Guides / Running a Group Buy
Building a Schedule Your Group Buy Can Survive
September 21, 2026
Group buy timelines have a bad reputation, and mostly for a fair reason: the published date was decided before anyone asked a factory.
Here is where the weeks actually go, so you can build a schedule from the bottom up rather than from a hope.
The phases, honestly
Quoting: 1 to 2 weeks. Sending a complete package to three shops and getting comparable prices back. A complete package comes back faster; an incomplete one generates a round of questions first. What complete means is in the CAD package a shop needs.
Prototype: 2 to 4 weeks. Machining a single part takes days. Waiting for it to join an anodising batch takes the rest. This is the step people underestimate most because they think in machine time.
Prototype review and changes: 1 to 2 weeks. You build it, type on it, find things and write them down. If a dimensional change is needed, add a second prototype round and another 2 to 4 weeks. Budget for two rounds and be pleased with one.
Material procurement: 1 to 3 weeks. Usually parallel with everything else, and occasionally not. 6061 is available everywhere. 6063 plate in a specific thickness can be weeks out in some markets, which is a real constraint rather than an excuse.
Production machining: 2 to 5 weeks. Scales with quantity, setups and how busy the shop is. This is the most predictable phase in the whole project.
Finishing: 2 to 4 weeks. Blasting, anodising, and inspection. It is a batch process at a third party with its own queue, and it is where slippage concentrates.
Second material and second finish: parallel, or not. A PVD coated brass weight involves the shop, the PVD house and the shop again. Started early it costs nothing. Started after the cases are approved, it is three weeks nobody planned for.
Inspection and packing: 1 week. More if you are kitting or doing retail packaging.
Freight: 1 to 4 weeks. Air is fast and expensive, sea is slow and cheap, and customs is unpredictable in both.
Add it up and a smooth run with one prototype round is roughly 10 to 16 weeks from approved drawing to cases at your door. Six to twelve weeks is achievable when the design is simple and nothing waits.
Why published timelines are so much longer
Because the clock a community watches starts at the close of the buy, and the phases above start at an approved drawing. Between those two points sits everything else: finalising the design, collecting payment, choosing a shop, negotiating, and often revising the product because the buy sold more or fewer units than expected.
That gap is where most of the disappointment lives. It is not the factory being slow. It is a schedule that was published before the project had a schedule.
What to do about it
Get dates in writing, per phase. Not “about three months”. Ask for prototype lead time, production lead time and finishing lead time as three separate numbers. The shop that gives you three specific numbers is telling you it has done this before.
Ask who does the finishing and what their queue is. This is the question that most often surfaces a risk nobody mentioned.
Add a buffer and keep it to yourself. If the shop says twelve weeks, publish sixteen. Shipping early is a pleasant surprise. Shipping late is the only thing your buyers will remember.
Start the second material early. The weight is not on the critical path unless you put it there by ordering it last.
Do not compress the prototype. It is the most tempting week to save and the most expensive one to lose. The reasons are in why every run needs a prototype.
When something slips
It will, eventually. Two things determine how much damage it does.
The first is how early you know. A shop that tells you in week three that anodising is running two weeks long gives you options. A shop that tells you in week eleven gives you an announcement to write.
The second is what you do with the information. Communities are remarkably tolerant of delays that are explained early with a photograph of the actual parts. They are not tolerant of silence followed by a new date with no explanation.
A schedule that works
Approved drawing, then: quote 2, prototype 3, review 2, second prototype 3, production 4, finishing 3, pack 1, freight 3. That is 21 weeks with a second prototype round included and no heroics anywhere.
Publish 24. Then spend the spare weeks being the organiser who shipped early, which is a reputation worth more than any colourway.
Frequently asked questions
How long from approved drawing to delivered cases?
Six to twelve weeks is typical for a straightforward aluminium case including one prototype round. Complex mounts, a second material or a busy anodiser push it out, and community group buys frequently run longer than that because the schedule starts before the drawing is approved.
Which step slips most often?
Finishing. Anodising and any specialist coating are batch processes at third parties with their own queues, and they are the part of the chain your machine shop controls least.
Should I publish the date before I have quotes?
No. Get dates in writing from the shop you pick, add a buffer, then publish. A date published from optimism is the single most common reason a group buy loses its community's trust.
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