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P.09Individuals, craftsmen & workshops

Part drawings for machining & strength calculation

You know what you want made, but the drawing is missing, or the certainty that the part will hold: dimensioned drawings for the machinist, turner or fabricator, and strength checked by calculation.

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FIG. 09 — Drawings & calculations

A drawing the workshop understands first time

A machinist, turner or fabricator needs a clear drawing to quote and manufacture: dimensions, tolerances, material, surface finish. A rough sketch means an uncertain quote, back-and-forth and sometimes a part that doesn't fit. The drawing is made so the part comes out right first time.

Mechanical part drawings

  • 3D model of the part, from a sketch, an existing part or an idea;
  • 2D drawing dimensioned and toleranced to ISO standards: fits, geometric tolerances, surface finishes;
  • material, treatment and finish specified;
  • workshop-ready files: PDF for the drawing, DXF for laser or waterjet cutting, STEP for CNC machining.

Strength calculation of a part

Will a modified, lightened or differently-made part hold? Calculation answers before manufacturing: stresses, deflections and safety factor, using strength of materials or simulation (ANSYS, RDM Le Mans). The result is explained simply, with the areas to reinforce if needed.

  • choice of a thickness, cross-section or material;
  • checking a bracket, a tab, a shaft or a weld;
  • comparing two solutions before manufacturing.

Who is it for?

Individuals having a part made, craftsmen and small workshops without a design office, project owners consulting several manufacturers. For a part to be designed from scratch, see also custom mechanical parts.

Frequently asked questions

I only have a hand sketch: is that enough?

Yes. With a few dimensions, photos and the intended use, the sketch becomes a 3D model and then a proper drawing.

Does the calculation count as certification?

No. A calculation report checks the sizing; some equipment (lifting gear, vehicle parts subject to type approval) is also subject to regulatory procedures and dedicated bodies. This is flagged from the start.

Can I give the drawing to any workshop?

Yes. The drawings follow technical drawing standards and can be used to consult several manufacturers.

02Process

From need to deliverable, step by step.

Every step is shared with you. You know what is being done, why, and what comes next.

  1. 01

    Need

    The part, its function, its loads.

  2. 02

    Model

    Part cleaned up in 3D.

  3. 03

    Verification

    Strength and fitting dimensions.

  4. 04

    Drawings

    Dimensioning the workshop can read.

03Price guide

How much does a part cost?

It all depends on the part: its size, material, process and quantity.

Part already designedListed price

Available in the shop, ready to order.

Custom partFree quote

After a first exchange and a look at your photos.

VAT not applicable, art. 293 B of the French General Tax Code.

04Other services

Another need? It all comes from the same expertise.

05Contact

Let's talk about your part.

Describe your part and attach photos, dimensions or files.

  • Reply within 48 hbusiness days
  • Free quoteno obligation
  • Privacynon-disclosure agreement on request
  • A single point of contactfrom the first exchange to delivery

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You are

    After you send it

    1. I read your requestand your files, within 48 business hours.
    2. I get back to youby phone or e-mail, with my questions.
    3. You receive a quotefree and with no obligation.