Every custom bottle project stalls at the same point: someone asks for a quotation and sends a picture. A mould shop cuts steel from geometry and tolerances, so the file you send decides how fast your project moves.
The 6 Things Your File Has to Carry
| Item | What it fixes | What happens without it |
|---|---|---|
| 3D solid model | The full shape, as STEP or IGES. | Someone models your bottle from a photograph and guesses. |
| Dimensioned 2D drawing | Heights, diameters and their tolerances. | No basis for inspecting what arrives against what you ordered. |
| Capacity | Brimful and fill volume, in ml and oz. | A bottle that looks right and holds the wrong amount. |
| Finish designation | The thread or crown your closure needs. | A beautiful bottle your cap does not fit. |
| Glass weight | Target weight, which sets wall thickness and cost. | A quotation that cannot be compared with any other. |
| Label panel | The flat area your label needs, clear of the seams. | Artwork discovered at proofing to be crossing a parting line. |
Why a Model and a Drawing Are Both Needed
A solid model carries shape with perfect fidelity and says nothing about what may vary. Glass always varies, so a model alone leaves your supplier guessing at how much.
The drawing supplies that half. It names the tolerance on each dimension, which is what your incoming inspection later measures against. SGSBOTTLE issues both for glass from 14 lines in Shandong and Xuzhou, so your quality team and your mould shop work from one set of numbers.
What a Factory Can Draw for You
Most projects do not start with a file. You send a sketch, a competitor bottle, a photograph with a rough height, or a description of the shelf you want to sit on.
A mould shop turns that into a drawing you approve. SGSBOTTLE engineers add the seam positions, the label panel and the wall distribution the shape allows, then send it back before any steel moves.
Steel gets cut from geometry, not from a picture. SGSBOTTLE tools projects for 14 lines in Shandong and Xuzhou.
The Details Buyers Leave Out
Three omissions cause most revisions. Capacity stated as a nominal number with no brimful figure, which leaves your headspace undefined. A finish named by diameter alone, when the designation carries the thread profile as well.
And no glass weight. Weight decides your wall thickness, your strength and a large part of your unit price, so a 750 ml (25 oz) design quoted without it can come back at any figure.
How to Read the Drawing You Get Back
Check three things before approving. That the capacity is stated brimful and to your fill line, since those differ. That every critical dimension carries a tolerance rather than a bare number.
And that the label panel and seam positions are marked. Your artwork gets placed against those, and finding them after proofing costs a round of samples nobody planned for.
What Goes on Your Enquiry
Your model or sketch, the capacity in ml and oz, the finish and closure, your target glass weight, and the label you plan to apply. SGSBOTTLE comes back with a dimensioned drawing, the tolerances and the mould quotation for your project.