Monthly Archives: September 2021

Lightburn USB Issues on Mac OS X

Lightburn is the best software for laser editing, design and control, bar none.  But it always seems to have an issue on Mac OS X when you upgrade.  More times than not, when you upgrade Lightburn it simply will not output your design when you are connected via USB.

There seems to be an issue with the FTDI drivers on Mac OS itself which doesn’t like our Ruida controllers.  There are a couple of workarounds.  First is to take your file you want to engrave or cut and transfer it to a USB stick and upload it directly to the laser.  The other way is to connect your laser via its ethernet port instead of its USB port.  This works flawlessly ………. well almost.  I noticed that once I followed the directions provided by Lightburn that the laser was only recognized when WiFi was turned off.  I dunno about you, but I’d kind of like to use my computer on the internet while I’m sitting there watching my output and making sure nothing catches on fire.

The directions provided by Lightburn instruct you to get the IP address of your computer and then add that to the same subnet.  For example if your computer is, they advise you to add 50 or 100 to the last octet. (, or   This will give you wifi problems.  Let’s tackle this, shall we?

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Repair, Not Replace

I’m a big proponent of fixing stuff rather than replacing it.  The “new” home I moved to has a built in audio system in a lot of rooms and on the front and back porches and even a speaker way out in the woods on a deck.

The speakers on the back porch are all fouled up and only produce sound from the tweeter.  The outdoor speakers are all Polk Audio Atrium55’s which are discontinued.

Polk Audio Atrium 55

So, as luck would have it, so are the replacement speakers ( Part Number RD0756-1).  Can’t find them anywhere.

The successor to these speakers seems to be the Atrium 5’s which cost $250 at Amazon, Best Buy, eBay……….everywhere.

So let’s see how I deal with this………

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