A first wholesale hardware assortment is a test plan in a box, not a gift of colours. You are trying to learn whether a core, tank, and cap process survive your oil. Oil-first hardware selection should be boring, labelled, and small.
Pretty mixed colourways waste oil. One body, one oil lot, written settings, then you earn the colourway.
What You’ll Learn
Build a kit around one oil lot, one heater family, and a written voltage. Label fill mass and cap time. Pass leak and flavour before you order lasers and cartons.
What belongs in a first evaluation kit
Empty hardware you will actually fill. The oil lot you will actually sell. The battery you will actually ship or recommend. Nothing else is required.
Vision Box style kits exist for structured evaluation. If you use one, still write your oil on the card. Their demo oil is not your SKU.
How many units
Enough to fill, cap, hold 24 hours, and still have units to smoke-test. Twelve is a look. A hundred starts to be a process. Two hundred is a pilot.
If the supplier only sends twelve, treat it as a look. Do not forecast annual volume from twelve.
What to leave off
Five colourways. Three mouthpiece styles. A laser you have not approved. Those belong on branded kit after first kit passes.
How to label so the test is repeatable
If the card is blank, the test did not happen.
- Oil lot and family.
- Fill mass and temperature.
- Cap delay.
- Battery SKU and step.
- Date and operator initials.
Photos
Photograph pins and mouthpieces at 24 hours. Memories of ‘it was fine’ are not evidence.
Photograph the kit orientation in the fridge or cabinet. If someone laid it down overnight, the test is void.
Blind flavour
If you are comparing two cores, hide the names. People vote for the expensive one when they can see the logo.
Pass/fail before anyone talks about brand
Fail on mouthpiece oil, pin oil, burnt first hit at the lowest step, or leftover oil that is absurd. Pass only if the jar and the cart still tell the same story at half tank.
| Check | Pass | Fail |
|---|---|---|
| 24 h upright | Dry mouthpiece, dry pin | Wet either |
| First hits | Jar-like aroma, low volts | Burnt or harsh |
| End of tank | Reasonable leftover | A third still trapped |
One weeper versus a pattern
One weeper can be a missed cap. Three is a process or a lot. Log both. Do not average them into ‘some leaking is normal’ unless you have actually decided that number.
Normal is a rate you chose. It is not a fog.
Do not pass on looks
A slim body on a lightbox is not a pass. If marketing needs a hero shot, shoot the passed unit.
The branded kit is where colour and laser live
Once the core passes, mark the body and freeze the carton. Doing this on first kit is how you laser a mouthpiece you then reject.
CR and pack
If the market needs child-resistant packs, introduce them on branded kit or in parallel on empty units. Do not mix a new pouch foam with a new core in the same 24-hour leak test unless you like confounded results.
Change one variable per kit when you can.
Oil change
A new oil lot is a new kit. Viscosity shifts. The core that passed winter distillate can fail spring live resin.
Who should be in the room
Operations, not only brand. Someone who fills. Someone who owns tickets. A photographer is optional. A person with a scale is not.
Sales
Sales can watch. Sales should not declare a pass because a buyer liked the colour. Buyers do not see the 24-hour pin.
If a buyer must be impressed, show the card. Serious buyers like cards.
Supplier
A supplier who wants to fill with their demo oil is selling a booth. A supplier who wants your lot number is selling hardware.
Request a first-order kit that looks like work
Tell 3DevicesCCELL the oil, volume, and whether this is first kit or branded kit. Ask for unmarked units if you are still on first kit.
Minimum brief
- Oil family and lot if you have it.
- Fill volume target.
- 510, pod, or all-in-one.
- Battery you will pair, if any.
Related
Oil-first selection is the map. The kit is the field test.
What to do with failures
Quarantine. Photograph. Do not ‘mix them into staff use’ so they vanish. Failed units are data. Staff-use is how data walks out the door.
If the failure is process, fix the clock and rerun the same hardware. If the failure is hardware, stop and change SKU. Rerunning a bad core to be polite wastes oil.
Telling the supplier
Send path (mouthpiece vs pin), fill mass, cap time, and photos. Do not send ‘your carts suck’. They cannot act on that.
Good suppliers already know this format. If they argue without asking for the card, believe that too.
Limitation
A first kit does not replace a production capability study. It stops you from buying 20,000 of a core that dies on day one. That is enough for first kit.
Field notes: calendar pressure from brand launches
Launch dates will try to skip first kit. They will call it agile. It is just untested hardware with a party.
Move the party before you skip the 24-hour leak check.
Minimum freeze
You can launch on a passed unmarked unit. You cannot honestly launch on a unit still in the filler’s pocket.
If the date is immovable, shrink the SKU count, do not shrink the test.
What we still refuse to fake
We will not backdate a pass. If it failed Thursday, it failed.
A quiet passed kit is a better launch asset than a loud untested one.
- First kit before colour.
- First kit before laser.
- First kit before 20,000 units.
- Write the date of the pass on the launch checklist.
Visitors who want to take a unit home
A visitor pocketing an unmarked first-kit unit is a lost data point and sometimes a filled oil walking into an unlicensed space.
Sign-out
If units leave the building, they are signed out empty or not at all. Filled first-kit units stay in the cage.
If a founder takes one anyway, write it as lost. Do not pretend the n is still 80.
Cages
A lockable cabinet is not drama. It is how you keep n honest.
Label the cabinet with the kit number and date. Mystery cabinets become snack drawers.
Spreadsheet tabs that multiply
One tab per kit. If someone makes a dashboard with seven blends, they will type the wrong leak rate into a board pack.
Source of truth
The card on the kit is the source. The sheet is a copy. If they disagree, believe the card and photograph it.
Dashboards are for passed kits, not for first kit still in process.
Versioning
Filename with date and kit ID. ‘final_final_kit’ is how you quote last month’s fail as a pass.
When in doubt, reprint the card from the photo.
More first-order operating notes
Guest badges
Guests on the kit floor sign a one-pager: no pockets, no filled souvenirs. It feels corporate. It keeps n honest.
Honesty has a badge.
Holiday weeks
Kits started on a Thursday before a holiday will be forgotten on a warm shelf. Do not start them.
Start on a week you will be present for the 24-hour check.
Shared fridges
A kit in the staff fridge will be moved by someone looking for milk. Dedicated shelf or no fridge.
Milk always wins.
Duplicate cards
Two cards in one kit is how the wrong voltage gets written. One card, one clip, one owner.
Owners can go on holiday. Then the deputy owns the clip.
Photo lighting
Photograph leaks in the same corner every time. Mixed lighting starts arguments about ‘how wet’.
Same corner. Same lamp.
Vendor visits
Vendors who rearrange the kit to look nicer have voided it. Tell them no before they arrive.
Pretty kits are not data.
Scale calibration
A scale that has not been checked in a year is a storyteller. Check it the morning of first kit.
Stories are not masses.
Stop rules
Write the stop rule on the card: three weepers and we stop. If you decide later, you will not stop.
Later is how 200 bad units get filled.
Kit edge cases on the floor
Two oils, one kit
If someone sneaks a second oil onto first kit ‘for efficiency’, void the kit.
Efficiency is confound.
Borrowing units
Sales borrowing three units for a lunch demo voids n. Chain them or say no.
Lunch demos are not first kit.
Sticky notes as cards
Sticky notes fall off. Use a clipped card.
The floor eats sticky notes.
Fridge power cuts
A power cut overnight is a new temperature cycle. Log it or void.
Unlogged cycles are mysteries.
Language mix
A card in English and a filler who writes in another language will misread voltage. Use numbers and SKU codes.
Codes survive language.
Vendor stickers
Vendor stickers over your lot code are a fight. Peel them at receiving, not at autopsy.
Receiving is the fight you can win.
Overtime kits
A kit started in overtime with tired staff is a different process. Mark it as such.
Tired is a variable.
Board dates
Do not move a launch date into a kit still on the bench. Move the date.
Dates do not pass leak tests.
Kit close-out notes
Last unit temptation
The last unit always gets gifted. Tape it to the card instead.
Gifts shrink n.
Rain on receiving
Wet cartons of empty hardware are a rust and paper story. Dry before you fill.
Rain is incoming inspection.
Two shifts, one kit
If shift two continues shift one’s kit, they must read the card aloud. Silent continuations skip the cap clock.
Aloud is a control.
Vendor coffee
Vendors who bring coffee onto the kit bench spill. Coffee is a flavour and a slip. Coffee stays off the bench.
Benches are dry.
Launch party units
Party units are not kit units. Pull them from a passed lot or do not serve them.
Parties are not QC.
Sheet backups
Email the kit photo to a shared inbox at 24 hours. Laptops die. Inboxes remember.
Inboxes are backups.
Kit last-mile checks
One oil
First kit is one oil. A second oil is branded kit. Write it on the lid.
Lids get read.
Scale morning
Check the scale the morning you fill the kit. Not last month.
Mornings are when mass is true.
24-hour alarm
Set an alarm for the leak check. Kits without alarms become shelf decoration.
Decoration is not data.
No pockets
Filled kit units do not leave in pockets. Sign that on the door.
Doors get ignored. Still put it there.
Kit packing notes
Lid text
Write the oil lot on the lid in marker. Cards hide under units.
Lids are visible.
Alarm owner
Name the person who owns the 24-hour alarm. Unowned alarms snooze forever.
Names get called.
Cage key
Two keys. One person on holiday should not freeze the kit in a locked box nobody can open.
Two keys, one kit.
Pass stamp
A red pass stamp on the card is allowed to be ugly. Ugly means it happened.
Pretty cards lie.
A last word on the first kit
First kit is allowed to look boring. Boring is a scale, a card, a 24-hour check, and no laser. Pretty is branded kit.
If a launch date tries to skip first kit, shrink the SKU count instead. A quiet passed unmarked unit beats a loud untested colourway.
Protect n
Pockets, lunches, and visitors shrink n. A cage and a sign-out sheet are not corporate theatre. They are how the number on the card stays true.
Ask 3DevicesCCELL for unmarked units when you are still on first kit. Marked units belong after the card says pass.
If the card is still blank at the end of the day, the kit did not happen. Write the lot, the mass, and the voltage before anyone leaves. A blank card is how first kit turns into a story.