I finally had time today to download and test the new support system. I downloaded the Release version, not the release candidate. I have spent the last 3 hours messing and testing stuff with it and comparing to the old version, 2.19.1.10116.

When I use larger pillar (3-4) settings it does not generate the needed supports and leaves whole areas without.

When I use a small pillar (1.5mm, 2 still not small enough to get good supports) setting it does not connect the pillars so some supports are useless. On one model it added in an interface layer in mid air (no support), though I get this on occasion with the old version as well. But with some slight tweaking to my model the support this version generated was near perfect (Will Print this model). The old version did about the same for supports.

Furthermore the slicing time now takes longer than the old version. At least for the few objects I tested. On average I would say about 50% longer but it is hard to tell exactly as I have to run on different machines. Smaller supports the longer it takes to generate.

And since the 'Support Everywhere' option has been taken out I can not even use this for my prints. I know I can manually add supports in to take care of the issues I have but that defeats the purpose since the old version works better for the most part.

Before the following I did a couple small test prints that didn't take too long with no problems.

(Note: This is the model mentioned previously about the supports)
Now here is what PISSED me off. I went to print a large detailed model. I Sliced it and checked it before printing. I made NO changes to anything and hit Print, and it went to reslice it. It took 18 mins to slice it the first time, now another 18 mins to reslice it. The old version took about 13 mins to slice, and it never resliced anything unless I made a change.
Finally went to print but it had pull up on the brim so it was a failed print. AND THEN IT WENT TO RESLICE AGAIN!!!
This is a MAJOR EPIC FAIL for a release version.

On the brighter side it uses noticeably less CPU/Memory, as previously my sliced parts would have issues as I moved around making sure it created supports it needed. This version is MUCH better.

Also, the slicer appears to have a better algorithm as the pattern was nicer in the new version than the old (at least the first layer before it failed on me and....).

Great, thank you!

Most of the situations I have had to modify the STL are like Eyeballs, and places where the two intersect multiple times. By the time I separate the objects I can just as easily merge them. This is especially the case when 1 object intersects itself.

I love all of the 3d printable items that are out there to download, but some of the real nice looking ones are a pain to print correctly because of this issue, and a few others.

This only applies to STL's that have merged objects. MC handles everything well with it's own objects.

Where 2 objects intersect it creates a negative space. The slicer appears to think this is an exterior space instead of an intersecting objects that is actually another interior space.

I have been manually editing any stl's I have downloaded that have this situation, once I figured out what was happening, merging the two objects creating a single interior space. I have also used MC Primatives when I can, which also solves the issue.

I can see reasons for having valid negative space.
Does or will MC have the ability to ignore negative space in the objects without me having to change the STL's?

Thank you for the response.

"or set up a profile for testing"
The profiles themselves are not the issue. It is the 'Slice Settings' other than the profiles. No matter what profile I have selected, or change to, any Setting I change is updated in near real time, 2 or 3 seconds at most.
If I change a Quality Profile on my Dev computer it changes the profile on my Print Computer and all the settings with it. If I manually change any other setting it changes on the other computer.

I can see the Quality and Material Saved Settings being saved and automatically synced. But having the Slice Settings that are manually changed is a pain. This should really be an option and not automatic.

I have left my Dev computer signed out of MH and exported/imported all the settings for material and quality into it.

I slice and check prints on a different computer than I print on fairly often. Normally this does not bother as I am not testing anything on the 'Printing' Computer, but on occasion...

When I change settings on my Dev Computer in MC 2.0 while signed into Matter Hackers it will also change the settings on my Printing computer since it is always signed in.

Why is it doing that? And how can I stop it, other than not signing into Matter Hackers on my Dev Computer?

Thank you very much.

Im trying to run GCode from Matter Control that I am slicing on a different computer.

When you first start with Matter Control and load a GCode file and click Print, it will give a warning box saying that you are running a GCode file that may not be for the Printer. It has a 'Do not show this again' checkbox. I clicked the check box after a few times so this wouldnt show up since I am slicing everything with Matter Control and not worried about what it is doing.

Now I do not have the warning box. And when click Print the Matter Control window flashes very quickly and then does nothing else. I can continue on like I had done nothing. It does not start heating the extruder or bed so that tells me it hasnt even starting running the GCode.

I load the file by 'Open' just like I open a STL. It will load up the 2D window just fine, and the settings for the print as expected.

So I guess an easier question would be Can I change the setting somehow to get the checkbox turned back off? I can not find this in the settings anywhere.

Latest version of Matter Control. I clicked off the warning box when printing from gcode. Now whenever I try to load a gcode to print it fails. I click print and the screen flashes and then does nothing else.

How do i fix this?