Quote from Craftware Team on 2021-11-15, 11:07

Dear Stefan,

There are 3 different travel types in the Craftware Pro at the moment.

• Basic travel: every travel is considered basic travel unless categorized as something else
• Non-Crossing Far Travels: Travels that do not cross the perimaterand  are longer than a specified threshold (you can change it too, but the default is 10mm)
• Crossing Far Travels: Travels that crosses a perimeter and are longer than a specified threshold (you can change it too, but the default is 3mm)

Each travel can have it's own settings like feedrate, retract, prime, z-hop, fan, etc.. that you can set.

 

The retraction can be changed in many places.

• At the Extruder overrides: the extruder can describe what is the optimal retract-prime length for the extruder (~1mm for a direct drive extruder, and ~5 for a bowden extruder)
• After that the Filament can require the change of these values, so there is a Factor.
  • By settings 100% the extruder values remain intact
  • By setting 0% the retract and prime is omitted
  • By setting a different factor value (e.g.: 150%), or constant value (e.g.: 2mm) the Extruder setting can be overridden
• Finally, at the strategy it can be overridden. It can be done generally at the Base Parameters, or specifically by any other condition (e.g.: Perimeter Area Type)

Please note that it is practical to keep the retract and prime as the same value.

In your case you want to have a good Filament Profile for PET-G, and use these settings for the PET-G only. So I advise that you change the retraction and settings there. (we updated the filament settings as well, so if you reset your settings to the default at the settings, you can use them. Your PETG will look like the one in the attachments.

We don't have coast like they do in Cura, but we offer a wipe that is another trick to eliminate stringing.

And now about your print. 🙂
The petg is a tricky filament. The quality of the material is really important. Make sure that you start with a dry spool.
There are good summaries here:
How to Succeed when 3D Printing with PETG Filament | MatterHackers
3D Printing PETG: 5 Simple Tips on How to Print PETG | All3DP
Best PETG Print Settings – Simple Guide | All3DP

So the basics:
- Hot Build plate (80°C for our default profile)
- Reduced fans (50% for our default profile)
- You can increase retract primes (changing the provided values)
- You can lower the retraction speeds (adding corresponding bindings at the filament binding manager)

That hairy surface would be there regardless of the retraction settings. It looks like the filament is not dry enough - I would start with a drying step. After drying, try to print a temperature tower to decide the optimal temperatures for the best quality.

Finally, the fan, and the bed temperature would have an effect on that hairing. If this occurs on the higher levels too, then you can even reduce the filament flow too.

Best Regards,
András

Quote from Stefan Seele on 2021-11-15, 20:17

thanks a lot Andras that was very helpful