Author Topic: Doubt in Support - CURA  (Read 3005 times)

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Offline SKY KALAI

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Doubt in Support - CURA
« on: September 29, 2021, 02:46:54 am »
Hi guys I had a problem with support. I'm using Chiron printer, PLA material(190Deg, 50Deg) Speed - 100mm/s, Support - Build plate adhesion.
In CURA for both Everywhere and Build plate adhesion The support material stick together to the printed part. It's very hard to remove |O. Sometime the main parts also broken or damaged. I just Google it and watching Youtube videos with the term of "support material sticks with printing part". But I didn't get anything (maybe I don't know the exact searching term). Before buying printer I just watching some Youtube videos, they Separated the support material very easily, But I can't.  Is any solution for this problem? :'(. If available please teach me . Any Links, Videos, Pics, or Comments are very helpful.


Thanks In Advance :)
 

Offline dunkemhigh

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Re: Doubt in Support - CURA
« Reply #1 on: September 29, 2021, 11:42:27 am »
Don't know about Cura but my printer/slicer allows two different styles of support. One is pretty much full support, which you'd use if you have a different material for the support stuff (it's dual-extruder, so something water soluble would be used for support, say). The other is tree-like so you have branches which end with a point contact which is easy to snap off. I think Cura has the tree style, so perhaps check that you're using it.
 
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Offline SKY KALAI

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Re: Doubt in Support - CURA
« Reply #2 on: September 29, 2021, 02:53:40 pm »
Thanks for replying Mr.Dunkemhigh :)

My printer is not a dual extruder. I saw a some youtube videos about water soluble support, that was more interesting (PVA is expensive :'(). May be it's a SLA. what I'm wondered is in Ender 3 , a man printed a part in it with complex support. After printing he can able to peel the support material very easily. But My printer why dont do this :'(. typically there is no mistake on printer. what input as I given to print, that must be a output. or anyother firmware problem in it |O. I'm using PLA material, I got parameters from google (all3dp.com). Still I don't know where I make mistake. I do the same in ABS, I got same result. This is the  problem only happened to me means mistake on me. there is no software for Anycubic. First I talk to them and let you know:)

My parameters: (terms used in CURA)
Quality                      = 0.2mm
Infill                          = 25%
Temperature              = 190Deg (Filament), 50Deg (Bed)
Support                     = Touching Build plate only
Speed                        = 100mm/s
Build plate adhesion    = skirt (all used)

My English is very poor. Sorry for that, I will improve myself. :)


Thanks again Mr.Dunkemhigh. :)
 

Offline dunkemhigh

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Re: Doubt in Support - CURA
« Reply #3 on: September 29, 2021, 03:40:47 pm »
Quote
After printing he can able to peel the support material very easily.

Sounds a lot like when I do a raft - it is several layers covering the entire model base (plus some more). A raft for the model to sit on. The first few times I did it were a big pain since it took forever to chip the raft away from the model, and even then I couldn't be sure I'd got it all off (same material for model and raft). Then I found the trick: the model touches the raft only on point contacts (that is, not laid down as a normal layer but sitting on little dabs of material). If you get a knife in there and slash it the right way it comes of cleanly in one piece. Maybe your supports just need removing the right way...
 
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Offline thm_w

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Re: Doubt in Support - CURA
« Reply #4 on: September 30, 2021, 07:36:38 pm »
No point in talking to anycubic or cura, you want to figure this stuff out by yourself.
There are tons of support settings to play with. Save your existing settings so you don't screw something up and lose those. I would try the tree support as mentioned as well.

https://all3dp.com/2/cura-support-settings-optimize-your-supports/
https://support.ultimaker.com/hc/en-us/articles/360012612779-Support-settings

You didn't post actual support settings, but I assume they are default. Default density is 15%.

 
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Offline HobGoblyn

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Re: Doubt in Support - CURA
« Reply #5 on: October 01, 2021, 07:18:35 am »
Most of us suffer support issues when we first start.

Maybe this vid will help?

https://youtu.be/owgUmQao2ME
« Last Edit: October 01, 2021, 07:21:56 am by HobGoblyn »
 
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Offline SKY KALAI

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Re: Doubt in Support - CURA
« Reply #6 on: October 02, 2021, 03:47:55 am »
Thanks for reply thm_w

My support density is 15%. whenever I gave a 10% the layer was peeled off. Just now I put it on printer. I just go through your link, thanks again for sending link.
 

Offline SKY KALAI

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Re: Doubt in Support - CURA
« Reply #7 on: October 02, 2021, 03:49:14 am »
thanks for giving link hobgoblyn . I will let you know after watching video and printing.
thanks
 

Offline SKY KALAI

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Re: Doubt in Support - CURA
« Reply #8 on: October 03, 2021, 04:54:11 am »
Same thing happened  :--

I don't know where I make mistake. I do 7 Iterations. But failed only. I just make a simple T with support. As you can see in below picture (T letter). The violet colour layers added. In my first try that layers are not there. So That might be a problem. after watching some Youtube videos, I used there values (Ender 3) [all values are not suitable for all printers, but same stepper motor, so accelerations, jerks are same, that's why I use.] for my printer, then only violet layers appeared. Before I printed I decided it will work. But it won't. I just attached values of I used. After printing some parts, I finally decided problem with my printer. My bed was adjusted well.

In my print there was a parting line, but very hard to remove that. sticks strongly. May be cooling is the problem. One day  just cleaned my extruder. So I removed the 2 fans. May be I interchange the fans port. So Fans working reversely. Today I will change the fans port and make a print.

thanks .
 

Offline dunkemhigh

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Re: Doubt in Support - CURA
« Reply #9 on: October 03, 2021, 12:06:07 pm »
With those supports maybe you need to slide a knife in there to break the bonds, if there is any room. However, the kind of support I was suggesting is illustrated in my quick demo attached. Here there is only point contact so easy to break (kind of - you need to first break one that will allow the others to bend and snap). Your kind of support I would expect only if the support material is different to the model material. Since that's not the case for your setup, those supports are inappropriate.

Sorry I can't tell you what settings you should have - as I said before, I don't use Cura.
 
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Offline SKY KALAI

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Re: Doubt in Support - CURA
« Reply #10 on: October 04, 2021, 03:42:54 am »
I didn't use tree support yet. I will test by today with tree support.
Thanks
 

Offline thm_w

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Re: Doubt in Support - CURA
« Reply #11 on: October 04, 2021, 08:10:41 pm »
You may have some significant over extrusion and warping.
Have you calibrated the printer yet, specifically the flow rate?

https://teachingtechyt.github.io/calibration.html#flow
https://teachingtechyt.github.io/calibration.html#esteps
 
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Offline SKY KALAI

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Re: Doubt in Support - CURA
« Reply #12 on: October 05, 2021, 03:33:19 am »
Not now. I calibrated it long time ago. I will do it once again. I will go through your links, thanks for helping me.
 


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