Pick-two is machining's rule, not printing's. End-of-arm tooling, chassis, frames, housings: printed in days, lighter than aluminum, at a fraction of machined cost, with no mold to pay off. And when a job belongs in metal, we say so.
Machined aluminum EOAT eats your payload budget, slows your accel and decel, and turns every crash into a capital event. A printed end-effector does the same job at a tenth of the weight — and when it breaks, the file is the spare part.
Weight saved on the end-effector is capacity returned to the robot — bigger parts on the same arm, or the same parts on a smaller, cheaper robot.
Accel and decel are limited by what the robot carries. Cut the tooling weight and the same program runs faster — or the same cycle runs gentler, for longer robot life.
When a machined-aluminum gripper crashes, you're waiting on a toolroom rebuild. When a printed one crashes, it's reprinted overnight at a fraction of the machined cost, and the line runs in the morning. Design the tool as the fuse: the gripper breaks so the robot doesn't.
Waterjet end-effector grippers. 35 lb → 3 lb. 85% time / 94% cost reduction vs machined.
Quick-change vacuum-gripper mount plates for high-speed packaging automation. 25% of the cost of their CNC-milled approach, running 80 pieces per minute with toolless changeover across four robots.
A machined chassis revision is a work order and a wait. A printed one is a build plate and a night. Brackets, standoffs, and cable guides consolidate into the frame member itself: fewer fasteners, fewer failure points, faster assembly.
What bolts together can print together. Mounting bosses, wire channels, and sensor seats become geometry, not hardware.
Change the geometry Tuesday, frame starts printing overnight. The structure iterates as fast as the code does.
Less frame mass means smaller motors, longer battery, gentler dynamics. The savings compound down the whole bill of materials.
Dexter, a 7-axis robotic arm with a 3D-printed structure, supplied to NASA, GoogleX, and Toshiba. Moving the design to printed parts took the build from 800 components to under 70, cut costs 58%, and dropped assembly from a week to a day — with 50-micron measured repeatability on a printed-part robot.
Published engineering case study - Source: Markforged
Actuator housings, motor mounts, encoder carriers, belt covers, dress-pack guides. The geometry every build needs and no catalog stocks — and the parts a mold would never pay for at prototype and short-run quantities. Motors, gears, and bearings stay bought parts; printed is everything that positions them.
Housings and mounts printed to your exact motor, encoder, and bolt circle. Not the nearest standard bracket plus shim stock.
Every internal part rides the same overnight loop as the frame. The whole robot iterates at print speed.
EOAT, structure, and internals off the same printers, the same quote console, the same week.
Open-source torque-controlled quadruped from NYU Tandon and the Max Planck Institute: structure and actuator housings FFF-printed, roughly 2 kg, with a higher power-to-weight ratio than most quadrupeds at any price. The design is now sold commercially as Solo 12. Printed structure isn't the compromise; it's how the performance was reached.
Published research platform — their numbers, not ours.
Carbon-fiber nylons (PA6-CF) where stiffness is the job. Polycarbonate where impact matters. PPS and PPS-CF where the cell runs hot or chemical. Anything bolted or clamped gets metal in the bolt path — heat-set inserts and compression limiters — so preload runs through steel, not creeping polymer.
And we'll tell you no when polymer is the wrong answer: long cantilevers under sustained load, precision reference surfaces, anything where steel's stiffness is the actual product. A tool that fails at your customer's line costs us more than the order.
One gripper finger or the whole frame stack. Send the STEP file and we come back with weight, price, and lead time — typically same day.