Settings for Tweak at Z?

[Edel 5]

Hi,

yesterday i spock with someone, who told me that i shall use that plug in for small objects, becaue i had this effect,

So he told me to reduce temperature a the last layers...

But which settings, i have no idea, shall i use here?

[yellowshark 153]

That may work but I have no experience of using the plugin. But I suspect it will not. The problem you have is that as you approach the top cone your layer time is not long enough for the current layer of plastic to cool before the next layer is laid down. To fix it...

a) make sure your fans are running 100%

b) print at least two copies of the model concurrently - Cura/tools menus/all at once. You may need 3 or 4 of them

c) set your minimum layer time to 10 - Cura/advanced tab/COOL minimum layer time

d) turn on z-lift - Cura/expert menu/open expert settings/COOL tick cool head lift

[yellowshark 153]

...oh to print more than 1, right click the model in cura and select "multiply object" which will then let you input the number of copies

[yellowshark 153]

What is your layer height, print speed and extruder temp. ?

[Edel 5]

normaly i print in 0,06 or 0,1,

temp is then 210C

a - is on full speed

b - this i dont understand, why shall i print more, then i need?

c - ok this is now on 5 --- i switch it.

d - this was of, i switched it on now

[Dim3nsioneer 558]

This is what I do: I check my print with gcode.ws. I then identify the layer where the print speed drops to about half of the intended velocity due to the minimum layer time. On that layer I use the TweakAtZ plugin to switch down something like 10 degree. You can also distribute the change to e.g. five layers (no. of layers used to tweak).

Here you have the documentation of the plugin.

Edited January 9, 2016 by Guest

[yellowshark 153]

You need to print more to increase the time it takes to print a layer - extra models to print (concurrently) and movement time between the models. Yes you can just print 1 and with z-lift wait for 9.5 secs before printing again - but you may well suffer from filament dribbling from the nozzle and being deposited on your next layer - but by all means try it if you want to, it may work OK.

Dimensioneer's idea is a good one but I do have some caution in that it takes time for the extruder temp. to drop and stabilise so I am not sure how effective it will be.

You did not say what your print speed is? I suspect that irrespective of Dimensioneer's point oyur are printing too hot, which will help your cause. With 0.1 you probably should not be above 200c. I print .15 at 30 or40mm/s using 190c max and I suspect that 40mm/s itself may be too quick for that model, unless it has been scaled up in size - if it is what I think it is I would be printing at 20mm/s with a temp. down to around 180c, nor more than 185c