Multiple color changes

[defontesjim 0]

I'm looking for both instruction, and ideas.

 

I have found a Purdue University drink coaster on Thingiverse that I'd like to make for my daughter in law, a Purdue graduate.

 

Looking at the summary on that website, I see color changes at layer 11, layer, 17, layer 22, and layer 26.

 

Cura allows filament changes via "Extensions", Post Processing", "Modify G code", and then "Enable Filament Change".  That would allow me to change the filament color at layer11, but I can not figure out how to make changes for all of the additional needed filament changes that would be required.

 

Is this possible, and how do I do it?

 

Thanks in advance

[Slashee_the_Cow 480]

Just use the dropdown on the left to select the same script again. You can have multiple instances of the same script.

[defontesjim 0]

 

So, if I understand correctly, make a filament change at layer 11, back out to the "modify G code" option, select the next layer change, so on and so on?

 

Or do I have to go all the way back to the "extensions" tab and start over from there?

 

Now that I know it's possible, I'm just looking for clarity on how to actually accomplish this.

 

Thanks.

 

[GregValiant 1,409]

"Filament Change" depends on your printer understanding the "M600" command (my Ender does not).

Do a test with a short model (a calibration cube is good) and change filament on a low layer.  If the printer stops and waits for you to change filament it's all good.  Then you can abort that print.

 

As Slashee was saying, use the "Add Script" button as often as is needed.  You would then set each instance of Filament Change to pause at a different layer.

[defontesjim 0]

Thanks to all of you.

 

I'll make an attempt on this tomorrow, and hopefully the issues will be solved, and I'll have learned something.

[GregValiant 1,409]

My personal record for pauses in a single print is 8.  There were 6 color changes, 1 to insert nuts, and the last was to stick a steel re-rod into it.  I had to stay home and babysit while the print was running.  Then there was the other side.  The stars are glued into pockets.  Its' in PETG and has held up for 2 years in the Florida sun.

Now I can find the car at Walmart.  (I have to remove them to go through a car wash.)

 

Slashee did did some fancy work (on something similar to a coaster) using TPU.  Of course it's got a cow on it.  She can brag about that one.

[defontesjim 0]

 

Fins UP!

[Slashee_the_Cow 480]

2 hours ago, GregValiant said:

My personal record for pauses in a single print is 8.

Mine is 12. All are colour changes. I'm not using thirteen different colours, there's just bits of some of the colours at multiple heights so I swap back and forth between a few of them a few times.

 

2 hours ago, GregValiant said:

Slashee did did some fancy work (on something similar to a coaster) using TPU.  Of course it's got a cow on it.  She can brag about that one.

Not TPU. I've only done a few multicolour prints in TPU because it's harder to find a decent array of colours (plus I don't need a bunch of colours of PLA and a bunch of colours of TPU).

 

The fancy work I think he's referring to is this:

A close enough to completely flat multicolour print. Very much a "don't try this at home if you don't have bovine spongiform encephalopathy" thing. The experimenting refining the process probably contributed my nozzle ending up looking like this:

(If your nozzle ever looks like that, change your nozzle.)