The catch
MiiCoffee DF64V Gen 3 Variable Speed Grinder
Variable speed is one more setting you have to record and understand.
Side by side
MiiCoffee DF64V Gen 3 vs TIMEMORE Sculptor 078S: Bigger burrs on the 078S leave its stock bean load unchanged
Quick verdict
If its 64 mm burr options and bellows routine already suit you, the DF64V Gen 3 is the more straightforward choice. The Sculptor 078S is the one to pick specifically for its 78 mm platform and rotary knocker. Bigger burrs do not mean a larger stock bean load.
Before you buy
Why, and what it costs you
A 40 g dose still takes two fills on the bigger machine
A 40 g recipe means a refill with either standard hopper.
Where this comes from
The stock capacities of 30 g or approximately 30 g are exceeded by 40 g.
The catch
TIMEMORE Sculptor 078S
The stock hopper stays at around 30 g even with the larger burrs.
MiiCoffee DF64V Gen 3 Variable Speed Grinder
- Why pick it
- The documented 64 mm SSP upgrade route is what you want.
- A removable magnetic chute and bellows are your preference.
- The catch
- Variable speed is one more setting you have to record and understand.
TIMEMORE Sculptor 078S
- Why pick it
- The 78 mm espresso-capable Sculptor is specifically what you want.
- Rotary chute clearing beats bellows for you.
- The catch
- The stock hopper stays at around 30 g even with the larger burrs.
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What this page compares
Weighing DF64V Gen 3 against Sculptor 078S? Burr size, single-dose capacity, cleanup and basket fit are worth comparing before you pay for the larger platform.
If its 64 mm burr options and bellows routine already suit you, the DF64V Gen 3 is the more straightforward choice. The Sculptor 078S is the one to pick specifically for its 78 mm platform and rotary knocker. Bigger burrs do not mean a larger stock bean load.
Which one fits
Pick the situations that sound like you
I'm after a 78 mm espresso platform
The 078S comes with 78 mm espresso-capable flat burrs. Since the DF64V uses 64 mm burrs, it cannot satisfy that specific platform preference.
- MiiCoffee DF64V Gen 3 Variable Speed Grinder
- Not suitable
- TIMEMORE Sculptor 078S
- Better fit
I plan to swap in a supported 64 mm burr
Optional SSP burr choices are documented for the DF64V. The 078S has a larger 78 mm platform, which a 64 mm replacement cannot be fitted to.
- MiiCoffee DF64V Gen 3 Variable Speed Grinder
- Better fit
- TIMEMORE Sculptor 078S
- Not suitable
I need a 40 g filter dose in one fill
Each stock hopper is rated at about 30 g. A larger burr diameter on the 078S does not let its hopper hold a 40 g recipe.
- MiiCoffee DF64V Gen 3 Variable Speed Grinder
- Caution
- TIMEMORE Sculptor 078S
- Caution
I switch beans every day
You can weigh individual doses and change beans between drinks on either. The real choice is the DF64V's bellows or the 078S's rotary knocker.
- MiiCoffee DF64V Gen 3 Variable Speed Grinder
- Good
- TIMEMORE Sculptor 078S
- Good
In practice
Differences you will notice
A 40 g dose still takes two fills on the bigger machine
A 40 g recipe means a refill with either standard hopper.
How we worked this out
The stock capacities of 30 g or approximately 30 g are exceeded by 40 g.
Burr diameter goes up 21.9%
Read that number as a comparison of size and not a forecast of better coffee.
How we worked this out
(78 ÷ 64 - 1) × 100 = 21.875%. Neither burr cutting area nor tooth geometry is calculated.
Suitability changes with the S suffix
For espresso, buying an 078 is not the same as buying an 078S.
How we worked this out
TIMEMORE sets the stepped 078 apart from the stepless, espresso-capable 078S.
Option A
MiiCoffee, DF64V Gen 3
DF64V Gen 3 Variable Speed Grinder
For people who like testing extraction variables, this compact 64 mm flat-burr single doser adds a brushless motor and broad speed control.
- Best for
- Advanced home baristas who plan to treat motor speed as part of developing a recipe
Facts we checked
- Red Titanium flat burrs, 64 mm
- Adjustable speed, 800 to 1800 rpm
- Brushless motor rated 400-watt
- Stepless adjustment with a plasma ionizer
Option B
TIMEMORE, 078S
Sculptor 078S
With larger burrs, this Sculptor follows the same small-dose routine as the 064S. The reason to buy it is the 78 mm platform. The stock hopper is no bigger.
- Best for
- A bigger flat-burr platform for both espresso and filter
Facts we checked
- Espresso-capable flat burrs, 78 mm.
- A 400 W brushless motor and stepless adjustment.
- Standard hopper of around 30 g.
- Catch cup of approximately 57 mm, plus a rotary knocker.
- It shuts off automatically after 60 seconds.
Spec by spec
Where they really differ
| Spec | MiiCoffee DF64V Gen 3 Variable Speed Grinder | TIMEMORE Sculptor 078S | In practice |
|---|---|---|---|
| Flat-burr diameter | 64 mm | 78 mm | At 21.9% larger, the 078S diameter is a matter of geometry and not a result for taste or speed. |
| Stock bean load | 30 g | Around 30 g | A 40 g batch still has to be split, however large the burrs. |
| Motor rating | 400 W brushless | 400 W brushless | The same rated watts do not show equal torque, energy use or grinding speed. |
| Chute clearing | Bellows and magnetic chute | Rotary knocker | Next to speculative flavor claims, the daily cleanup motion is the more concrete difference. |
| Auto-off behavior | Manual stop | 60-second timed stop | The stop on the 078S is neither a bean-empty sensor nor a weight target. |
Trade-offs
What each pick costs you
With MiiCoffee DF64V Gen 3 Variable Speed Grinder
- Fixed-speed grinders skip the complexity that a brushless variable-speed motor brings.
With TIMEMORE Sculptor 078S
- A 078 without the S is a different grinder, aimed at filter.
Decision guide
How to decide
When its 64 mm burr options and bellows routine already suit you, go with the simpler choice, the DF64V Gen 3. Go with the Sculptor 078S specifically for its 78 mm platform and rotary knocker, because larger burrs do not give you a larger stock bean load.
Spend on the platform you will use
A bigger burr number does not, on its own, justify replacing a working setup. The 078S makes sense when you have deliberately chosen its burr platform and want the knocker-based workflow that comes with it.
Watts will not tell you the results
Both current models list 400 W motors. That takes a misleading spec-sheet argument off the table, though it does not make their motor control, burr geometry or output equivalent.
Never lose sight of the exact model
A different generation may be what an older DF64V listing describes. A listing that shortens the name to Sculptor 078 may also be the filter-only version. Those distinctions count for more than color or accessory bundles.
What this page can’t tell you
- The specifications cover the listed version only. They say nothing about a taste ranking or about retention measured in your kitchen.
- Before you buy, check the exact model, the seller, the accessories included and, where it applies, the US electrical version.
By the numbers
What the data shows
What we found across the premium coffee grinders we compare, plus the checked facts behind each finding.
How many fit
Only 3 of the 39 models checked meet every need here: “Accurate tuning for espresso”, “A routine of measured single doses”, and “Deeper tuning through motor speed control”.
3 models fit, out of 39 checkedThe gap in numbers
TIMEMORE Sculptor 078S lists 78 mm for listed burr diameter, 22% more than the 64 mm on MiiCoffee DF64V Gen 3 Variable Speed Grinder.
- MiiCoffee DF64V Gen 3 Variable Speed Grinder
- 64 mm
- TIMEMORE Sculptor 078S
- 78 mm
- Models with this figure
- 28 of 39
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “Accurate tuning for espresso”, “A routine of measured single doses”, and “Deeper tuning through motor speed control”. A need with no documented match is not counted.
How we calculatedA grinder counts here only if it publishes its burr diameter as a number. Diameter matters no more than burr geometry and alignment do. For context, 28 of 39 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| MiiCoffee DF64V Gen 3 Variable Speed Grinder |
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| |
| TIMEMORE Sculptor 078S |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
MiiCoffee DF64V Gen 3 Variable Speed Grinder
The documented 64 mm SSP upgrade route is what you want.
See price & reviews on AmazonTIMEMORE Sculptor 078S
The 78 mm espresso-capable Sculptor is specifically what you want.
See price & reviews on AmazonEach link opens in a new tab.
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