3DPrinting
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: or !functionalprint@fedia.io
There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml
Rules
-
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
-
Be respectful, especially when disagreeing. Everyone should feel welcome here.
-
No porn (NSFW prints are acceptable but must be marked NSFW)
-
No Ads / Spamming / Guerrilla Marketing
-
Do not create links to reddit
-
If you see an issue please flag it
-
No guns
-
No injury gore posts
If you need an easy way to host pictures, https://catbox.moe/ may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is 
Moderation policy: Light, mostly invisible
view the rest of the comments
Testing on a print means nothing. Just because one print works doesn't mean it will work on every print. If I understood exactly why there is a prime tower instead of purging for prime I'd know under what conditions it could be disabled.
Maybe it's a historical artifact from printers from 10 years ago. Maybe "build nozzle pressure" doesn't work as well if you aren't priming onto a surface that would create back pressure.
I'm sorry, maybe I'm not phrasing this correctly...
I never said, "test on one print". I said to test it. Test it on an object with many color changes, test it on a model with a ton of one color and only a small amount of another, test it with different infill percentages, test it on a prototype of something that's going to be really important so you know how it will work in the end.
Everybody is going to have their own specific answer as to what works well and what is and isn't necessary, the only way to find the right answer for you is to test things and figure it out yourself. The only way to get things 100% right 100% of the time is leave it how it is now and stop messing with it. Anything beyond that is going to vary on a case by case basis, and you'll only understand what settings to change when, if you toy around with test prints.
I have been printing for many years. I understand that, "what works on one won't always work on another". Which is why I find it odd that you seem to be looking for an answer that works for one person, and therefore must work for every person, for every print. The only one-size-fits-all is going to be the most wasteful in material and time (purge tower and purging filament). If you want to cut back on what the manufacturer/ slicer devs are saying "this will most likely work", you're going to have to do some experimenting yourself.
Without knowing why, I would be wasting time. I could be changing colors when the problem is an acceleration condition created by a part shape causing underextrusion.
The entire point of this forum is to gain knowledge that you don't already. Instead of answering any questions, you could just respond "Test it yourself."
I'm not asking what works but WHY a feature exists. Understanding why allows you to design parts correctly from the start instead of screwing around and then randomly getting a good result that you don't understand and therefore can't replicate under all conditions.
I suppose if you've somehow come to the conclusion that testing things does not provide useful information (how do you suppose the people you are asking your question to have come to their conclusions?), I won't try to persuade you otherwise. I'll continue screwing around with no understanding of what I'm doing, I guess.