Spine Print from Thingiverse
Hey, I apologize in advance - I'm a super noob right now. I have gotten the sample Prusa supplied models to print pretty well, but I now want to try printing something I found online.
https://www.thingiverse.com/thing:697686
So, I downloaded it then:
1) imported the STL into Prusaslicer
2) Scaled it down to fit the plate
3) Did Slice Now
4) Exported the g-code
My prints aren't sticking at all. The model looks like it has very very little contact with the plate. Does anyone have any ideas? I saw an option for "Supports" but I'm not sure if that's something I should try? Can any of you guys help?
Thanks!!
RE: Spine Print from Thingiverse
Yeah, you're going to need supports for this to print properly.
RE: Spine Print from Thingiverse
This image in the file set explains it all: enable Support on build plate only.
RE: Spine Print from Thingiverse
Hey thanks - I'm really new. I have played a bit with supports, and that's definitely a huge thing that helps.
Is there any modifications to the supports settings that you guys recommend? Some of my supports are a bit too attached and hard to break off. Is there an optimal modification that you guys suggest?
RE: Spine Print from Thingiverse
Hey thanks - I'm really new. I have played a bit with supports, and that's definitely a huge thing that helps.
Is there any modifications to the supports settings that you guys recommend? Some of my supports are a bit too attached and hard to break off. Is there an optimal modification that you guys suggest?
It's trial and error depending on the part. Some parts need close supports,other parts can live with a larger spacing. I almost always use the defaults because the time it takes to tune a single one-off part isn't worth the effort.
One trick though is to slow print speeds down to a minimum... let the plastic cool as much as possible between layers. But setting the interface contact distance to 0.2 mm might help on something like the spine.
RE: Spine Print from Thingiverse
Oh - one other place I do use to make changes, again very part specific, is the angle - Overhang Threshold - changing it to 0 allows the slicer to decide whats best, and sometimes setting the angle to low values like 10 degrees can help ... again, something to play with and 100% depends on what the part looks like.
RE: Spine Print from Thingiverse
I'll try the slowing things down setting.
Is there a good "how to use PrusaSlicer" manual? I am having real trouble finding something up-to-date. For example - I'll attach a picture. It's of one .STL file model. Is there any way in PruseSlicer to remove the red circled part? Or at least tell PruseSlicer to not print that area?
Thanks so much - I really appreciate all the help and advice. 
RE: Spine Print from Thingiverse
That slice position will fail -- don't bother trying. You need to lay the spine down as shown in the Thingiverse examples.
Search Slic3r.org and there's a manual that can help some - Prusa is copying Slic3r and making additions. Someday there is a plan to have a Plicer manual, but no time frame at present.
But to separate a part into it's shells, there are buttons across the top that split the part into parts or objects (if they are shells to begin with).
RE: Spine Print from Thingiverse
Easiest looks like this" scaled 35%
Or if you really want it to print vertical, 50% cut in half and lower part flipped:
RE: Spine Print from Thingiverse
So you're saying we need a brace for this back?
and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: Spine Print from Thingiverse
So you're saying we need a brace for this back?
No. I think he is saying he doesn't want it back. Either that or he needs a Chiropractor to fix his back.
But that was some time back.
LOL
RAH
I am the inveterate tinkerer. I can tink up most anything.