After printing several plates with LW Filament in AMS slot 1, I want to print using a generic PETG filament in AMS slot 2 and select it as my desired filament to use for my next print.
So, on my printer, I unload slot 1 and load slot 2.
I then go to my computer to setup a new print with the intention of printing it with generic PETG.
I go through all the settings on my computer on the prepare tab, (quality, strength, speed, support, others, etc.
I then slice the plate, print plate, send and the printer will begin to do it’s thing.
However, before it starts to print, it will pause and go through the change filament sequence and change the filament back to slot 1 which holds the LW filament and proceed to print using that filament when I want to use the filament in slot 2, the generic PETG filament.
Can anyone provide some advice on what I’m doing wrong?
When you see the print window, do you see the AMS slot assignments?
Here, you confirm the choices you made from the Filament Chooser (Prepare Tab) against those in the printer’s AMS unit.
As you can see in my image, the predetermined colours can be changed if I wish something else or an unexpected match were made.
Sorry, I should have mentioned that I’m using the AMS lite version designed for A1 printers.
This is what I’m seeing. Screenshot by Lightshot
And yes, I’ve enabled AMS.
It doesn’t matter if you have the AMS lite or the AMS, the situation is the same.
The other really important thing to understand is the filament chooser (Prepare Tab - top left) is not directly related to the AMS/AMS lite. It is a means to add multiple materials you may or may not use in your model. The position of a colour or material here has NO relationship to your AMS lite (or AMS).
You can choose to duplicate the layout of your filaments within the filament chooser to match those within your AMS lite (or AMS) slots. But, there is no need to do that. If you do match them, there is no direct link between your deciding to do that and which materials get used.
The filament pool (your screenshot) is where you choose which filaments you wish to use within your model.
You have selected two yellow filaments. One PLA and one PETG.
When you go to print, as shown in my screenshot above, you will be presented with a colour swatch for each colour YOU chose from the filament chooser in the prepare tab.
It will try and match the filament you chose from the filament chooser when selecting colours for your model with the ones you have entered into the printer. If you are not using Bambu Lab (BL) filaments, you must enter the correct provider, type and colour into the printer (or Bambu Handy or the device tab in Bambu Studio).
Your screenshot shows
- eSun PLA
- Generic PETG
So, they are not BL filaments you MUST manually provide this information to the printer, using the screen, Bambu Handy or the device tab in Bambu Studio.
You say the Generic PETG is in slot 2 and LW filament (not sure what that is) in slot 1.
- LW PLA?
- Generic PETG
IF, this is very important, IF you selected your model, and changed the filament it should use to the one you have in your filament chooser, then when you go to the print window (my screenshot) you will see at least one colour swatch in yellow showing PETG at the top and A2 below it.
If you do not, then you did NOT change your model to expect to slice using the yellow PETG filament.
You do this, by either:
- Right-click the model (or part) when it is selected and using the Change Filament option
- Select the model (or part) and press 2 on the keyboard (as you have PETG yellow in the filament chooser slot 2).
Try printing again and see if you now see a yellow swatch with PETG above A2 below.
Important
Just because you change the filament assignment in the second position of the filament chooser (Prepare Tab - top left) it doesn’t mean when you go to print that your material will be selected.
The only important part is you select the correct type & colour of the material in the prepare tab for your model by selecting the model (or part) and assigning the correct filament choice.
Thank you so much for the in-depth reply.
I’m new to 3D printing and although your reply helped me immensely by putting me on the right track, I realize now that I should have been asking how to create a new custom filament profile for which there’s plenty of info available.
All still a bit confusing for a old timer newbie but I appreciate your info and effort.
Just a tad bit of additional info here, also. As long as you engage the filament into the gears of the AMS Lite and then select that filament during the prepare stage as @MalcTheOracle explained, you don’t have to use the buttons to unload the prior filament and load the one you want yourself - the AMS lite will do that automatically when the print gets sent to the printer.
Nothing in your original question relates to this need or your follow-up.
It was all about the sequence and selection from the filament chooser to the AMS lite.
I’m sorry to have bothered you but nothing that’s been suggested has worked so far.
As I alluded to earlier, I set up a new filament profile as you will see in the images, propagated it with the recommended settings from the Creality website and selected the number 2 spool for the AMS, loaded the filament and it’s still reverting back to spool 1.
BTW, this forum is being displayed in Thai script despite me trying to change it to English Screenshot by Lightshot
Screenshot by Lightshot
Screenshot by Lightshot
Screenshot by Lightshot
Custom filament profiles are entirely unrelated to your issue as far as I can tell.
As a test, change the colour of the filaments located in positions 1, 3 & 4 to anything other than yellow. Right now they are confusing things I believe p.
Click their colour square swatch and pick any colour, it doesn’t matter which, just something other than yellow, ideally choose a different colour for each, maybe red, green and blue.
When you have done this, is your model still yellow?
It is possible you have set your model to one of the other filament choices accidentally as there are so many yellows.
Take a screen shot of the print window, it will something like this, I wish to see the colour swatches shown below as white, red & blue.
Yes. My model is still yellow, but I do realize that the colours in the boxes are irrelevant as far as the print goes because the filaments are still yellow so the model will still be yellow as there is only one other colour on number 3 spool.
Number 4 is empty.
However, the model is now being displayed as the same colour as number 1 spool which is red which to me indicates the software will still revert back to number one spool. Screenshot by Lightshot
This getting worse. The custom preset set up has now vanished from the list.
Screenshot by Lightshot
The last screen shot I sent is of a popup that disappears when I move my cursor off it.
Excellent, your screenshots convo what I have been saying all along.
You change all the colours of the swatches and now that they are all different p, you can see your model is assigned to the red-looking one.
This material is PLA, you have to,d the slicer it needs P,A, but, you want PETG.
Select the model, press the number 2 key on the keyboard or right-click the model and use the change filament option to change to the 2nd entry the cyan PETG.
The print dialog I’ll never let you choose PETG for a part you told it needs to be PLA. They are incompatible filaments with different setting requirements that the slicer knows are incompatible.
Once you tell the model which filament you wish to use by correctly assigning it, the print dialog will stop showing PLA in the top portion of the swatch and instead say PETG, it will auto detect any matching PETG and you can manually change it to any PETG in from those available in the AMS slots.
This is what I said yesterday.
Sucess at last. Thanks again for your time and more so for your patience.
When I first got the machine, I had no issues using any filament I chose but after watching too many YouTube videos from “experts” I became confused, and info overloaded so hence the query.
So, keep up the great work in helping people out.
You are welcome. Do not forget to mark the question solved using the solved link next to the answer.
This way, others will not try to solve the problem, and others will know there is a solution if they have the same concerns.