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Topic: Problem with my china 3018 cnc (Read 3007 times) previous topic - next topic

ballscrewbob

After taking time to read up a little it is possible you might have corrupted the bootloader or there was none on there to start with ?

There are a few ways to re-install the bootloader but the easiest is to try and hold down the RESET button at the correct time during upload.

Quite often if that method fails it usually means you need an additional bit of hardware and that can range from another Arduino to a cheap dedicated ICSP device which is very cheap.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

Jeffjeffjeff

"hold down the RESET button at the correct time during upload"

Can you guide me step by step, i'm so new at this

ballscrewbob

Do you see that small magnifying glass at the top of the page.
I would suggest you learn to use it as I don't remember the exact details

However it goes along the lines of holding down the reset then uploading a sketch (yes I know I said DON'T we can worry about that later) and holding it down until it says "uploading" at which point you would release the button.

I would suggest using either the BLINK or MINIMUM example sketches in the IDE (yes you would need to use the IDE for this)

I suspect it is critical to get the timing correct so it may take a few tries.

Again use the search option to get better detail and search for "bootloader reset"

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

ballscrewbob

If that does not work for you then you might need an ICSP device (let google be your friend)

Its what I would use here and I have a few types and they have never failed me.

If you can get that far then we can move onto putting GRBL back on as its quite a simple process and we may as well upgrade you to 1.0 in the process.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

Jeffjeffjeff

the supplier reply my email today, he told me to upload an HEX file that she gave me using xloader apps, during uploading the blue light flashing and i don't know what is that and the apps hang and have to force to close.

ballscrewbob

OK go with the supplier support for now don't try mix the two and check each step CAREFULLY !
Sometime we try too hard and go too quickly and miss or forget something.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

ballscrewbob

Also check that you have enough user privileges on your machine and you might also have to turn of your security for a brief while to get some things to work.

BTW what do you use for security JIC that's where part of the issue lies ?

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

Jeffjeffjeff

what do u mean "BTW what do you use for security JIC that's where part of the issue lies"

ballscrewbob

BTW = by the way....JIC = just in case.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

Jeffjeffjeff

 the supplier also ask me to send back the board and they will replace me a new one i hope sooo..

planing to get https://store.arduino.cc/usa/arduino-uno-rev3 for my cheap CNC, what do you think?

im using avast, how can i check?

ballscrewbob

I would say hold off until you get your new controller.

Even if you got a UNO you would still need the driver shield (Have multiple variations here) and to be honest I prefer my machine with the supplied GRBL board.

Think you would be better off spending that money on some push buttons and limit switches.
Being so new to this I am almost certain you will need both of them at some point in the near future and they may well save you some problems with crashes !

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

Jeffjeffjeff

i don't think there much we can do now, looks like the board is an faulty board that can't do anything...

thanks

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