News

One of the best things about running 4QD is seeing all the projects that our customers are involved in. This picture is from the Warsash Superyacht Academy and shows their fleet of training vessels. Featuring our Pro-120s and DNO-10s

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I had to share this picture of Michael F’s Bay Cruiser for no other reason than the simply outstanding colours!

It’s got a 2.5kW motor running at 36V and is controlled by a 4QD-300 with a water-cooled heatsink, and a closed loop fresh water cooling system.

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Francis Servieres sent us this video of his loco running under radio control. It’s the first time that we know of that this has been allowed in France – well done Francis!

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The Guys at the Broads Authority sent us this picture of a Kapf Solar boat that they have re-powered using 2 of our 4QD-300X controllers.

Should make for some lovely days out on the water!

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Is this a mini monster truck, or a monster mini truck?

Either way it’s a great piece of engineering and a totally new take on what to do when the kids say “Dad, can you build us a car please?”

A water cooled 4QD-300L is fitted to deal with the high currents that this beast needs.

Here’s a sneak preview of our soon to be launched Softstart. This is a small motor controller stripped down to the basics that gives a progressive start-up ramp to eliminate the large torque spikes that occur if a motor is switched on instantly via a relay or switch. We’ve designed this using a small microprocessor which means that the ramp time is configurable, and also given it a couple of other inputs so that it can be used for a variety of other simple switching tasks. We’ll be making the code available to allow [encourage?] experimentation.

Here’s a lovely rendition of an early Renault Voiturette that a customer has built. It’s using one of our Pro-150s driving a pair of electric scooter motors.

Here’s a prototype electric trials bike that a customer brought in today. Really powerful and very light, it’s using a Lynch motor and one of our 4QD-300s which we are modifying to give the required throttle response.

Here’s one of our Pro-150s driving the turret ring gear on a pretty serious looking Humvee. It’s a challenging application as it has to change direction rapidly, and the EMI and physical environments are hostile.

Seeing as how we’d melted our air cooled test load, we knew that we needed something that could handle some really high currents. Here’s a quick video showing how we built a water cooled dummy load.