Timemore Sculptor 078 grind settings.
Timemore's 64 mm flat-burr home grinder, dialled on a marked 0–10 collar in half-number steps.
The chart
Starting points, not targets. Each number carries a ± 0.5-dial step band because that is the honest resolution of this dial — land inside the band, then let taste move you.
| Brew method | 078 dial |
|---|---|
| Espresso anchor | 2 ± 0.5 |
| Moka pot | 3 ± 0.5 |
| AeroPress (short, fine) | 3.5 ± 0.5 |
| V60 / pour-over | 5 ± 0.5 |
| Kalita Wave | 5.5 ± 0.5 |
| Chemex / batch drip | 6 ± 0.5 |
| Clever / switch immersion | 7 ± 0.5 |
| French press anchor | 9.5 ± 0.5 |
| Cold brew | 10 (coarsest) |
One dial step on this grinder moves the grind by about 0.87 of a point on the 1–10 universal scale — so roughly 1 dial step is the smallest change worth making between brews.
A chart gets you a starting number and then stops. Coffee Aeye quotes every recipe in 078 dial to begin with — and when you rate the brew, it tells you which way to move and how many, on this dial.
€4.29 on Google PlayWhere these numbers come from
Two anchors, and interpolation between them. Espresso and French press are the only two bands that manufacturers and community charts actually document with any consistency, so those are the fixed points: espresso at 2 and French press at 9.5. Everything between is a straight line drawn through them, quantised to the dial step this dial actually resolves.
Absolute accuracy is not possible and this page will not claim it. Burr wear, per-unit zero points and assembly tolerances all shift where a number lands. What the two-anchor method gives you is the right shape — correct spacing between methods, correct direction of travel — which is what you need to dial in efficiently. The rest comes from calibration.
How this grinder works
A numbered collar reads 0 to 10 with printed graduations. The app quantises to half a number because that is the finest graduation you can reliably return to by eye. Finer resolution exists physically but you cannot repeat it, so the chart does not pretend you can.
Calibrating the chart to your own 078
If the chart runs consistently coarse or fine for you, do not nudge every row. Re-anchor it:
- Find your espresso mark — the dial step where a 1:2 shot in about 28 seconds actually happens on your machine. If you do not pull espresso, use the finest point where a moka pot does not choke.
- Find your French press mark — coarse enough that a four-minute steep is clean rather than muddy, and the plunger does not fight you.
- Enter both in Coffee Aeye. Replacing the two anchors corrects the zero point and the slope at once, and every method in between re-derives from your own two numbers.
This matters more on some grinders than others — it matters most anywhere the dial is stepless or the zero is set by hand.
Known quirks of the 078
Flat burrs want a running start.
Adjust while the motor is running, and always approach your target setting from the coarse side. Coming down from coarse loads the burrs consistently; coming up from fine leaves grounds packed in the gap and the setting reads differently next time.
Half a number is a real step.
On a 0–10 collar spanning the whole brewing range, 0.5 covers a meaningful chunk of extraction. Expect one half-step to move the cup more than two or three clicks would on a hand grinder.
Purge between coffees.
A 64 mm flat burr set holds enough retained grounds to muddy the first few grams of a new bag.
Moving the dial when a brew tastes wrong
The chart gets you into the right neighbourhood. Taste gets you the rest of the way, and the rule is the same on every grinder here:
| What you taste | What it means | Move |
|---|---|---|
| Sour, sharp, thin, empty finish | Under-extracted | Finer |
| Bitter, drying, harsh, ashy | Over-extracted | Coarser |
| Balanced but weak | Ratio, not grind | Hold |
| Balanced but overwhelming | Ratio, not grind | Hold |
On this dial, 1–2 dial steps is one meaningful step. Change one thing per brew. The full method is in the V60 dial-in guide.
Coffee Aeye holds this chart for all 18 supported grinders and closes the loop on it. Rate a brew and it converts the fault you tasted into a concrete move — how many dial on your 078, in your own dial numbers, not a vague "grind finer". Calibrate your two anchors once and every recipe in the app re-derives to your unit. Get it on Google Play — €4.29, one-time.
Convert a setting to another grinder
Settings do not transfer between grinders — click sizes, burr geometry and zero points all differ. The grinder converter maps a 078 setting onto any of the other 17 through the same universal scale this chart is built on.