04 / Surface finish & robot stiffness

Eighty hours of polishing.
Because the robot chattered.

Robot-milled molds and trim parts ship with a chatter signature your CNC strategy never authorized. Same kernel that runs your 5-axis. Same finish — on the robot.

Bring a part with chatter we can't kill See the controls

[ Hero visual: tight macro shot of a milled
mold cavity surface. Left half — visible
chatter pattern (cusps, faint waviness).
Right half — same cavity, ENCY-planned
path, clean continuous finish. ]

"No robot is as rigid as a mill, and has a lot more backlash on every axis."
SkyeFire · robot-forum.com

"Just changing from Climb to Conventional cutting could change the cut your robot makes by millimeters."
SkyeFire · robot-forum.com

"The milling of round holes does not work very well. It will be more easter eggs than nice curves."
robotics-ikt · UR forum

The math nobody quotes for

Polishing labor is where bad robot finish hides.

20–80 hrs

Polishing time added per mold to chase a chatter signature the demo never showed.

$1.6k–$12k

Unbudgeted labor per part — at $80–150/hr — that came out of the quoted margin.

0.1 mm

Wall-thickness drift from robot deflection on a long cavity. Enough to scrap a $30k blank.

What changes with ENCY Robot

Four kernel-level controls. One clean surface.

Heavy-axis behaviour

Mark high-mass axes; the link planner minimises their motion and stages tool changes accordingly. Large robots stay stable through high-mass cuts.

Joint-space link planning

Transitions in machine-space shortest path — not Cartesian interpolation. Motion the robot actually wants, fewer direction reversals, less backlash.

True-solid simulation

Mill operations simulated against true solids — chatter zones and orientation drift visible before first contact, not after the polishing quote. docs ↗

Advanced Multi-Axis Control

Axes-limit, singularity avoidance, avoid-collisions-at-safe-plane. Stop the kind of motion that triggers chatter in the first place. docs ↗

Send the part you can't get clean. We'll run it through the kernel on camera.

30-minute screen share. Bring a STEP, a photo of the chatter, or a video of the cut. We'll either fix it — or tell you we can't.

Book a 30-minute demo See it on your robot brand

Eighty hours of polishing.Because the robot chattered.