Printer profiles and settings

The printer profile is how OpenChip knows what your machine can make. Every manufacturability warning is measured against it.

First run

The onboarding wizard asks for it before anything else. Pick the closest preset — Standard 4K resin printer if you are unsure — and name the project.

Three presets ship, with their headline numbers:

Preset	XY resolution	Minimum feature	Build volume
Standard 4K resin printer	35 µm	0.2 mm	143 × 89 × 175 mm
High-resolution 8K / 12K	20 µm	0.12 mm	219 × 123 × 260 mm
Large-format resin printer	46 µm	0.25 mm	298 × 165 × 300 mm

There is also an I’ll enter my own values path, seeded from the standard preset so you are correcting four plausible numbers rather than filling four empty boxes.

Every field is what it says and every field stays editable. Field-by-field detail is on Printer profile fields.

Changing it later

Settings → Project settings… → Printer. The preset buttons and fields there edit the profile of the project you have open.

An open project carries its own copy — a .openchip file stores the profile it was designed against, so a chip someone sends you arrives with the assumptions it was built under. To make the open project’s profile the default for every new project as well, click Set as default under Use for new projects in the same section.

Changing either re-runs every check immediately. Nothing about your design changes, only what the app says about it.

When to change it

• You changed resin. Cure-through and minimum feature both move. This is the most common reason a chip that printed fine last month does not now.
• You changed machine.
• You measured your real limit with a test coupon. Replace the rule-of-thumb minFeatureSizeMm with what you actually measured. See A first test-print protocol.

The rest of Settings

Take the tour replays the first-run guided walkthrough. It is available any time.

The tour marks itself seen the moment it starts, not when it finishes. A user who leaves halfway has made that choice, and re-offering it on the next load would override them — so it stays out of the way until you ask for it again.

Run setup again reopens the onboarding wizard. Setup ends by creating a new project, so it asks before discarding the one you have open. To switch the open project to a different preset, use the preset buttons in the Printer section instead.

Where settings are stored

In your browser, under a versioned key, alongside the draft of your current project. Nothing is transmitted anywhere.

Two things live there: whether you have completed onboarding and seen the tour, and your default printer profile. Everything else about a design is in the project file.

Clearing your browser’s site data resets them. Your saved .openchip files are unaffected — they are files on disk.