Concept site Truebore Precision is a fictional CNC machine shop, designed and built by Patrick Bushe to show what I make for CNC machine shops. Fictional, by Patrick Bushe

Made to print. Held to 0.005 mm.

Truebore is a 22-machine CNC shop in Gardena. Send a STEP file and a drawing, get a quote back in 24 hours, and get your parts with the inspection report in the box.

Tightest tolerance
±0.002
Quote back in
24 hours
Order size
1 to 5,000

Sample shop numbers

Ø60.00 40.00 8.00 Ø22.000+0.005/0 4x Ø5.50 thruØ0.010A A Front viewSection A–A PartFlanged bushingTB-1042 Material6061-T6 Qty250 FinishAnodized RevB Unless noted±0.01 mm Unitsmm Scale1:1 Sheet1 of 1
A CNC mill cutting a metal part
Detail B: the 5-axis cell

Six ways to make the part

Full capabilities

Who we cut for

Aerospace

Flight hardware made from your drawing and your revision, with material traced to the mill.

  • Brackets and fittings
  • Sensor housings
  • Actuator parts

Medical devices

Instrument parts and fixtures in 316 stainless, titanium and PEEK, cleaned and bagged.

  • Instrument parts
  • Test fixtures
  • Device prototypes

Robotics

End effectors, gearbox housings and shafts, with bearing fits that go together by hand.

  • End effectors
  • Gearbox housings
  • Shafts and couplers

Motorsport

Short runs on short notice: uprights, spacers and manifolds between race weekends.

  • Uprights and spacers
  • Intake manifolds
  • Billet brackets

Every lot ships with the numbers.

First-article inspection on every new part. CMM, height gauge and pin gauges on every lot, and the report rides in the box with the parts. Material certs and a certificate of conformance on request.

  • ISO 9001:2015Quality system Sample
  • AS9100DAerospace Sample
  • ITAR registeredDefense work Sample
  • Your NDASigned before you send files
Inspection report · TB-1042 rev BSample
FeatureNominalToleranceActualResult
BoreØ22.000+0.005/022.003Pass
HubØ32.00±0.0131.996Pass
Length40.00±0.0240.008Pass
Flange8.00±0.027.991Pass
Position4xØ0.0100.006Pass

How a quote works

  1. Send the file

    A STEP or IGES model plus a PDF drawing with your tolerances. Need an NDA first? Tick the box and we send ours, or sign yours.

  2. Get a quote in 24 hours

    Price per part at three quantities, the lead time, and any change to the drawing that would cut the cost without hurting the part.

  3. Parts with the report

    New parts get a first article for your sign-off. Then the lot ships with the inspection report and certs in the box.

Have a drawing ready?

Upload it and watch the title block fill in as you go.

Request a quote