VRC31_053

Velocity RC Cars Magazine VRC_031

MAIN FEATURES SPECS Torque:  8.4 - 7.4 - 6.0V 141 - 128 - 110 oz. / in. 10.1 - 9.2 - 7.9kg / cm Dynamic Torque:  8.4 - 7.4 - 6.0V 256 - 227 - 190 oz. / in. 18.5 - 15.8 - 13.7kg / cm Speed:  8.4 - 7.4 - 6.0V 0.04 - 0.05 - 0.06 sec / 60° Input Voltage:  4.8V - 8.4V Gear Set:  Full Metal Dimensions:  1.57 x 0.79 x 1.06 in. / 40 x 20 x 27mm Mounting Height (Base to Mount Tabs): 0.72 in. / 18.4mm Weight:  1.92 oz. / 54.6g • Digital Magnetic Position Encoder (DPE) • Specifically Designed for 1/12- and 1/10-scale Applications ​ • Included Aluminum Vector Servo Arm ​ • Full Aluminum Servo Housing ​ • Element-Proof Design ​ • LP = Low-Profile Design ​ • Precision-Cut Full-Metal Gears ​ • ABEC5 Ball Bearings ​ • High-Voltage Capable ​ • High-Torque Coreless Motor ​ • 25T Output Spline ​ • Programmable via HotWire PC Interface ​ • Overload Protection Technology ​ • Thermal Protection Circuitry ​ • Low-Voltage Alarm (requires Hotwire, sold separately) ​ • Quiet, Efficient, Cool Operation ​ • HDAC: High Density Copper PCBs TESTING Installation was easy and straightforward. After removing it from the cool, matte-finish packaging, it was just a matter of attaching it to the mounting brackets in my buggy and screwing in a servo horn. At first I tried to find the endpoints manually by rotating the horn with my fingers to save myself some time repositioning, but this servo doesn’t need that and will rotate all the way around in both directions. After powering it up, I just took advantage of Tekin’s Digital Magnetic Position Encoder (DPE), so finding the center is done digitally. This feature also allows the user to program it to have a travel beyond 360º, and it can go up to five rotations in either direction. But my buggy didn’t need that much throw, so I just opted to set endpoints. Next step was to venture out onto the track. I could feel the speed and precision on the servo immediately; it felt instantaneous and precise. This is a concern when running a low-profile servo, since most low-profile servos on the market often have to compromise some performance to make up for overall size. The small size also means it comes in at a relatively low weight of 54.6 grams—perfect for balancing my buggy’s weight bias and keeping the overall weight down. Over time, I did make some driver mistakes that caused the buggy to tumble, with the front end taking most of the hits, but the Tekin T-120 just brushed them right off. Keep in mind that I wasn’t using any sort of servo-saver, and coming down awkwardly on one of the front wheels after a large triple would normally mean a trip back to the hobby shop. PROS & CONS PROS • Sturdy construction • Extensive list of new and innovative features • Low-profile design CONS • Pricey and now, good modern servos! WWW.VRCMAG.COM 53


Velocity RC Cars Magazine VRC_031
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