Topics created by benkay

@benkay no sure what e3d are shipping, we have a good stock of 1mm thread so are not planning on changing any time soon.

In that case, I am puzzled!

You could check that the trigger height (which should be around -0.1mm) is the same at both sides of the bed.

255K is way to high try 25K (F25000). In my case the sound and the temp dropped a lot.

Note that I've directly connected the 1/8" ID Tygon tube to the metal tube, it reduce pressured area and reduce heat from the pump mechanism (the white plastic part)

If the temperature is generally stable then the most likely cause is that at certain points of the print, too much air from the print cooling fan gets directed at the heater block. This most often happens when the cooling fan first gets turned on (typically at the start of the second layer), but could happen later depending on the shape of the print.

Remedies include:

1. Use a silicone sock on the heater block if you are not using one already, and re-tune the heater after fitting it.

2. Make sure the fan is directed at the print, not at the heater block.

3. You may be able to tweak the PID parameters manually to get faster response. First check that with the hot end hot but the head not moving, the temperature is stable. If so, you can try reducing the dead time (D in the M307 command). Try 20%. Reducing D makes the PID respond faster to temperature changes; but if you make it too low then the temperature will oscillate. Test with and without the print cooling fan running. If the temperature shows signs of oscillating, increase D instead.

4. If all else fails, use the M570 T parameter to increase the temperature variation tolerance above the default 15C. OTOH if you get temperature excursions of more than 15C, you are likely to get printing problems.

HTH David

"Often when I cancel the print and re-home…there is lots of filament bunched up around the nozzle."

Is it extruding and not sticking while it's printing the first layer or rubbing the nozzle on the bed while printing and then relieving pressure when you raise the Z? If it's extruding and not sticking, you should try lowering the nozzle. If the nozzle is rubbing on the bed, you need to raise the nozzle.

Your 80% first layer height means you are starting at .16, this does not affect the extrusion rate.

The width of 110% will be 110% of your current extrusion width, this does change the extrusion rate.

When printing low layer heights, you may want to increase first layer height and width to allow it to stick better.

Confirmed fixed with the new PanelDue firmware…thanks David!