Motion Controllers

Optimal Engineering Systems, Inc. (OES), Van Nuys, CA, has introduced a new series of integrated motion controllers and drivers for 2-phase stepper motors. Available as 1, 2, 3, and 4 axes modules, the ICAD series controllers are ideal for NEMA 8 to NEMA 42 stepper motors. These compact 6 × 8 in. plug-and-play, integrated controllers incorporate high-resolution microstepping drivers for precise positioning. Other features include home and limit switches per axis, joystick interface, TTL/CMOS inputs and outputs, quadrature encoder feedback, and USB and optional Ethernet interfaces. The series is powered from a single power supply up to +48 VDC.

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Linear Actuators

Haydon Kerk Pittman, Waterbury, CT, has released a series of compact linear actuators. The MiniSlide series offers two motor options: a 21-mm, size 8 hybrid linear actuator, and a 20-mm, 19000 series can stack linear actuator. Nine different lead screw options are available ranging from ~0.3 to 8 mm, providing resolution down to 0.001524 mm (0.00006 in.) per step, axial forces up to 45 N, and accommodating stroke lengths of up to 150 mm. Four different lubrication options are offered as well as a rotary encoder feedback option. English or metric mounting hardware standards are available.

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Micro Servo Drive

A micro-sized PCB mount servo drive is now available from Advanced Motion Controls, Camarillo, CA. Rated to output 25 At continuous and 50 A peak, the FE060-25-CM digital servo drive uses miniaturized components combined with a PCB-mount form-factor. PCB-mount servo drives are installed directly into the machine’s PCB without any external connectors or cabling, giving system designers direct control over layout, connector selection, connector placement and number of axes. The mounting footprint is 38.1 × 25.4 mm with an installed height of 12 mm.

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Micromotor Winding Technology

Mirmex Motor, Mont-Saint-Guibert (Belgium) has launched a new method of manufacturing high-power density electric micromotor windings. Constructed from flexible printed circuits and developed using artificial intelligence (AI), the customizable micromotors are designed for use in high-performance surgical precision powered tools, active prostheses, and robotics. Instead of winding the yarns individually, winding topologies are created and printed on strips of flexible printed circuit board (PCB) material. Once wound, the overlapping layers form an electric motor winding. Coils can vary by size, patterns, thickness or interconnections of the conductors.

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Medical Design Briefs Magazine

This article first appeared in the January, 2021 issue of Medical Design Briefs Magazine.

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