satellite internet disruption

[James Cleary]

Ok after pounding my head against the wall for a while, I decided to try something. The USB cable that came with the laser was 10 ft long so I changed it to a 6 ft cable and the problem went away. Too much bleeding through the longer line? Anyway thank you one and all for your help, hopefully that is the end of it.

[Scott Marquez]

Thanks for sharing what the "fix" was, I get real tired of people coming hear asking for help then never reporting back. This could really help any one of us when we are chasing a problem, and it's fairly cheap to swap out a cable to see if that fixes it.
Thanks again,
Scott

[AL Ursich]

Fantastic !!!! Fixed...

Thanks for sharing the fix.

AL

[Dave Stevens-Vegas]

If NOT, then why on earth would ULS think your sat internet is causing your problem? "Radio waves coming in from the line"? Seriously? The only radio waves are those hitting the antenna. And there's FAR more electric goings-on happening inside your laser that would affect it's operation before any low voltage current passing thru the coax to your modem ever would...

It wouldn't necessarily be the sat radio signal, in fact it's pretty unlikely. However, as others have said interference from low quality power supplies, cabling or poor shielding can cause issues like this. Depending on the application the distance spec for USB is either 3 meters or 5 meters but there are other factors involved such as the USB host side of the circuit. Solving the issue by switching out the cables (assuming the system worked properly prior to the internet install) indicates a bit more complex electrical/radio interaction. Good to see he did this and is back up and going.

Electrical systems and/or circuits can act as both transmitters and receivers of spurious radio and/or power emissions either via compromised cabling or circuits. That's one of the things that makes some of these issues (and it's not strictly about laser engraver/cutter) difficult to solve. A somewhat similar issue can occur in CNC plasma where the grounding structure of the system can cause havoc with the host computer of the machine. That's one of the reasons that devices are required to get FCC B approval to be used in a residential app. Even with a Class B device that's no guarantee that something like cheap cables, dodgy electrical system/connections or other environment issues won't contribute to cause an issue.

[Dan Hintz]

The USB cable that came with the laser was 10 ft long so I changed it to a 6 ft cable and the problem went away. Too much bleeding through the longer line?

Could have been poorly shielded internally, not the proper twist ratio for the data lines, etc. A poor cable can reek havoc with a HiSpeed line.

[Lee DeRaud]

If NOT, then why on earth would ULS think your sat internet is causing your problem?

Because the ULS tech was bored and the machine in question was an Epilog?

[Glen Monaghan]

A poor cable can reek havoc with a HiSpeed line.

Well, that............ ^^^^^ stinks ;^)