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prusa3d / PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
https://www.prusa3d.com/prusaslicer/
GNU Affero General Public License v3.0
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Cut function needs option to leave items stacked not both on the table #2056

Closed joegchurch closed 5 years ago

joegchurch commented 5 years ago

Version

_Slic3r PE 1.41.3+ WIN64

Window 10 Pro 10.0.17134 Build 17134

Prusa MK3 MMU2 unmodified.

MK3 3.60 MMU2 1.05

Behavior

Octopus_Cut_2019-04-01_1613

Is this a new feature request? Yes or more of a correction for an existing feature

No file. Problem occurred before slicing shown.

Mike4U commented 5 years ago

Thats what modifiers are for. I was going to say read the instructions.. but now I can't seem to find where I learned how to do this! Basically ins Slic3r with a MMU2 printer selected select your part and in the right menu select the box and select add modifier. You will be able to move it around and resize it and select the extruder for it.

joegchurch commented 5 years ago

Thank you. Seems more obscure than it should. Even you don't remember how. Could you not just make it an option when you cut? Simple. Make the mmu2 more valuable. At least to me.

On Mon, Apr 1, 2019, 19:55 Mike4U notifications@github.com wrote:

Thats what modifiers are for. I was going to say read the instructions.. but now I can't seem to find where I learned how to do this! Basically ins Slic3r with a MMU2 printer selected select your part and in the right menu select the box and select add modifier. You will be able to move it around and resize it and select the extruder for it.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/prusa3d/Slic3r/issues/2056#issuecomment-478789650, or mute the thread https://github.com/notifications/unsubscribe-auth/AXHC9bNEryZA2n-gLZgr32hMHcIpC8ogks5vcpxcgaJpZM4cWjk9 .

joegchurch commented 5 years ago

Now I am angry. So I should read some obscure documents because you chose to make Cut work counterintuitively? I expect my item to be in the same position after I cut as it was before. Or at least be given a simple option to leave it so. So then I could slice it. In two colors. Easily. On my MK3MMU2. From you. Same position as before, like Meshmixer Plane Cut does. Like SketchUp does. Likely like every other quality design program does. You chose to move the upper piece elsewhere. With no way to put it back. Moved without warning and without logic. And without choice. What were you thinking? And you defend this. Instead of fixing it. ColorPrint doesn't work well enough for MMU2. But at least it doesn't reposition the results. Slic3r PE should work better for MMU2. Not worse. It is your program. And your product. But only if you want MMU2 to succeed. Did I mention I was angry.

On Mon, Apr 1, 2019, 21:18 Joe Church joegchurch@gmail.com wrote:

Thank you. Seems more obscure than it should. Even you don't remember how. Could you not just make it an option when you cut? Simple. Make the mmu2 more valuable. At least to me.

On Mon, Apr 1, 2019, 19:55 Mike4U notifications@github.com wrote:

Thats what modifiers are for. I was going to say read the instructions.. but now I can't seem to find where I learned how to do this! Basically ins Slic3r with a MMU2 printer selected select your part and in the right menu select the box and select add modifier. You will be able to move it around and resize it and select the extruder for it.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/prusa3d/Slic3r/issues/2056#issuecomment-478789650, or mute the thread https://github.com/notifications/unsubscribe-auth/AXHC9bNEryZA2n-gLZgr32hMHcIpC8ogks5vcpxcgaJpZM4cWjk9 .

tkircher commented 5 years ago

Slic3r isn't a 3D modeling program. The purpose of a cut is to split an object into two pieces. Leaving one floating in the air makes no sense. If you want your model to be two different colors for MMU, use the correct tool.

joegchurch commented 5 years ago

And what would that correct tool be? Certainly not modifiers: "Modifier meshes are one of the most advanced features of Slic3r."

On Tue, Apr 2, 2019 at 5:50 AM Thomas Kircher notifications@github.com wrote:

Slic3r isn't a 3D modeling program. The purpose of a cut is to split an object into two pieces. Leaving one floating in the air makes no sense. If you want your model to be two different colors for MMU, use the correct tool.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/prusa3d/Slic3r/issues/2056#issuecomment-478925213, or mute the thread https://github.com/notifications/unsubscribe-auth/AXHC9UsxMqj_FaHzVdxdqhsGBsKAyqGXks5vcyfigaJpZM4cWjk9 .

joegchurch commented 5 years ago

The purpose of a Cut to me is so that I can print on MK3MMU2 in two colors. The top part would not be "floating in air" but be where it should be (and was before) on top of the lower piece. Cut should work just like when I use Add to load a single object (.obj, .stl....) having multiple parts. Slic3r correctly pops up: "Multiple objects were loaded for a multi-material printer. Instead of considering them as multiple objects, should I consider these file to represent a single object having two parts?" Works very well and so simple. Too back Cut does not. And you seem not to care about make the MMU2 work well.

On Tue, Apr 2, 2019 at 7:15 AM Joe Church joegchurch@gmail.com wrote:

And what would that correct tool be? Certainly not modifiers: "Modifier meshes are one of the most advanced features of Slic3r."

On Tue, Apr 2, 2019 at 5:50 AM Thomas Kircher notifications@github.com wrote:

Slic3r isn't a 3D modeling program. The purpose of a cut is to split an object into two pieces. Leaving one floating in the air makes no sense. If you want your model to be two different colors for MMU, use the correct tool.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/prusa3d/Slic3r/issues/2056#issuecomment-478925213, or mute the thread https://github.com/notifications/unsubscribe-auth/AXHC9UsxMqj_FaHzVdxdqhsGBsKAyqGXks5vcyfigaJpZM4cWjk9 .

bubnikv commented 5 years ago

Hello @joegchurch. I am the lead developer of Slic3r PE. The two guys, @Mike4U @tkircher are just trying to help you, I suppose they are our customers or just happy users of the Slic3r PE on alternate machines.

We certainly do care about our products, I hope it is clearly visible from the amount of work we are putting into the Slic3r PE development, just check the release logs and dates https://github.com/prusa3d/slic3r/releases

Thank you for your opinion on how the cut tool should work. Please note that there are currently around 600 issues open, and each of the issue is important to someone.

Mike4U commented 5 years ago

@bubnikv I was just trying to help. I am a MK3 MMU2 owner. Maybe this isn't the place for me to comment, especially since I'm possibly wrong. Am I helping or hurting the situation? I'm not mad or anything, just trying to decrease your work load. Maybe I increased it? If so sorry.

joegchurch commented 5 years ago

I apologise. I thought I was interacting with someone at Prusa. My error. I find it unnecessarily hard to do a simple simple Cut between layers in Slic3r PE so that I can color, slice, export and save the resulting stls positioned at the correct heights. If I use Add with 2 or more stls at the same time Slic3r asks me if they are parts one object. If yes they are put onto the table stacked (or side by side or whatever), as they were originally in Meshmixer, Sketchup or whence they came. If no, they are treated as multiple independent objects with each arranged flat to the table. Perfect. If I use Cut on an object,Slic3r PE makes the horizontal cut part easy. But then without asking it takes the two pieces of what was previously one object and arranges them as two unrelated objects each flat to the table. There is no option with Cut as there is with Add to choose multiple parts of the same object (which clearly they were). They should ask the same question as with Add. Then I could Add a single part object, Cut it horizontally wherever I want, choose multiple parts of the same object, choose the colors for each of the parts, slice, export the g-code and print on my MK3MMU2 in multiple colors. No muss, no fuss. I could also save the parts in their proper positions as separate stls. Then I could reload the stl files again later as parts of a multipart object, change the part colors and slice again. Likely I could Cut one or more of the parts to increase the colors. That would be perfect. Too bad I (and you) can't. I see no good reason why not.

On Tue, Apr 2, 2019 at 1:03 PM Mike4U notifications@github.com wrote:

@bubnikv https://github.com/bubnikv I was just trying to help. I am a MK3 MMU2 owner. Maybe this isn't the place for me to comment, especially since I'm possibly wrong. Am I helping or hurting the situation? I'm not mad or anything, just trying to decrease your work load. Maybe I increased it? If so sorry.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/prusa3d/Slic3r/issues/2056#issuecomment-479096434, or mute the thread https://github.com/notifications/unsubscribe-auth/AXHC9RAU-N0tAK3_NG6Ck0tAK537YTgMks5vc41igaJpZM4cWjk9 .

bubnikv commented 5 years ago

@Mike4U

was just trying to help.

We are always thankful when a community member helps another community member. This takes some of the burden off our shoulders, and we are left with more time to fix and improve the software.

bubnikv commented 5 years ago

By the way, this issue is a duplicate of https://github.com/prusa3d/Slic3r/issues/1966 Therefore I am closing this issue, keeping https://github.com/prusa3d/Slic3r/issues/1966 open.