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All the laptops are second hand, so it's possible that the issue could be a simple failure (like a bad USB connector or a cracked solder joint or PCB).Though you did say you tested with a different port...Did you try on battery or with a different PSU? Arduinos and ground loops are quite a common occurrence (USB ground, DC ground and AC earth should never be treated as the same thing). At a minimum this can cause data interference. At its worst, it can lead to the USB cord heating up due to the current flow.
On Sat, 14 Apr. 2018, 19:49 Conor Maher, <conzy...@gmail.com> wrote:
Ok good news.--Somebody ran a cut this morning without issue, I then ran a test cut and it worked but subsequently disconnected and I couldn't connect again.I have swapped to the laptop that was connected to "Laser Cutter V2" and it seems to be able to establish a serial connection to Marlin much much faster. I've been running some test cuts in card without issue. I'm not sure if its some kind of IRQ / port conflict on the other machine.Conor
On Saturday, 14 April 2018 14:52:31 UTC+10, Conor Maher wrote:Hi Guys,I noticed its hard to get a reliable connection to the Laser Cutter. When I was initially on-boarded it was mentioned that it can have trouble establishing a connection. Last night it went from connecting after 1-2 attempts and completing a small job. To not connecting at all / losing connection during the cutting process. A much shorter (30cm) "gold plated" USB cable seems to have helped slightly so I thought it could have been a noise / signal strength issue but even then I could not complete a successful cut later in the evening. I tried resetting the laptop, power cycling the cutter different ports etc.Can anyone point me in the right direction? Is it Arduino powered? Can I talk to it over a console just to test basic connectivity etc?Today I will try connect to it with another laptop just to rule that out. I certainly don't want to do anything that could make it worse!Thanks!Conor
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