How Compatible are CC Print Cores on UM3 (with S5 Feeder Upgrade)?

[polygonfuture 12]

Hi all,

TLDR:   
Got an upgraded UM3 with S5 feeders.  

 

-Will CC print cores work out of the box?  
-Will it function natively as any other print core or are there specific workflows I should be aware of with this setup?  
 

Long Version: 

So some of you may remember about two years ago CarlosK and I put together a document posted here for upgrading UM3 feeders to S5 feeders to get the S5 flow sensors.   Those feeders have been doing great for the past two years. 

Now they've been run-tested and have the benefit of abrasion resistance, I am finally getting around to upgrading to a CC print core for my modified UM3.   

 

I want to print NylonG and NylonX materials from matter hackers and just purchased a 0.6 CC nozzle for my UM3.

 

What can I expect the workflow of CC print cores on UM3?
 

 

Edited May 19, 2023 by polygonfuture
Clarity

[polygonfuture 12]

Bump

[polygonfuture 12]

Anyone?

[Gero 54]

It is important that the gear on the extruder motor has also been changed. Only the extruder housing will not be sufficient. 
In addition, the CC Printcore is not compatible with the UM3 as standard. You would have to find a way to adapt the configuration file. 
I believe that otherwise the UM3 will not accept the CC Printcore. 

[Enigma_M4 119]

Hi,

I guess the printer will accept the CC core after firmware-adaption (see your document), but I don't know how to deal with it in Cura. I'm just enjoying the flow sensors and have no experience with the CC cores.

Regards

[polygonfuture 12]

On 5/19/2023 at 12:01 AM, Gero said:

It is important that the gear on the extruder motor has also been changed. Only the extruder housing will not be sufficient. 
In addition, the CC Printcore is not compatible with the UM3 as standard. You would have to find a way to adapt the configuration file. 
I believe that otherwise the UM3 will not accept the CC Printcore. 

I do not think this is correct.  The gear on the extruder motor does not come into contact with any abrasive material.   

Only the feeder gears within the extruder housing themselves come into contact with abrasive filament.  If you upgrade your feeders to S5 you are good.

[CarloK 203]

On 5/19/2023 at 9:01 AM, Gero said:

It is important that the gear on the extruder motor has also been changed. Only the extruder housing will not be sufficient.

This is not true. Inside the feeder housing is everything needed for the filament transport, the only external component is the stepper motor which is similar in all current Ultimaker printers.

 

The UM3 firmware is old and from before the CC-core release, but I don't expect problems in that aspect, the printer will accept the printcore.

 

What will be a problem are the material definitions; these consist of two parts:
1) A file on the printer with compatibility settings, temperature (for material change and probing) and a bunch of settings for the Material Station.

2) Slicing parameters in Cura

 

The printer files from 1) are fixable, but the major material tweaks are in the Cura slicing from 2) which I have not enough info for to fix. 
Not tested, but the simplest tweak would be to have the UM3 identify as an S3 printer. Then the printer will accept all S3 compatible materials and PrintCores and in Cura you can slice correctly.
On the printer you have to modify just 1 line in the configuration file:

In /usr/share/griffin/machines/9066.json change "Ultimaker 3" to "Ultimaker S3" and reboot the printer (for how-to see this thread)

The S3 has a slightly larger build volume, so in Cura modify the S3 printer dimensions by copying all settings from the UM3 printer (Cura menu Settings/Printer/Manage printers and then 'Machine Settings')

[Gero 54]

Oops, a mistake on my part then. 
I have only ever cleaned the extruder housings and not changed them. I thought until now that the extruder gear sat directly on the motor shaft and was not changed when the extruder housing was upgraded. 

[Enigma_M4 119]

2 hours ago, CarloK said:

This is not true. Inside the feeder housing is everything needed for the filament transport, the only external component is the stepper motor which is similar in all current Ultimaker printers.

 

The UM3 firmware is old and from before the CC-core release, but I don't expect problems in that aspect, the printer will accept the printcore.

 

What will be a problem are the material definitions; these consist of two parts:
1) A file on the printer with compatibility settings, temperature (for material change and probing) and a bunch of settings for the Material Station.

2) Slicing parameters in Cura

 

The printer files from 1) are fixable, but the major material tweaks are in the Cura slicing from 2) which I have not enough info for to fix. 
Not tested, but the simplest tweak would be to have the UM3 identify as an S3 printer. Then the printer will accept all S3 compatible materials and PrintCores and in Cura you can slice correctly.
On the printer you have to modify just 1 line in the configuration file:

In /usr/share/griffin/machines/9066.json change "Ultimaker 3" to "Ultimaker S3" and reboot the printer (for how-to see this thread)

The S3 has a slightly larger build volume, so in Cura modify the S3 printer dimensions by copying all settings from the UM3 printer (Cura menu Settings/Printer/Manage printers and then 'Machine Settings')

I think @CarloK has earned the "solution"-patch

[Jasonjason 6]

You can reflash the cc core from a cc to aa if it gets really upset about the core label - it’s easy think there is a guide on the solex website on how to do. 
the  printer does not really care, or really need to j ow what core you have, as all the extrusion settings come from cura