Unable to maintain target temperature with big nozzle

[paboman]

I have tuned the PID to 280°C of my volcano hotend with 1.2mm nozzle and 24v 40W heater cartridge.
Now I want to print at 40mm/s 260°C but the hot end is unable to maintain the target temperature because of high flow of plastic. (layer fans are Off)

Is there any work around ?

[dc42]

I've never used a Volcano, but here are some suggestions:

1. Use a silicone sock on the heater block.

2. Turn the PSU voltage up a little (maximum recommended for a Duet is 25V).

3. Get a 50W or 60W heater cartridge.

4. Use the lowest M307 dead time setting that doesn't cause temperature oscillations. That will help the PID react faster to changes in flow rate.

[paboman]

@dc42

1. Using the sock
2. I will try
3. ordered a 50W cartridge, never seen a 60W can you point me to a shop please ?
4. lowest value I can use is D3 for the dead time