An enquiry asks for a custom bracket. It arrives with a sketch on a photograph of a whiteboard and asks for a price.
It could be a standard part with two extra holes, or a pressed component requiring a tool costing more than the buyer's entire annual requirement. Nothing in the enquiry distinguishes between them, and quoting either way is guessing.
The first question: can a standard part be adapted
Modifying an existing item is dramatically cheaper than producing a new one. Many custom enquiries are solved this way and the buyer never knew the option existed.
Category one: a standard part with a modification
Extra machining, a different finish, a length change. Quick, cheap, no tooling and frequently the right answer.
Category two: a standard part in a non standard material
Same geometry, different specification. Moderate cost, possible minimum quantities and no tooling.
Category three: a bespoke part from existing processes
Made to a drawing using processes you already have. Higher unit cost, possibly some fixturing, viable at modest volumes.
Category four: a bespoke part requiring tooling
New tools, dies or moulds. A substantial one off cost before a single part exists, which only makes sense above a volume threshold.
Ask for the volume before anything else
Tooling is amortised across quantity. A tooled part at low volume is never viable and the conversation should establish that before any engineering time is spent.
Ask what the part actually does
Function rather than form. Engineers frequently solve a requirement differently and better than the sketch a buyer has drawn.
Ask what they are using now
A part being replaced, an existing supplier or a prototype. This tells you more about the requirement than any description.
Ask for a drawing or a sample
A dimensioned drawing, a model file or a physical sample. A sketch on a whiteboard cannot be quoted and asking for better costs nothing.
Explain the tooling arrangement clearly
Who pays, who owns the tool, where it is stored and what happens if the relationship ends. Buyers rarely ask and it matters enormously later.
Explain the minimum order for bespoke parts
Production runs have economics and a buyer requesting a small quantity of a bespoke item needs to understand why the unit cost is what it is.
Explain the lead time honestly
Design, tooling, first article and production. Bespoke lead times are measured in months and buyers plan on weeks.
Explain the first article process
A sample approved before production. This protects both parties and buyers new to bespoke manufacturing do not know it exists.
Cover the obsolete part enquiries
Many custom enquiries are really replacements for something no longer made, which is the ground covered in obsolete part and legacy equipment enquiries.
Check compatibility before assuming bespoke
Frequently a standard part from another range fits, which is the ground covered in part number and compatibility questions for industrial suppliers.
Scope the enquiry before it reaches engineering
An assistant that asks the annual volume, what the part does, what it replaces, whether a drawing exists and what the deadline is sorts a whiteboard sketch into the right category before anybody spends an afternoon on it. Handling several linked questions in one exchange is what how AI handles multi part customer questions describes, and the wider bespoke process sits in made to order and customisation questions. See pricing, run the numbers on the chatbot ROI calculator, and the sector view sits under manufacturing.