You find a lot of such bevels and chamfers on an engine block. Like what you say? Like bevels and chamfers on irregularly shaped edges between two boolean union objects for example. There's certain things you can do in that program that you can't do in 3D Coat. As a hobbyist, or educator, you might prefer freeware like DesignSpark Mechanical.Īt least, this is my viewpoint, but of course you have the right to see things differently.I've played around with MOI3D and it's useful to an artist alright. If you have a company and need to exchange designs with manufacturers, you might prefer a commercial package. In the end, even if you spend a day watching demo videos, it will save you weeks of time. Not every user-interface appeals to everyone (for example, I can't find my way around in Onshape, while others can do wonderfull things with it). The best thing you could do is watch a few demo-videos on Youtube (also of other candidate programs, FreeCAD, Onshape, Blender, Solidworks, Maya, Form-Z.), and see wether it appeals to you. But for 3D-printing, it is more than sufficient. Or Form-Z.Īlso, DSM is somewhat limited in features, compared to its commercial sister SpaceClaim, or to Solidsworks. For technical renderings, you might need Solidworks or similar. If you need colorfull renderings and organic shapes, you might need Blender (free), or Maya, or something similar. But these can not be printed on an FDM printer anyway, so no problem for me. Especially if you come from SketchUp.Ħ) It is free, contrary to Solidworks and similar very expensive packages.ĭisadvantage is that you can not make colorfull renderings, so you can not add brick textures, wood, grass, etc. These are not solids, but "empty cardboard models" that can not be printed, and that are horrible to correct.ĥ) DesignSpark Mechanical is much easier to learn than for example Solidworks (although Solidworks is way way more powerfull). It may look okay from a distance, but it is not water-tight. Contrary to in SketchUp: very often the walls do not touch each other, but there are invisibly small openings, like a paper model house that is not glued together perfectly. (Compare this to for example FreeCAD, another freeware 3D-editor: in FreeCAD you can create very complex designs, but most of the time it is impossible to change them afterwards, without breaking everything else.)Ĥ) As gr5 said, in DSM we never have problems with "empty" cardboard models. This is a major benefit when you often have to change existing designs. With SketchUp you are going to have them every time, and you are going to waste days and weeks, and get very frustrated if you have deadlines and work to do.Ģ) In DSM it is easy to round corners, or add chamfers, which is often needed in technical parts.ģ) It is easy to undo things: to delete or change existing roundings on a design, move holes, change extrusions, etc. Reasons for prefering DesignSpark Mechanical over SketchUp:ġ) I never had any STL-file problems with DSM, thus never had printing problems. What are the benefits of DesignSpark Mechanical over sketchup? why is it better than sketchup? I didn't create this but I think it's the best guide out there: Here is a very simple guide to find the best possible cad software. If you have been using sketchup for a year or so you probably don't want the pain of learning a new CAD and you might consider sticking with sketchup but learning a few extra tools and techniques. And it has links to great sketchup tools to test that your model is manifold. If you follow that link I posted about sketchup - it's really well written - simple to read - with nice pictures explaining everything. The interface in DSM just makes it hard to create impossible things that can't be built in real life. If you click on a side and try to delete it - you can't. In most CAD you can't do that - you might start with a rectangle in just two dimensions (so it does let you do it briefly) and then you immediately extrude that rectangle into a 3rd dimension and now you have a nice solid part. Everything has a continuous surface that clearly defines what is inside and outside the part.įor example, if you designed a cube in sketchup and forgot to put a bottom to it, you might not notice in sketchup but that cube only has 5 sides - no bottom. It's very hard in DSM to create something that isn't solid. Normal CAD for "real" things - to build real things - only creates solids. And you can map visual textures onto planes and make nice renderings really fast. It's great for architecture where people don't care if a wall is infinitely thin or not. Sketchup allows you to draw an infinitely thin wall.
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