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Parametric design

Custom sizes without redrawing.

Custom work is the same product in a new width, a new stock or a new name. Build it once from named dimensions — change one, and the geometry and toolpaths follow.

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Every custom order shouldn’t be a new drawing.

In most CAD/CAM a new width means moving every panel, dado and hole by hand — then the cut list, then the toolpaths. With skilled hands harder to hire every year, that is time a shop does not have.

New to parametric design? You already think this way.

Ask a maker for a shelf and they’ll say “as wide as the alcove, in whatever ply is in the rack.” That sentence is a parametric design: the sizes that matter, and how they relate. Upcut lets you write it down once and use it for every order after.

  1. Step 1

    Name the sizes that matter.

    Instead of a line that is 12 inches long, the design keeps a size called Width.

    Width = 12 in
    Material_Thickness = 3/4 in
  2. Step 2

    Say how they relate.

    A formula is one line in plain arithmetic — or ask your agent to write it for you.

    Height = Width / 2
    Dado_Depth = Material_Thickness / 2
  3. Step 3

    Change one. The rest follows.

    Set a new width, and everything that depends on it moves with it — toolpaths included.

    Width = 18 in
    → Height = 9 in

One file per product, not one per size.

If you have ever saved sign_12in.svg next to sign_18in.svg, this is for you.

  • Etsy & Amazon listings

    Keep one file per listing. Sizes and personalised names are parameters, so a new order is a few values to change, not a new drawing.

  • Cabinets & furniture

    One carcass for every cabinet in the kitchen. Width, height and sheet thickness change; the dados and joints follow.

  • Boxes & enclosures

    Build the box around what goes in it. Set the inside size and the stock, and the panels come out to fit.

  • Signs & plaques

    A new house number or business name on the same design — without redrawing the layout or the toolpaths.

Not new. Just new to the shop floor.

Engineers have designed this way for more than thirty years. The idea that runs car and aircraft programmes works just as well for one maker and one machine.

  • Since 1988

    The engineering standard.

    Pro/ENGINEER shipped the first commercially successful parametric CAD in 1988. Mechanical design has worked this way ever since.

    Source: Shapr3D, History of CAD
  • Cars, aircraft, products

    Built for families of parts.

    Automotive, aerospace and consumer-products teams took it up first: one model, many sizes, and revisions that never stop.

    Source: Wikipedia, Creo Parametric
  • Made to measure

    Furniture cut to each customer.

    In one EU-funded project, buyers set a piece’s size online and the parametric model became a CNC cutting pattern for a local carpenter — more than 1,500 pieces sold.

    Source: European Commission, CORDIS

Redrawing by hand, or changing one number.

  • Redraw for every size. A new width means moving every panel, dado and hole by hand.

    Change one number. Sizes are named parameters. Change one and every part that depends on it follows.

  • Joints that break. Switch from 3/4 to 1/2 inch stock and every dado is the wrong depth.

    Formulas keep joints true. Dado_Depth = Material_Thickness / 2, so the joint follows the stock.

  • CAM set up again. Each new size needs its toolpaths prepared from scratch.

    Toolpaths that follow. Toolpaths recalculate for each size — review them and export.

  • A size left behind. Change the width, forget one hole, and find out at the machine.

    Rules don’t forget. Every size that depends on another updates with it, so nothing is left at the old value.

  • A file per variant. A folder of near-identical drawings to keep in step with each other.

    One component, every variant. Every size and personalised name comes from one design.

One listing. Every size.

Build your product once as a parametric component. Ask your agent for every size a listing needs — or a new name on the same sign — and get cut-ready files for each in minutes, not an evening of redrawing.

  • Every size and variant from one component
  • Personalised names and numbers without redrawing
  • Toolpaths regenerate for each size

FAQs

  • What happens to my toolpaths when a size changes?

    They follow the geometry. Change a parameter and the toolpaths recalculate for the new size — review them as you would any others before you export.

  • Do I need to know programming?

    No. A formula is one line of arithmetic, like Height = Width / 2. If you’d rather not write it, describe the rule to your agent and it sets the parameters and formulas for you.

  • Can my agent change parameters?

    Yes. Parameters and formulas are among the tools Upcut gives your agent, so you can ask for a new size in plain words. Every change it makes is its own revision.

  • Will anything be cut without my approval?

    No. Toolpaths wait for your review — each operation, its cutter and its depth — and nothing leaves Upcut for your machine until you export it yourself. Simulate and check every file before you run it.

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