High Speed CNC Milling

Insight: Material Selector

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Insight: CNC Part Design

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DESIGN FOR SPEED
Following these design guidelines will result in an optimal and economical manufacturing time.

FINISHES

  • As machined finish, all sharp edges removed.
  • Bead blast, fine matt finish (will be applied to whole component).
  • Options to anodise or laser mark.

See more surface finishes and materials.

HOLES

  • No maximum, but some holes will be flat bottomed. Avoid deep drill holes.
  • Minimum hole diameter 0.5 mm.

SLOTS

  • Maximise radii to allow for bigger diameter tools with deeper reach. Maximum slot depth 50 mm.
  • Minimum slot width 0.75 mm. Using 1.25 mm will allow for greater depth and speed.

These features require side-setup. Designing for top/bottom access will minimise cost (mini cube).

THREADS

  • HELICOIL® – In metric and UN (in a range of common sizes).
  • Counter bore – DfA and extend thread depth to more than Ø × 2.5.
  • Unified (inch) coarse and fine threads: General rule depth = Ø × 2.5.
  • Metric threads: M1.6 to M12. Selection of metric fine. General rule depth = Ø × 2.5.


For our full range of threads, and dimensional lookup see protolabs.co.uk/cncthreads

Cube sides are 90 mm, and manufactured in aluminium alloy 6082

For our full range of billet sizes see protolabs.co.uk

Get a quote online at identity.protolabs.com/signin


DESIGN FOR FUNCTION
These features show off capabilities, but take longer to machine.

CONTOURED SURFACES

Ball milling provides 5-axis like contoured surfaces using 3-axis machining.
Note the lofted radius – tool access from above.

 

 

COMPLEX DETAILING

Text is possible, but using smaller cutters takes longer. Using rounded text and adding radii will help.

WALLS, BOSSES AND RAISED FEATURES

A minimum wall thickness of 0.5 mm is possible. Keep material stiffness in mind – the thicker the better particularly for plastic/ductile materials.


Try and avoid raised/embossed features (the whole of this face is removed to create it).

Consider an insert (stud or dowel) as milling a hole or thread is more cost effective than a raised feature.

POCKETS

The smaller the radius, the smaller the tool, and so shallower the pocket.
Either add a radius (and chamfer the insert). Or relieve (extend the cutter diameter beyond
the corner) 2 options shown.

Design for Manufacturability software will highlight sharp corners in blue (this material will not be machined)

   A wide range of plastics are stocked.

From CAD to Component... In Hours

1

We carefully check every Design for Manufacturability
(DfM), and manufacturing time - typically in less than in hour.

2

3D CAD design time.

3

Upload for quote.

4

Free DfM feedback.We offer DfM feedback shown on your 3D design–saving time on 2D drawings and calls (we have experts on call, if and when you need us).

5

Accept the DfM advice or iterate design–ensuring right first time manufacturing and optimising DfM early.

6

Place order (PO or credit card)

7

Order stock = zero time, as we carry over 30 pre-prepared materials.

8

Manufacturing. Our high-tech manufacturing facilities are purpose built for speed.

9

Inspection, measurement and gauging.

10

Securely packaged.

11

Shipping.


* Expidite and shipping fees apply, our standard and typical manufacturing time is 3 working days + 1 day shipping. Times are applicable to this sample in aluminium, Bigger/more complex parts and different materials may take longer. Upload now for price and delivery time.