Jump to content
Ultimaker Community of 3D Printing Experts

Recommended Posts

Posted · Tower in SF45

Hi all,

I've recently decided to try out the tower plugin in SF45 in an effort to reduce stringing. I am very very happy with the results.

I was printing at 0.1mm layer height and I set the maximum tower height to 10 layers. The reduction in stringing was very significant, though I think it would also vary depending on the model.

However, the tower plugin seems to be doing something rather unintelligent.

Upon finishing the first tower/island, the head moves to the next and the platform rises 1mm (or the head drops 1mm depending on your perspective). So far so good.

Then a layer is printed but instead of dropping the platform by 0.1mm and printing the next layer, it drops to the height of the previous tower/island (downwards 1mm in this iteration) and rises back to the next layer where it's suppose to print (upwards 0.9mm).

This pattern continues, i.e., drop 0.9mm, rise 0.8mm, print layer, drop 0.8mm, rise 0.7mm, print layer, drop 0.7mm, rise 0.6mm, print layer, and so on...

Not sure if I'm getting the point across here but this seems very inefficient and sometimes causes stringing within the tower/island itself which normally shouldn't happen.

Anybody else have the same issue?

  • Link to post
    Share on other sites
    Posted · Tower in SF45

    The tower plugin is not used very often, and VERY dangerous. If you have more then 2 towers it can move the head trough a tower while moving from one tower to the next.

    I've used it once, but I didn't find the results very good. But that was at my early days.

  • Link to post
    Share on other sites
    Posted · Tower in SF45
    The tower plugin is not used very often, and VERY dangerous. If you have more then 2 towers it can move the head trough a tower while moving from one tower to the next.

    I did a quick test, printing 16 cylindrical pillars (4x4) each with a diameter of 5mm and a height of 10mm. The pillars have a spacing of 5mm and are placed on top of a 2mm thick base.

    The pillars were printed in the following order:

     

    10  13  15  166   8  11  143   4   7  121   2   5   9

     

    So the head definitely moves trough other towers while moving from one to the next, but no collision like what you said.

    One thing I forgot to mention in my first post, because the platform repeatedly moves up and down while printing a tower/island (other than the first one), there is significant blobbing since Z motion is not nearly as fast as X-Y motion.

    So while there is significantly less stringing, there is also significantly more blobbing. As it is now, stringing is replaced with blobbing, which is why I'm wondering the purpose (if there is indeed one) of the repeated up and down motion?

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • Talking additive | The 3D printing podcast
        Why should we be the only ones asking questions? Join us and ask Jabil all your questions on September 22nd 5pm CET
          • Like
        • 3 replies
      • Ultimaker masterclass: Optimizing your Ultimaker Cura workflow
        Save your seat for either broadcast on September 23.
        What will you learn?
        · Best practices for iterative print preparation and every lesson you should learn from each print
        · The right way to use per-object settings and when they are most useful
        · Easy-to-use resources for anyone who wants to develop their own printer definitions, plugins, or print profiles
        · How to optimize print profile settings and whether to “keep” or “discard” changes
        · When is the right time to export your drawing from CAD? (Based on Ultimaker Cura’s surprising power as 3D control software)
        · And a whole lot more tips and tricks!
         
        How can I join?
        This free masterclass will take place twice:
        1. 11am CEST (5pm SGT, 5am EDT)
        2. 5pm CEST (11am EDT, 8am PDT, 11pm SGT)
          • Like
        • 0 replies
      • Do you use 3D printing at work? Let us know
        It doesn't matter if you are using 1 Ultimaker or 10, there is inspiration in everything. We're looking for ...
        • 1 reply
    ×
    ×
    • Create New...