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#3D STL conversion

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John Lindo All Messages By This Member #1849 Can anybody help. I have downloaded a STL file for slicing. Such a nice shape and style. I need to convert to a STEP file so I can draft in a hole. I have tried Free cad and Solid edge, I get so far then ??? and importantly a step by step guide of how it?s done. From the converted to STEP file I can use Mastercam, do what I need? and convert back to a STL file. see attachment. Thanks from a "pulling my hair out" member -- John VaseDoubleTwist.stl VaseDoubleTwist.stl
Julian All Messages By This Member #1850 John, I tried doing the same exercise a little while ago and failed miserably.? Free version of Fusion restricts one operation in the process which has to be done manually triangle by triangle.? My file had many facets, but that vase has a crazy number, so that route is a non starter. Don't bother with any of the on line converters, they are a waste of time.? I eventually found a SolidWorks version which I managed to get converted on the system at work.? As many modern slicers and printers can use step files directly (claiming better results), perhaps try to find the same or similar vase in the required step format. Also I think Fusion free version can import 3mf files and just ignores print side of the file.? If you can find one of those I'd be happy to try and convert/alter it for you.
John Lindo All Messages By This Member #1851 Thanks Julian for your understanding, this conversion (reverse engineering) is like making glass, once it's melted, a devil's job to get back to the raw materials. I think the new Prusa slicer defaults to file extensions 3mf. So I will?give?it a go. I am using this ew slicer,( I was using slic3r) currently only in the Advanced mode at the moment, the Expert mode well ? LOL This slicer has 3 options to?select, Simple, Advanced, Expert. I really recommend?it to anybody in?the?3D?printing hobby, and it's free, Thank you Josef Prusa. It is certainly compatible?with my new Mizar in reference to exporting the g codes. The days are gone with fighting the I3 clone printers, although without this past experience? over a bunch of years, then maybe a newbie might find the Mizar intimidating the first go around. All in all, for a couple of hundred dollars, the budget Geeetech printer will do me proud. Cheers toggle quoted message Show quoted text On Sun, 11 Feb 2024 at 14:45, Julian <julian@...> wrote: John, I tried doing the same exercise a little while ago and failed miserably.? Free version of Fusion restricts one operation in the process which has to be done manually triangle by triangle.? My file had many facets, but that vase has a crazy number, so that route is a non starter. Don't bother with any of the on line converters, they are a waste of time.? I eventually found a SolidWorks version which I managed to get converted on the system at work.? As many modern slicers and printers can use step files directly (claiming better results), perhaps try to find the same or similar vase in the required step format. Also I think Fusion free version can import 3mf files and just ignores print side of the file.? If you can find one of those I'd be happy to try and convert/alter it for you. -- John
Armin All Messages By This Member #1852 John, if its just for priniting I found a similar vase on Cults3D.com that can be sliced in PrusaSlicer. I'm not sure if the link https://cults3d.com/en/3d-model/home/vasedoubletwist4mm is allowed here, but you could search for vasedoubletwist4mm on cults3d.
Julian All Messages By This Member #1853 I've been playing too! Is this acceptable ... I've had to cut the top off a little.? The original stl is around 1000mm high.? If I scale it to 100mm I think the wall thickness will be around 2mm.? You should be able to re-scale in a slicer.? If the ratio is OK I'll see if I can create a printable file, but I think it's going to have to be another stl.
John Lindo All Messages By This Member #1854 Yes please. My 3D will accept up to 255 mm x x 255 mm Y x 260 mm Z Cheers John toggle quoted message Show quoted text On Sun, 11 Feb 2024 at 18:26, Julian <julian@...> wrote: I've been playing too! Is this acceptable ... I've had to cut the top off a little.? The original stl is around 1000mm high.? If I scale it to 100mm I think the wall thickness will be around 2mm.? You should be able to re-scale in a slicer.? If the ratio is OK I'll see if I can create a printable file, but I think it's going to have to be another stl. -- John
John Lindo All Messages By This Member #1855 Armin. Magic thanks. I can scale up to 200% but 150% seems good. Julian is also working on a STL conversion. So I will have a choice. I will be able to print "hopefully" a vase for my wife, B4 valentines day. Well done my friend. toggle quoted message Show quoted text On Sun, 11 Feb 2024 at 18:09, Armin <ya_duck@...> wrote: John, if its just for priniting I found a similar vase on Cults3D.com that can be sliced in PrusaSlicer. I'm not sure if the link is allowed here, but you could search for vasedoubletwist4mm on cults3d. -- John
John Lindo All Messages By This Member #1859 Julian Armin. Well I managed to create a STEP file from Armin?s?STL Using Freecad, toolbars? part, produce a mesh, produce a solid.? STEP size 706 mb. WOW Brought into my Mastercam, to convert this STEP to MC 8 , ( mastercams own file extension for all designs etc) and after 45 mins it is still trying to convert ? I will try again in the morning, going to bed, computer?turned off but we are getting there. LOL Armin's STL will? for the moment and get the gift printed. Thanks guys. John? toggle quoted message Show quoted text On Sun, 11 Feb 2024 at 18:54, John Lindo via <bechetboat=[email protected]> wrote: Armin. Magic thanks. I can scale up to 200% but 150% seems good. Julian is also working on a STL conversion. So I will have a choice. I will be able to print "hopefully" a vase for my wife, B4 valentines day. Well done my friend. On Sun, 11 Feb 2024 at 18:09, Armin <ya_duck@...> wrote: John, if its just for priniting I found a similar vase on Cults3D.com that can be sliced in PrusaSlicer. I'm not sure if the link is allowed here, but you could search for vasedoubletwist4mm on cults3d. -- John -- John
Julian All Messages By This Member #1860 Julian's not working on an stl conversion, Julian's taking his first steps in working with meshes and it's very frustrating! Won't be venturing back into that work space any time soon. The model will slice OK in Bambu studio but looks like it will benefit from some infill or several wall layers.? Below red paths are 26% fill with two wall passes, but you can adjust as you see fit. The stl is attached. Johns vase.stl Johns vase.stl
BuffaloJohn All Messages By This Member #1861 I managed to get the STL into a step and it was only 550MB, so I started looking at the design and there were holes all over the place, which means the mesh didn't. The link to the vase at cults that Armin posted slices just fine and is only 14MB download... Converting STLs to step doesn't work well with this shape object... toggle quoted message Show quoted text On Sun, Feb 11, 2024 at 11:08?AM John Lindo <bechetboat@...> wrote: Julian Armin. Well I managed to create a STEP file from Armin?s?STL Using Freecad, toolbars? part, produce a mesh, produce a solid.? STEP size 706 mb. WOW Brought into my Mastercam, to convert this STEP to MC 8 , ( mastercams own file extension for all designs etc) and after 45 mins it is still trying to convert ? I will try again in the morning, going to bed, computer?turned off but we are getting there. LOL Armin's STL will? for the moment and get the gift printed. Thanks guys. John? On Sun, 11 Feb 2024 at 18:54, John Lindo via <bechetboat=[email protected]> wrote: Armin. Magic thanks. I can scale up to 200% but 150% seems good. Julian is also working on a STL conversion. So I will have a choice. I will be able to print "hopefully" a vase for my wife, B4 valentines day. Well done my friend. On Sun, 11 Feb 2024 at 18:09, Armin <ya_duck@...> wrote: John, if its just for priniting I found a similar vase on Cults3D.com that can be sliced in PrusaSlicer. I'm not sure if the link is allowed here, but you could search for vasedoubletwist4mm on cults3d. -- John -- John -- Buffalo John
John Lindo All Messages By This Member #1862 Julian That will do me nicely. A good lesson, I think I am getting there, I will try something similar like a cube with less of those triangles to compute. Many thanks John toggle quoted message Show quoted text On Sun, 11 Feb 2024 at 23:18, Julian <julian@...> wrote: Julian's not working on an stl conversion, Julian's taking his first steps in working with meshes and it's very frustrating! Won't be venturing back into that work space any time soon. The model will slice OK in Bambu studio but looks like it will benefit from some infill or several wall layers.? Below red paths are 26% fill with two wall passes, but you can adjust as you see fit. The stl is attached. -- John
Julian All Messages By This Member #1864 It looks like it should work, but I wasn't very impressed with the "hollowing out" process as it didn't leave a constant wall thickness.?? Good luck with it anyway, be good to see the finished item when it's complete.

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