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Posts posted by kmanstudios

  1. 20 minutes ago, geert_2 said:

    For sealing seams, maybe you could also make your own custom gaskets? Print a mould, and pour silicone in it, the kind of silicone that is used for, well, mould-making. Be sure to smooth the layer-lines of the mould, otherwise removal of the silicone will be difficult. Silicones come in various hardnesses, from flesh-like up to tire-like.

    That would be the 'have to do everything' approach 😂


    I am not that good 😉

  2. As @GregValiant noted, there were parts of the model floating about. That created the shadow profile. You can see the parts here:



    But there are a couple of other parts to this that make this a not so good model. First off, it has multiple parts to this instead of being one cohesive mesh. This is the first piece I found that was separate from the main mesh:



    When I deleted that, I still found another piece just floating over the main model:



    Once that final piece was deleted, the model was a single mesh and watertight. I do not know Fusion, but this is a list of the problems the final model had. And, yeah, it was a huge scale.

    1. Use what you are comfortable with and....
    2. slowly dabble in new materials that are available in the width that works for your system.

    Also depends on what is available to you by way of outside sales.

  3. I gotta tell you, that simple answer gave me the best "follow the link" set of information I have had in a long while. 🙂

    Found the paints and saw some really cool stuff as a result. Found a great tutorial on how to use it, found YOUR really great review of products 🙂 I now know what I need to save up for (besides filament LOL) with the very interesting paints he has made.


    Really had to laugh at the way he got to making some of his pigments in respect to Anish Kapoor's shenanigans.


    Have you tried to 'tint' the chrome so you can get some nice  colored 'chrome' (like a shiny Christmas ornaments)?


    Also, did you smooth it first or was just a really good print you painted?

  4. I have These three bottles that I made from UM PP and they have held colored water for a while without a single leak. I printed these just before the Christmas before my surgery, so...wow...3 years(!) They were printed using standard settings.



    The blue one fell over and the coloured water leaked around the cap. This would require a soft (cork is the only material I can think of right now) gasket that would clamp down tightly when the cap is put on. They sell premade gaskets and would be easy to incorporate.


    Red Bottle is logo'd "K-Bottle", The blue is "Tokah-Cola" done in the coke logo style and the green bottle is just plain. But, these liquids have sat in these containers since I made them.

    • Like 1
  5. This model cannot be fixed in its current 'object' structure. Hopefully I can explain this, so bear with me.


    I opened the model in my 3DSMAX and ran an 'STL Check'. This is a very simple toll that can analyze the structure for many defects. This is what I found upon just starting the process:


    Turquoise boxes show the errors. The blue arrow shows the top part that cannot connect to the cylindrical object. This is because the inner cylinder is a manifold object itself.


    As you can see here, the box is proper walls with a single edge that Cura is capping trying to make it a manifold object. The obliterates the interior cylinder. The blue arrow points to the void and the purple arrow shows the separate manifold object.




    The slightly shaded area is the manifold 'double wall' floating inside the box area.



    I made a very quick model that shows how it should have been done.

    I started with a box. Then made a separate chamfered cylinder and subtracted that from the box. I came out with single walls that are manifold across the entire structure. Contrasting the original model with the double walled cylinder.  This has a single wall that caps all positive surfaces and leaves the negative void to do its job (whatever that design feature is for)



    Here I removed the top part of the box to show the contrast between the original model and the proper model.


    The red edges are the open surfaces that can connect from a single wall to another single wall. The original model had a separate manifold object inside the non-manifold box.


    This shows what the same area of close up from the side looks like in a proper set of walls: it is not a double wall....



    So, the upshot is that the original model cannot be printed or fixed in its current shape. I do not know what package you used, but I cannot imagine any program that will not allow you to subtract one object (say the cylinder) from another (in this case the box). These are simple boolean operations that allow for this specific type of construction.


    Feel free to ding me if I have not made anything clear. I can follow it, but that is not saying much 😆 I will be happy to try and confuse you some more 🙂 

    • Like 3
  6. Fundamentals of modeling....seems to be a continuing issue. Not modeling pertaining to programs, but the fundamental issues that arise no matter what program. Non-water tight, too thin holes, useless voids, tolerances for tab-and-slot type of engineering, ball and socket...things like that?

    • Like 1
  7. Yeah, the model is very well made. 👍  It occurred to me a bit belatedly that I am on an older version of Cura. I just got back online for the first time in a long time so I have to catch up to firmware and software, so it may just not be backwards compatible on the project file.


    Hopefully someone who is more up to date can help with the project file 🙂 Sorry I could not help there.

  8. I checked the model separate from the project file and it is a really good model.

    In Cura (opened the project file, Did not recognize anything machine related) and got this warning:

    UnknownMachineType.jpg.6bdb58d9c1524e14470663072686dbfc.jpg 😞 


    Sorry about that, but sliced it anyway and this is layer 1 in what I would say could be considered as a generic slice as it follows all the geometry properly. It is not a really uique pattern.



    I do not know what the model is for, but it has voids in it that could weaken the part. Here is an image with the voids shown in the preview mode and then sliced up to a point to demonstrate the thin walls and not much infill. I do not know if this would be a problem or part of the design itself.



  9. 31 minutes ago, PaulK said:

    Thank god for hot air rework stations

    I use mine now for that purpose. Fine control over temperature and small focused stream of air. That is all it is good for me now 😄 I certainly cannot do any tight welding or re-work. At least for now...hope to be able to in good time. 😊

  10. Once I can afford some PVA I have a print I want to do that needs it because of the delicate nature of the design. It was one of the last designs I did before surgery and could still sculpt reliably....


    I was thinking about @fbrc8-erin when I painted the snail creature. I know she likes red and, well, I promised a red print a long while ago. The funnly thing is that some of the BBs and lead shot bounced into the infill areas, so they rattle a bit if you shake it 😛


    • Thanks 1
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