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I see a number of inquiries for an easy-to-learn, easy-to-use 3D CAD solution for designing for 3D printing. I would suggest exploring the Salome platform. This uses a parametric approach and exports *.stl files ready to print. Originally developed for generating meshes for engineering analyses (FEA, CFD, etc.), it is a professional-quality application, and is Open Source. Originally develope
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cwarner7_11
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3D Design tools
Elsewhere I have mentioned the Salome platform. Good, easy parametric geometry module that exports *.stl files ready to print (which is more than I can say for Sketchup).
by
cwarner7_11
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3D Design tools
Problem solved- a new piece of glass was the solution. Nophead- I had been using acetone, but, before I started using the BRIM solution in Slic3r, I had a different issue with prints warping and breaking loose. I noted that the acetone seemd to leave a residue on the glass, so I switched to vinegar and water. Worked well for a while, then the blisters started appearing. End of nozzle was clea
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cwarner7_11
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Reprappers
I have been printing succcessfully with my Prusa Mendel on a glass cover over the heated print bed, using 1.75 mm PLA (various sources and colors) with a 0.35 mm nozzle on the hot end. I use Slic3R and Printrun, and have generally been getting good results. Suddenly, something changed- the PLAis having trouble sticking to the glass, and I wind up getting what I call "blisters" (several photos h
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cwarner7_11
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Reprappers
This is not a bug, merely an observation. Using Slic3r 0.8.4, concentric fill pattern for solid layers. The object is a circular disc with 5 holes equally spaced near the outer radius. When I orient the object with a hole oriented towards y-max, I get a very nice, symmetrical fill pattern. However, if I orient the disc with one hole oriented towards y-min, I get a really weird fill pattern- s
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cwarner7_11
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Slic3r
My sample base for determining the 2% was actually quite small, but consistent over different geometries. I have not yet compared differently-source filament, or different colors.
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cwarner7_11
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General
A "BRIM" of six loops on a 78 mm x 6.5 mm disc definitely cured the warp problem for one particular object I have been stumbling with for quite some time. Working with PLA, I expect about 2% shrinkage as the material cools. If, as in the case of a disc such as the one I am working on, the center of the object has more thermal mass than the edges (which are going to cool faster than the center),
by
cwarner7_11
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General
I have been having significant problems with print warping of late. I have been printing PLA on heated glass- small objects no problem. They stick to the glass until the glass cools down. However, when trying to print a disc about 78 mm in diameter by 6.5 mm high, the print would warp from the outer edges at about layer 15 (0.2 mm layer height- so roughly half way through the print). Warping
by
cwarner7_11
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General