Replacing A4988 Drivers with DRV8825 on Arduino Mega 2560 + Ramps

[Mjolinor]

So if you jumped out of a bedroom window every day for a year and didn't break a leg then one day you did break your leg you would assume your house had grown?

That is exactly the same scenario.

I use a Flashair SD card and connect over my home network.

I am not saying your USB is not at fault in terms of functional hardware but I am saying that your conclusion is not valid based on your input data.

[PyramidDave]

I had not thought about using a wireless SD card. That is an interesting way to print. Thanks.