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kmanstudios

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Posts posted by kmanstudios

  1. 35 minutes ago, marcus-7 said:

    Hey kmanstudios

    I am really surprised, first, that I got some help, and second, so many help 🙂

    I am quite new here, hence I do not know, in what language to answer.

    I asked in german, and got some answers in English.

    Reply in the language you prefer. There is always google translate 🙂  And helping is what we are here for. 😄 

     

    35 minutes ago, marcus-7 said:

    And your remarks are, I am afraid, all very correct. I have for sure done bad things with Boolean and other stuff.

    We all start somewhere. Mistakes are how we all learn. I am for one a jump right in and mess things up when I am learning something new. We will still be here to help. Sometimes I cannot help with a specific product, but the base knowledge is all the same. It is just procedure and what tool to click that can be researched when you get the basic idea on what to research.

     

    Edit: Modeling will be an invaluable task to learn as you will have to fix many things in scans as well as files you may download. I do not download much, but some models are just so 'spot on' that I would not really be able to improve with a model I made from scratch. And when I do make a print from a downloaded model, I will always post a 'make' on Thingiverse to acknowledge the maker's skill and effort. Sort of to appreciate their work.

    • Like 1
  2. 9 hours ago, GregValiant said:

    Just pay no attention if he makes a comment like "that head is screwed" or something equally awful.

    I resemble that remark! 😛

     

    OK, I was able to fix it. I can give you some general idea of what I found, but not how to apply it to Blender.

     

    There were some flipped faces and multiple edges. There was an abutment of the head itself and the base. This would not join properly in a boolean operation. There were also issues with the 'Screw thread part. I was not sure if you wanted the original thread height on the inside so I went with the firts.

     

    Flipped faces are a no-no when doing boolean operations. All the objects and their individual faces have to be facing either inside or outside. Though I would not know why someone would flip them to the inside (This would turn the object inside out), but the point is they must agree. Booleans on mesh objects are always picky and it takes not much to make them non compliant. This is why I choose to use a volumetric approach on objects and not mesh booleans. Volumetric objects boolean much easier. I was able to fix this in 3DS MAX, though I know that Blender can do it as well. You just need to research the right way to do this there.

     

    Fixed file:

    HeadScanFixed.STL

     

    • Like 1
  3. 1 hour ago, theoky said:

    additionally added support elements

    I have used placed supports for various reasons. Sometimes to physically hold a piece in places like a small pyramid underneath a part to hold it in place so it does not get knocked off the support structure. Like this:

    ManualSupportStructures.thumb.jpg.7c187b19cb966f9c71d7557a09964924.jpg

     

    In this case the character's butt got knocked off the PVA supports after two days of printing. 😬 The manual supports pinned key areas while PVA did the rest. That is when I added the manual supports. Manual supports were added after that fiasco. Got a nice print after that.

     

     

    Edit: They popped right off and then a quick X-Acto blade shave to do final cleaning. But they supports really just popped right off cleanly because it had such a low point of contact with the main body. I just shaved it off to make sure everything was contoured properly.

     

  4. OK, I took a look and this is what I found:

     

    The PLA/PLA combo is not really needed. If nozzle 1 & 2 are using the same material, there is no real gain.

     

    However using PLA as support has different tolerances between the support and the model itself. More gap for better removal of the supports. There is no harm in using the PLA, just know it has different requirements than if you used PVA as the support such as this file I saved for you so you can see the difference. Just load and hit slice and you will see it works.

    UMS5_1756110576_UMS5_conicalcupaeroarmwithchamferPLA_PVA.3mf

     

    Now, if you wish to use PLA as the support, just raise the model about 1mm from the buildplate. It will slice with the support all around the object as needed.

     

    You may have more questions and here is where to get your follow up. 🙂

     

    • Like 1
  5. Have you checked the feeder tension? If too much it will grind up the filament, too loose and it does not grab enough to feed the filament.

    Check to see if the core does not require a hot/cold pull.

     

    That is all I have right now off the top of my head. If I think of more I will amend this post 🙂 

  6. That is a very broad question. Please let us know a type of example of what you want to create so we can guide you better. There are a lot of choices of program types depending on what your final intent would be. 🙂

     

    And welcome 🙂 this is a cool place.

  7. 2 hours ago, GregValiant said:

    I heard that Pythagoras personally told @kmanstudios the answer, but Kman doesn't want to admit that.

    Yes, I am that old. And no, I do not kiss and tell 😛 

     

     

      

    2 hours ago, GregValiant said:

    I'm going to have another cup of coffee now.  There will be a spoon to stir it.

    Nv3.gif

    • Like 3
  8. 36 minutes ago, tombogan03884 said:

    My career was spent machining so I know there are things "everyone knows",

    but only after years of experience.  😄

    You have come to the right place 🙂 Welcome!

  9. This is a prelim test of the character "Eternity" from Marvel comics.

    Eternity1.png

    Illustration ^^^^^ (not mine)

     

    So I started to make my own 3D version. I am trying to keep the 'graphic' quality by painting in false hilites. This is just a test and I will be doing more before I print the full sculpt (about 17" Tall.

    Eternity_01.thumb.jpg.a4f36dd7d5a730e98a4a21e54aa77182.jpg

     

    Eternity_02.thumb.jpg.a3c86ac9feae49a8e6a4732772880f88.jpg

     

    Eternity_03.thumb.jpg.f7f5c6d68dc1ffe595610827bb87fda6.jpg

     

    Still trying to figure how far I can take the paint job to try and keep the spirit of the character.

    • Like 2
  10. 3 hours ago, MadNess69 said:

    I thought UncleDaddySwiss and I had the same type of prob

    His problem is different because the text should be inset into the model. Something is capping across the holes. It may be a slicer setting or a model issue that is causing his model to do what it is doing now. I am just waiting for the .3mf file to see.

  11. 6 minutes ago, MadNess69 said:

    How does Cura know what orientation my models are in Blender

    One thing at a time: This is not cura reading the blender orientation. It is Cura reading the x,y,z coordinates in the exported file. It is all about how you export things.

     

    7 minutes ago, MadNess69 said:

    .....and why is it printing the hidden geometry

    It is not printing hidden geometry. It is trying to print the two objects intersection. Cura sees the objects as two different things because it sees the full geometry that is residing below the plane you inserted it into.

     

    To get it to print cleanly you need to do a 'boolean-union' operation in blender then export the final piece as a single set of faces and not intersecting faces.

     

    11 minutes ago, MadNess69 said:

    So basically Cura is printing 2 full models and starting one inside the other. 

    yes, I just tried to explain more fully

     

    12 minutes ago, MadNess69 said:

    If I don't have the models in Blender in their proper places when I export each to stl, then Cura doesn't merge them right..

    Cura cannot know what your intention is. All things should be in proper places when exporting so Cura can read that x,y,z information.

     

    But, the model should be complete at export because Cura cannot do it for you.

  12. At the risk of sounding heretical, I do not use UM PVA much due to the cost. I use the Matterhackers MH build PVA. Dissolves much, much quicker, is not brittle at all and prints well. It does have all the other drawbacks of regular PVA though. Moisture issues, storage, etc. A spool of UM PVA is about $80 US and a 1 Kg spool of MH build PVA is about the same cost.

     

    I have found that the Breakaway material can work in some surprisingly delicate sculpts, but it really grabs onto the printing material it is supporting. It also works rather well to print the Breakaway at the main interface points and the (say...) PLA or TPLA in the middle parts of the support. (that is why you have so many extruder choices in the support tab).

  13. 4 hours ago, geert_2 said:

    a friend uses them a lot for cupcakes. But they are not left long enough to fade...   🙂

    😂😂

     

    4 hours ago, geert_2 said:

    What about textile colors?

    Rit Dye is a textile colour dye, so yeah, I would think so.

  14. 1 hour ago, geert_2 said:

    some people used food-colors

    Food colours are not light-fast, i.e. will fade. I can only remember seeing Rit Dye used.

     

    1 hour ago, Evavoo said:

    I run a 3D printing facility and this method wouldnt really make sense for the scale and quantity of prints id be interested in using the filament for.

    Yeah, you are right about that.

    • Like 1
  15. My next installment will have links to the types of metallic. chrome and chameleon powders to create different affects. I have almost finished the 'Fairy wings' project and will get back to regular posts about different prints.

     

    I did see your post of the sculpt you did. I can see a lot of potential with painting. 🙂 It is a very nice sculpt.

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