Sample profiles

A sample profile describes the material you're testing: its dimensions and the safety limits the machine must respect. You manage sample profiles on the Sample profiles screen.

A sample profile is one half of a test — the other half is a motion profile. They're combined when you run a test.

Fields

Field	Unit	Meaning
Max force	N	The test stops if sample force exceeds this
Max velocity	mm/s	Velocity ceiling for moves in this test
Max displacement	mm	The test stops if extension exceeds this
Sample width	mm	Cross-section width — used for stress (σ = F / (w·t))
Sample thickness	mm	Cross-section thickness
Serial / name	—	An identifier for this sample/material

Limits are enforced by the firmware

Max force and max displacement aren't just UI hints — the firmware stops the running test if the sample exceeds either, raising a warning notification. This protects both the sample and the machine.

The width and thickness define the cross-sectional area used to convert force into stress, and the gauge length (captured at run time) converts extension into strain — that's what produces the stress–strain curve in the run viewer.

Saving, loading, importing

• Save sample profile stores the profile in your data folder so it's available later and appears in the load list.
• The list of saved profiles lets you load a profile back into the editor or delete it.
• Import .sp loads a profile from a JSON .sp file (interchangeable with saved profiles). See the file formats reference.
• There is nothing to send to the machine from here: when you start a test, the app writes the selected sample profile to the machine for that test.
• The save button shows Saved ✓ when it worked, and leaving with unsaved changes asks first.