and upload it to GridPilot. You will have a ready-to-print 3MF in about two minutes. Slice it, start the print, and your TSTAK will actually be organized by tonight.