Communication timeout - reset send buffer block and Error:checksum mismatch

LowRider CNC Troubleshooting
1

I’ve been using the Lowrider cnc for 4 years, using an arduino and repetier host.

Recently I’ve been getting the following problems:
Communication timeout - reset send buffer block

and
Error:checksum mismatch, Last Line: 5645

This is causing huge problems, as the machine travels to readjust itself, essentially cutting non-cutting travel moves.

I use a powered USB to control the machine from my laptop. In an attempt to identify the problem, I ran the exact same code from an SD card and it works fine.

So I think the problem is with my USB to the ardruino, but I don’t understand why this problem has just arisen after 4 years…

Any suggestions?

2

Do you plug and unplug your USB cable regularly?

Maybe you’ve worn out either the cable or the connectors on your Arduino or Laptop…

Try replacing the USB cable first.

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Closing old topics to limit spambots