A photo of a pencil sketch on the back of an envelope
A local customer emails a phone photo of a sketch: a box section bracket with a few dimensions, an arrow saying about this big, and a note saying 3mm steel, painted black, need six. Another sends a hand drawn cover for a machine with two dimensions and a request for a price by tomorrow.
The estimator either guesses, or draws the part in CAD to price it properly, or emails back with questions and waits. The CAD time is not paid for unless the order comes in.
Why sketches take so long
Small customers, maintenance engineers and trades often do not have CAD. Their enquiries are some of your most loyal work, but each one needs interpreting. Missing dimensions, unclear bends and vague material notes all have to be resolved before a price means anything.
- Sketches lack dimensions, bend directions or material.
- Questions go back and forth by email over several days.
- The estimator draws the part in CAD just to price it.
- Nothing from the sketch is reused if the order comes in.
- Sketch enquiries are put to the bottom of the pile.
What the sketches cost
Unpaid drawing time on enquiries that may not convert. Slow replies to small customers who then go elsewhere. And a temptation to guess prices on sketch work, which leads to jobs that lose money or quotes that are too high.
The sketch intake we build
- The customer's photo, PDF or scan is read by an AI step that picks out shapes, dimensions, notes, material, finish and quantity where they are written.
- The tool lists what it found and what is missing, such as a flange length, a hole size or a bend direction, for the estimator to check.
- A short form is sent to the customer asking only for the missing items, with the sketch shown and the gaps marked.
- Once the dimensions are complete, a simple flat pattern and bend list are produced for common part types such as brackets, angles, trays and covers.
- Your rates are applied to draft a price, which the estimator checks and sends.
- If the order comes in, the flat pattern goes to the drafter as a starting point for the proper drawing, rather than starting again.
| From the sketch | Used for |
|---|---|
| Dimensions found | Starting geometry |
| Dimensions missing | Questions for the customer |
| Material and thickness notes | Material cost and bend data |
| Finish notes | Finishing lines on the quote |
| Quantity | Price breaks |
The tool is good at simple parts. For complex assemblies, it helps gather the information, and the drafter still draws it.
What changes for small enquiries
Sketch enquiries get a quick first reply, even if it is a question, and the questions are specific. Simple parts are priced without full CAD work. When the order comes, the geometry is already there. Small customers get the same attention as big ones, which is often how they become big ones.
Estimators also stop dreading the sketch pile. The tedious part, working out what is missing and asking for it, is done for them, and their time goes on pricing. When the customer's answers come back through the form, they arrive in a consistent layout rather than scattered through an email thread, which makes the second look at the job much quicker.
Do sketches sit at the bottom of your pile?
- Enquiries arrive as phone photos of sketches.
- You draw parts in CAD just to price them.
- Missing dimensions mean days of emails.
- Small customers wait longest for quotes.
- Sketch work is priced by guesswork.