[Prime Tower Geometry Change?]

I'm currently nearing the end of a 2 day, close to full height build on an UM3 and the prime tower finally decided to give way after looking pretty shaky for the last 8 hours or so. I've got about an hour left of pulling filament out of the nozzle at the end of each "ghost" layer of the prime tower as to hopefully let the build finish successfully.

Anyway, the prime tower was already 20mm in size and I dont really have any desire to go up any further if I dont have to. So instead of enlarging the cross section, is there a way to change the prime tower geometry? For instance is there a way to change the Gcode to print a hollow square tube with wall thickness x that is 30mm or 40 mm instead of a solid square pillar? I have no familiarity with gcode so I have no idea.

Thanks!

[UM3 Compatible Small Diameter Nozzles]

Thank you for the info! That might work out just fine for me and I'm guessing .25mm would be sufficient.

I can't share the application but I am trying to print very small lattice structures. They printed to completion with the .4mm nozzle but there were holes and defects.

@Neotko any advice on the matter? What was your experience with changing the nozzle?

[UM3 Compatible Small Diameter Nozzles]

Thanks @SandervG! Glad to hear that they are in the works. If you can say, is it a matter of weeks or months?

Also if it is the better part of a year away, my employers might see it worth the risk of using a smaller nozzle on the AA core. Is there a conceivable way to make a smaller nozzle work on the AA core, or is there absolutely no chance of it working? We'd be prepared to purchase extra cores if necessary to determine the right configuration.

[UM3 Compatible Small Diameter Nozzles]

So I have been looking through the forum for info on smaller diameter nozzles (.25mm,.15mm) and its led me to a couple of sites with UM2 and UM2+ nozzles and I was wondering if those would also be compatible with the UM3.

If anyone has any guidance for me about which nozzles to buy from which site and if there any additional parts I would need to install them, it would be much appreciated. Also, any recommended settings for the smaller line widths would help as well.

Thanks!

[Nozzle Will Not Cool]

This very well could be the problem as i did just adjust temperatures on the system yesterday. The restart fixed things for now but I'll keep an eye on it after I change bed temp again. Thanks!

[Nozzle Will Not Cool]

The "wait a moment for Printcore 1 to cool down" progress bar on my Ultimaker 3 is frozen. I'm just going to restart the printer but this is not the first time this has happened. In general it seems like the cooling process is taking longer as well. Why could this be happening?

Thanks!

[Importing Custom Supports]

The thickness should be, at least, the size of the line width. Select the object, click on Per Object Settings and assign a small Line Width for that object until it slices it, but a 0.4 nozzle can only go down to something like 0.25 with some issues (you would need to play with mm3 to allow a constant flow of filament) a safe number is 0.33 for a 0.4 (at least that's what I do print every day)

 

Thanks! I appreciate it!

What do you use to make your custom supports?

[Importing Custom Supports]

Update: I just imported the supports again with a thickness of 0.1mm and it still didnt show up. It appears in solid view but when i go to slices its just the shadow of the supports. Is it something to do with what you're allowed to print with PVA? Is the software not allowing me to because I'm not using PVA/BB to print Cura generated supports?

Hello,

I am attempting to import my own custom supports generated in Magics from Materialize and merge it with my model. I am doing this because the majority of the model has a geometry that is self supporting by nature and I want to conserve time and material.

I was able to figure out how to merge models together in Cura and I have selected the model material PLA and my custom support material PVA on extruder BB. My issue is when I slice the model, I can no longer see the support stl, just the model. I am wondering if this is because the thickness I imported the support models at may be too small (0.01mm I believe). Could this be the issue or is there something else that is causing this problem.

Thanks for the help!