Robo 3d firmware stops responding.

[bigwookiee]

I have a robo 3d r1 and when I try and print a large part with a raft the printer freezes up on the first layer after a few minutes with a "firmware failed to respond ...". Anyone else seen this behavior before? If so how do I solve it?

Thanks,

[javahigh]

I've seen the same thing on my Robo 3d. Sorry, I don't have a solution but you are not alone.

[JoeJ]

The "failed to respond" messages mean that the printer is literally failing to communicate. This is usually due to a crummy power support or a bad USB cable. If the power supply is bad, the voltage fluctuations cause it to stop responding temporarily. Bad USB cables can also corrupt the back-and-forth communication.

[javahigh]

Oddly enough, I've only seen this message while printing rafts. I'll change out the usb cable as well as try a print straight from the sd card. Thanks for the input.

[solution0]

I had the same exact problem and found out why it was doing this. In simplify 3D there is a connection timeout delay in the software that check for the printer response with every command. Doing a raft does long simple command that takes more than the timeout delay by default in the software which is 10sec. You can increase that delay in tools / firmware configuration / communication / communication timeout.

After increasing that time to 15sec my problem was solved for me

Hopes it helps!