Engineering desk online Wuxi, China · quoting across 6 time zones

Tolerance is the product.

Drop in a 3D file and get an engineering-grade reference price in about eight seconds — with a DFM read on the features that will cost you money. 3 a.m. included.

Get an instant price Build a machine instead

Geometry is measured in your browser. Your file never leaves this page.

Part specimen · illustrative AL 6061-T6
120 90 Ø68 H7 Ø17 × 4 FRONT 18 SIDE SECTION Ra 0.8 Measured, not uploaded
Unit price · qty 10 41.80USD Machining cycle 6.4min Lead time 8–12days
±0.005mm Best achievable tolerance, five-axis
8s Typical time from drop to price
120+ Materials and finishes on the shelf
48h Fast-track lead time, when the shop has room
01 — Instant quote Cost model v1

Price the part before you send the email.

Every field below feeds a real cost model: blank volume, material removal rate, machine hour rate, set-up amortised across the batch, finishing priced by area, inspection by tolerance class. Nothing here is a random number.

Runs locally No file upload Reference price, not an offer
Geometry
01 Geometry STL / OBJ measured here
Drop a 3D file here, or browse STL, OBJ, STEP and IGES are all measured and priced right in your browser — the file never leaves the page. STEP/IGES load a geometry kernel once (about 8 MB). DWG, DXF and PDF go to an engineer.
File units STL carries no units — confirm against your model
Process
02 Process Rate table is ours, not a database
Tolerance class
03 Tolerance class The single biggest lever on price
Quantity and lead time
04 Quantity & lead time Set-up is amortised, so quantity matters
Lead time

Ex-works Wuxi, near Shanghai. Add 2–4 weeks for sea freight, or 3–5 days by air express.

02 — Capabilities

Six ways to make the same part. We pick the one that holds.

The process is not a preference, it is a consequence of the drawing: how tight, how thin, how hard, how many.

CNC-01

3-axis milling

Plates, housings and brackets up to 800 × 500 × 400 mm. VMC with a 24-tool magazine, rigid enough to hold stainless without chattering.

±0.02 mmRa 0.8
CNC-02

Turn-mill

Shafts, fittings and bushings with cross-drilled holes and milled flats in one set-up — which is the only way concentricity actually holds.

Ø2–120 mm±0.01 mm
CNC-03

5-axis simultaneous

Impellers, medical housings, five-face work in a single set-up — for the parts where re-fixturing would eat the tolerance you paid for.

±0.005 mmRa 0.4
SHT-04

Sheet metal

Laser cutting to 12 mm carbon steel, CNC bending, inserts and hardware pressed in before finishing — so nothing has to be re-opened afterwards.

±0.1 mm6000 mm bed
EDM-05

Wire & sinker EDM

Hardened tool steel, sharp internal corners, deep ribs — the cuts a rotating cutter physically cannot reach. Micro-holes from Ø0.3 mm.

±0.005 mmRa 0.4
SYS-06

Non-standard equipment

Fixtures, automation cells and special-purpose machines built from your drawing — mechanical design, machining, assembly and acceptance testing under one roof. This line is quoted by engineers, not by a form.

How we scope a machine
  • G0Requirements clarification — we write down the capacity target, the acceptance test and the hard constraints before anything is drawn.
  • G1Concept review — you approve cycle time and layout, or we do not proceed.
  • G2Design freeze — drawings and BOM signed off. After this, changes go through a written ECR.
  • G3FAT and SAT — it passes on our floor, then it passes on yours.
03 — Stock & tolerance

What we keep on the shelf, and what it can hold.

If your grade is not here, ask — it is usually a three to seven day sourcing question, not a refusal.

Material properties and achievable tolerances
Material Density Tensile Best finish Typical use
Al 6061-T62.70 g/cm³310 MPa Ra 0.8 Enclosures, brackets, vacuum parts
Al 7075-T62.81 g/cm³572 MPa Ra 0.8 Aerospace structure, high-load fittings
SUS 3047.93 g/cm³520 MPa Ra 0.8 Food equipment, general corrosion duty
SUS 316L8.00 g/cm³485 MPa Ra 0.4 Pharma, marine, chloride exposure
Carbon steel 10457.85 g/cm³600 MPa Ra 1.6 Shafts, gears, jigs
Brass H628.50 g/cm³370 MPa Ra 0.4 Electrical contacts, fittings, valves
Ti-6Al-4V4.43 g/cm³950 MPa Ra 0.8 Medical implants, UAV, chemical plant
Engineering plastics 1.0–1.4 g/cm³— Ra 0.8 POM / PEEK / ABS insulators and wear parts

Castings, forgings and exotic grades are sourced on request — lead time extends by three to seven days.

04 — How it runs

From your upload to your dock, in six moves.

The only step that needs you is step one. Everything after it is our problem until step six, and then it is your dock's.

  1. 01 You upload or type it STL, STEP, IGES, DWG, PDF — or just the envelope and the material.
  2. 02 Reference price in seconds The cost model runs locally. You see the breakdown and the DFM watchlist immediately.
  3. 03 An engineer reads the drawing Within one working day: a firm price, the risks we can see, and whether that tolerance is worth paying for.
  4. 04 First article, then batch First article with a dimensional report. Nothing runs in volume until you have signed it off.
  5. 05 Production & inspection In-process checks plus CMM verification on critical features. The report ships with the parts.
  6. 06 Packed and shipped Export packing, FOB or CIF, air express or sea. Documents handled — no surprises at the border.
05 — Quality control

Checked before it is shipped, not after you complain.

A tolerance claim is only worth what the inspection behind it is worth. Every export order leaves with a dimensional report and a material certificate, and critical features are verified on a coordinate measuring machine rather than with a caliper.

  • First article inspection report with every batch
  • Material mill certificate traceable to the heat number
  • CMM verification on every critical feature
  • Surface finish and hardness checks on request
0.005mm Best achievable, five-axis
12× CNC centres and EDM machines on the floor
100% Of export orders inspected before packing
16yr Quoting export work
06 — Non-standard equipment

Half of what we build is not a part.

Fixtures, automation cells, special-purpose machines. You are not buying a machine — you are buying a cycle time that has to be met. So we do not put a price on this line from a form: we write down your capacity target and your acceptance test first, and then quote.

Scope a machine with an engineer Free clarification review · 48 h
G0 Requirements clarification ≤ 48 h
G1 Concept & cycle-time review Layout + budget
G2 Design freeze Drawings + BOM
G3 FAT, then SAT Signed protocol
07 — Before you ask

The questions that decide whether we get the order.

If yours is not here, put it in the message box — an engineer answers it, not a sales script.

Is the instant price the final price?

No — and treat any tool that says otherwise with suspicion. It is a reference price built from your geometry and our machine rates. After an engineer reads the drawing it moves. Usually down, because the model has to assume a conservative set-up. Occasionally up, if a feature needs a second set-up or a custom cutter.

Do you sign an NDA?

Yes, before you send anything you consider sensitive. Say so in the message box and it comes back countersigned. If a drawing is confidential, send the envelope and the material first — that is enough for a first price, and it identifies nothing.

What is the smallest order you accept?

One piece. Prototypes are how most of our export accounts started. The unit price is just higher, because the set-up is carried by one part instead of two hundred — which is exactly what the cost breakdown in the engine is showing you.

Which files can you actually read?

STEP and IGES give the cleanest results. STL and OBJ are fine for estimating but carry no tolerance information — they are just a skin. Native SolidWorks, Inventor or DWG files we can also open. A PDF drawing with dimensions is enough if that is all you have.

How do you handle shipping and terms?

Ex-works, FOB Shanghai or CIF — your call. Air express for anything urgent, sea for volume. Payment terms start at 30% deposit for new accounts and loosen after a few orders. We are not precious about it.

Can you take over a part another shop keeps getting wrong?

That is most of what we do. Send the drawing, the failed parts if you still have them, and the inspection report if there is one. Nine times out of ten the problem is the set-up and the fixturing, not the machine.

08 — Contact

Send the drawing. We will send the price.

Four contact fields and a message box. Everything technical has already been carried over from the quote above — you should not have to type it twice.

Carried over from your quote —
Process— Material— Quantity— Tolerance— Surface finish— Lead time— Reference price— Geometry— Source—
An engineer replies within one working day.

Demo build: this form validates locally and does not POST anywhere. Point it at your CRM, mail service or form endpoint before going live — see README § Wiring the form.

What happens next
You get a reference number immediately. Quote it in any later email and we can find this exact enquiry.
An engineer reads the drawing and returns a firm price, plus anything on the drawing that is going to cost more than it needs to.
No newsletter, no sequence, no follow-up drip. One reply, from a person.
Or skip the form
contact@xdetron.com
Put the drawing in the first email — it saves a round trip.
+86 180 5193 8829
Phone & WhatsApp · Mon–Sat, 08:30–20:00 GMT+8.