On Etsy · v1.0 · CAD-checked, not yet test cut
Kerf & fit calibration kit
Cut this first. Ten small parts tell you how your laser or plasma cuts slots, holes and kerf, so you know which 0.1 / 0.2 / 0.3 mm offset version of a Surkis Fab Files pack to cut, and which hole size suits your 16 mm dogs.
Includes a metric (mm) set and an imperial (inch) set with a 5/8 in hole gauge.
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What's in the kit
| Part | Size (mm) | What it checks |
|---|---|---|
| Slot coupons ×7 | 76–137 × 40 | Slots for 3, 4, 5, 6, 8, 10 and 12 mm plate, each at +0.0 / +0.1 / +0.2 / +0.3 / +0.4 |
| 16 mm hole gauge | 152 × 44 | Ø16.0 / 16.1 / 16.2 / 16.3 / 16.4 for fixture dogs and pins |
| Kerf comb | 132 × 47 | 16 gaps from 0.5 to 2.0 in 0.1 steps, 6.00 mm teeth |
| Fit result card | 120 × 80 | Etched fields: machine, material, thickness, kerf, best slot, best hole, pack offset, date |
Imperial set (inch)
- Nested sheet: all 9 parts on a 10.5 × 12.5 in blank
- 6 slot coupons for 1/8, 3/16, 1/4, 5/16, 3/8 and 1/2 in plate, at +.000 to +.016 in
- 5/8 in hole gauge: .625 / .629 / .633 / .637 / .641 in
- Inch kerf comb (.020 to .080 in) and fit result card
What's in the download
- Metric set: 11 DXF (nested sheet plus 10 parts), drawn in mm
- Imperial set: 10 DXF (nested sheet plus 9 parts), drawn in inches
- README (PDF and TXT) with every size, the layers and step-by-step use
- Layers: CUT (through-cut), ETCH (labels, mark only or delete), INFO (blank outline, turn off)
How to use it
- Cut the slot coupon for your plate thickness from the same plate, on the same machine and settings, with kerf compensation on.
- Push a clean, de-burred offcut of that plate into each slot, starting at +0.0.
- The best slot is the tightest one it goes into fully by hand or with a light mallet tap, without rocking.
- Pick your pack offset from the offset table and write it on the result card.
- Hang the set by the machine. Re-check if you change machine or cut settings.
Good to know
The DXF is drawn at nominal size. Your cutter applies kerf compensation as normal, so it works for laser and plasma.
A shop fit-test tool. Not a certified or calibrated measuring instrument, and not a structural part.
These files are CAD-checked, not yet test cut. Check fit on scrap first.
Now on Etsy
Get the files in the SurkisFabFiles shop
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