How an Alexa Speaker Is Made

Primary process: Injection Molding. The full route, materials, tolerances and design tips for an alexa speaker, with an indicative cost.

Injection MoldingPrimary process
PolymerFamily
7Route steps
+/-0.05mmTypical tol.

An alexa speaker is primarily made by Injection Molding. Plastic injection moulding injects molten polymer into a cooled steel mould under pressure; it solidifies and ejects as a finished part in seconds. Below is the full route to make an alexa speaker, the materials it suits, the tolerances to expect and the main design points. The route is free, from the finder.

Step by step

How an alexa speaker is made

The usual route, raw material to finished part. The amber step is where the alexa speaker gets its basic shape.

  1. Material

    Select the polymer grade and colourant for the alexa speaker and dry the pellets.
  2. Tooling

    Cut the steel or aluminium mould that forms the alexa speaker.
  3. Injection Molding

    Melt and form the polymer in the cavity to make the alexa speaker.
    Tooling High (steel mold)   Tolerance ±0.05 to 0.2mm   Lead 4 to 8 weeks
  4. De-gate and trim

    Remove the runners, gates and flash.
  5. Secondary

    Where the alexa speaker needs them, add inserts, printed graphics or machined details.
    Tooling None   Tolerance ±0.125mm, to ±0.025mm   Lead 1 to 10 days
  6. Assembly

    Where the alexa speaker joins other parts, snap-fit, weld or bond it into the finished product.
    Tooling Low   Tolerance good   Lead immediate
  7. Inspection

    Check fit, finish and any functional dimensions.

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Precision

Tolerances to expect

TYPICAL TOLERANCE IT CAN HOLD
+/-0.05mm typicalcoarsefine+/-1mm+/-0.1mm+/-0.01mm+/-0.005mm
Where this process typically lands. Tighter is possible with extra operations like grinding, at higher cost.
Materials

Materials for an alexa speaker

GradeWhy it suits this
ABSTough, cheap, easy
Polypropylene (PP)Living hinges, chemical
Glass-filled nylon (PA-GF)Stiff, strong
Design

Design tips

General pointers. The full design-for-manufacturing list for an alexa speaker is in the dossier.

  • Thick or uneven walls. Even them, core out thick bosses.
  • No draft. Add >=1 deg draft.
Cost

What an alexa speaker should cost

The qty-1 figure is really the mold (2k to 50k+ USD) amortised; above ~5k parts it is pennies of resin.

PER-PART COST vs VOLUME
one-offat volumeVolume per order, low to highCost per part
Per-part cost drops as volume spreads tooling and setup over more parts. The exact figures for an alexa speaker at your volume, in your currency, are in the dossier.
MODEL EST.
$2390 to 6695 per part at 1 off
A rough ballpark only. The dossier gives should-cost at your exact volume and currency, with the full breakdown.
GET THE FULL DOSSIER

Everything you need to quote and source it

The free route above is yours. To actually put a number on an alexa speaker and buy it well:

  • Should-cost at your exact volume in 12 currencies, with the material, processing, tooling and overhead breakdown
  • Who to source from, typical MOQ and lead time, and the exact RFQ checklist to send
  • A quote checker that tells you if a supplier quote is fair, and the red flags to watch
  • The full DFM list and a ready-to-send RFQ draft

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See also: How Injection Molding works and the full route for an alexa speaker in the finder.

FAQ

Frequently asked questions

How is an alexa speaker made?
An alexa speaker is primarily made by injection molding. The route is: Material; Tooling; Injection Molding; De-gate and trim; Secondary; Assembly; Inspection.
What does an alexa speaker cost?
It depends on size, tolerance and volume. As a rough ballpark it starts around $2390 to 6695 per part at 1 off and falls with quantity. The dossier gives should-cost at your exact volume and currency. A model estimate, not a quote.
What material is an alexa speaker made from?
Common choices are ABS; Polypropylene (PP); Glass-filled nylon (PA-GF).
What is the main process for an alexa speaker?
Injection Molding. High-volume plastic parts of almost any shape, from housings to medical devices.
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