PlaneWave Instruments
1819 Kona Dr., Rancho Domingues, CA 90220

PlaneWave Instruments introduces the L-500 Direct Drive Mount ($18,000). This single-arm fork mount can operate in equatorial or alt-azimuth configurations, and is rated to support up to 200 pounds of equipment (including its own CDK17 and CDK20 telescopes). The mount incorporates axial-flux direct drive motors, providing no backlash or periodic error, and can slew to objects at speeds of up to 50° per second. Both axes include high-resolution encoders for precise pointing accuracy when operated with the included PlaneWave Interface (PWI4) control software. Additional features include through-the-mount cabling, and a dual mounting bracket, allowing users to mount a second telescope outside of the fork arm.'s New Product Showcase is a reader service featuring innovative equipment and software of interest to amateur astronomers. The descriptions are based largely on information supplied by the manufacturers or distributors. Sky & Telescope assumes no responsibility for the accuracy of vendors statements. For further information contact the manufacturer or distributor. Announcements should be sent to Not all announcements will be listed.


Image of Cosmic Ray

Cosmic Ray

November 13, 2017 at 9:48 pm

Kudos to the makers of a direct drive mount at a reasonable price. However, is flex (particularly of large telescope bodies weighing over 200 pounds) not a concern with the design and implementation of single arm fork mounts?

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