Electronic Engineering Blog

Logitech M570 Wireless Trackball – infuriatingly close to being a good device.

After decades of working with computer mice I have repetitive strain in my right wrist. It’s not too bad, but it means that if I use a traditional mouse my wrist quickly becomes very sore, with pain right up to my elbow.

I’ve found that using a thumb-operated trackball is much better and doesn’t generate any pain at all, but there are few of them around. I’ve been using the Logitech Wireless Trackball M570 recently, which I got from Curry’s stores. It is so close to being a great product, apart from one tiny, but infuriating defect:

The switches under the buttons wear out very quickly – I mean within 6 weeks of using it. The left button is now very twitchy. It often double, and triple-clicks when I’m trying to single click, and selecting text or doing drag and drop is just almost impossible.

I thought maybe I just had a bad one, so I bought another (from Amazon this time), and it worked great for the first few weeks, but now it has gone the same way.

Of course, being an eletronics engineer, I had a peep inside. The switches for the right and left buttons are the same, so I swapped them and the fault has gone away again, or at least it has moved to the right-click button, but I can live with that for now.

Problem is, I can’t actually find any other thumb operated trackballs.

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