Tight Tolerance Glass Machining: dimensional +/-0.005 mm on ground features. Single-piece prototypes to production volumes, quoted from your drawing.
tight tolerance glass machining is a measurable claim, so here is the number: dimensional +/-0.005 mm on ground features, achieved with cnc + in-process metrology and reported against ISO 2768 fine as baseline.
Specifications at a glance
| Held tolerance | dimensional +/-0.005 mm on ground features |
|---|---|
| Method | CNC + in-process metrology |
| Reference standard | ISO 2768 fine as baseline |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Getting the drawing right
The shop-floor rules that matter here:
- Cite ISO 2768 fine as baseline on the drawing so both sides measure the same way.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Typical applications
The recurring buyers of tight tolerance glass machining: aerospace optics (sensor windows, star-tracker flats, radiation-tolerant ports); led packaging (groove covers, phosphor carriers, package windows); optical sensors (sensor windows, filter caps, lens covers).
If the part is easier to draw than describe, the custom glass machining 3D + 2D builder turns dimensions into an RFQ in a few minutes.
For adjacent specifications, see infrared windows, glass wafer bonding, ultra-thin glass materials.
Buyer questions, answered
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
Which standard governs this?
ISO 2768 fine as baseline, verified by cnc + in-process metrology.
Is there a minimum order for tight tolerance glass machining?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Specifications on this page were last reviewed by our engineering team in September 2026.