Multi-Sensor Inspection Systems Offer Speed, Accuracy
The L. S.
Share




The L.S. Starrett Company’s large-format multi-sensor video measuring systems, which include the LF303, LF463, LF713, LF963 and LF1273 models, are available with vision, contact probe and laser scanning attachments. All feature travels from 12" to 50" along the X-Y plane and 8" along the Z plane. Capable of speeds in excess of 25" of travel per second and accuracy of more than 4 µm, the systems are designed to verify critical dimensions on complex, multi-featured parts.
Transports are driven by balanced linear motors that are close-looped to precision scales in all three axes and require no maintenance. The motors generate no heat and position to a small fraction of a micron, the company says. Other features include porous carbon air bearings for quiet, frictionless motion. The bearings require no lubrication or maintenance and provide repeatability greater than 3 µm. Moving axes are center-driven to reduce asymmetric thrust and eliminate the need for a separate slave scale. Also, all axes feature “tape scales” that are bonded directly to the machine’s granite structure. These scales feature quasi-absolute encoder markings to streamline the “homing” sequence.
Related Content
-
4 Ways to Establish Machine Accuracy
Understanding all the things that contribute to a machine’s full potential accuracy will inform what to prioritize when fine-tuning the machine.
-
Turning Fixed-Body Plug Gages Inside Out
Fixed-body mechanical plug gages provide fast, high-performance measurement for tight-tolerance holes.
-
Ballbar Testing Benefits Low-Volume Manufacturing
Thanks to ballbar testing with a Renishaw QC20-W, the Autodesk Technology Centers now have more confidence in their machine tools.