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STL file features


sonalipatil

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Posted · STL file features
1 hour ago, nallath said:

I don't understand what you mean, sorry. Could you be a bit more verbose? What do you want to achieve? Why do you want this? Do you have some pictures?

        What are the dimensional considerations operator should consider before selecting the values of any slicer parameter ? so that in we can achieve good quality print without any wastage of material and time.

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    Posted · STL file features
    3 hours ago, sonalipatil said:

            What are the dimensional considerations operator should consider before selecting the values of any slicer parameter ? so that in we can achieve good quality print without any wastage of material and time.

    There is no easy answer to this, sorry. To illustrate, you're asking something akin to "How do you cook a tasty meal" or "How do you make a good product".

    We do have some guides on what you should take into consideration, but there is not a single answer that I can give you. You can find them here: https://ultimaker.com/nl/learn/setup-to-success-3d-printing-guide

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    Posted · STL file features
    18 hours ago, sonalipatil said:

            What are the dimensional considerations operator should consider before selecting the values of any slicer parameter ? so that in we can achieve good quality print without any wastage of material and time.

    Thank you nallath

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    Posted (edited) · STL file features

    "What are the dimensional considerations operator should consider before selecting the values of any slicer parameter ? so that in we can achieve good quality print without any wastage of material and time."

     

    Designers that are familiar with material removal type machining processes need to understand the differences between machined parts, injection molded parts, and parts created using FDM.  I think the #1 difference is that the strength of an FDM part varies according to the layer directions and hence how the model is oriented for slicing in Cura.

     

    This part will get a velcro strap through the slot.  The sides of the slot will be weak as it will be printed using Silky PLA and layer adhesion will be poor and the loading of the sides will be in tension.  In this case it wasn't a question of dimension but rather of intended function.

    Knowing that, an astute designer (ahem!) will add features to mitigate the weakness.  In this case I added 2.2mm holes down through the weak points.  After printing; a piece of 1.75 filament gets super-glued into each hole.  This will both glue the layers together at the hole and provide a "non-layered" piece of plastic to provide additional strength in tension.  Although the holes will be accepting 1.75mm filament they had to be designed at 2.2mm because the molten plastic always wants to pull towards the center of a hole making the ID smaller than designed.  My experience shows that on my printer and using PLA that a 2.2mm hole will come out at about 1.8 to 1.9mm ID.

    In the end, it is important for the tech doing the slicing to communicate with the designer so each understands the others needs.

     

    Changing things is always cheaper before fabrication starts.

     

    Untitled.thumb.png.316103b1d85e7bccc6e0797e812b2de9.png

     

    Untitled1.thumb.png.d30b14643f10189d58779011e133b7b9.png

    Edited by GregValiant
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