colorblind-first robotics material choice

Robot Material Selector

A first-pass cockpit for comparing density, stiffness, strength posture, and evidence receipts before a design owner chooses the real load case.

metal polymer CFRP

Every family uses color plus shape, texture, and direct labels.

part picker

Choose the robot part

Boundary: this page teaches tradeoffs. It does not approve a design, certify a part, or replace a measured coupon test.

Ashby scout chart

Specific stiffness is the trap door

Steel, aluminum, and titanium sit surprisingly close in stiffness divided by density. Weight does not fall for free when the member is stiffness-limited.

Points are teaching priors with receipt posture, not procurement or design data.

comparison cards

What the scout read says

Property receipts live beside the page as /matsci-material-selector.receipts.json; the cards inherit their receipt ids from that manifest.

CVD visual gate

No color-only meaning

Release requires grayscale, deuteranope, protanope, and tritanope screenshots with family labels, mark shapes, stroke patterns, and text still readable.

Receipt packet: /matsci-material-selector.cvd.json. Release remains withheld until screenshot hashes are attached.