timeout during pid tune

boelle

I changed to heat manager 3 and wanted to get the right PID numbers

i change to heat mangager in firmware and give command:

M303 S230 C8

copy of my config: http://pastebin.com/A9yjhEaJ</div><div>

what could be the issue here?

boelle

think i found the error.... thermal contact with the fins section on my e3d..

the fins where VERY hot.... will let it cool and create som distance

boelle

yep that was it.... just 1-2 distance does the trick

boelle

i look at this guide in how to go from PID to dead time....

i can understand that you set the graph for 1 min, and that you make 2 straight lines croos... but still not sure how to get the right dead time number

is dead time and P in PID the same?

Repetier

M303 doe snot work for dead time only pid.

Dead time is stored where P is stored for PID, but the meaning is different. Deat time P is the time between enabling heater and seeing a change in temperature curve, so it is simply a delay between changing heater and seeing the result.