scale factor, rotation, location, … ) are independent. Anything that operates on the object (e.g. Then switch to another layer (where your plate resides) and add 4 instances of this group. So this gives you some extra power to ease precision placement (as the center can be used for snapping). Then arrange the objects around the scene’s center point just like yo want it.īackground is that the center point will be the origin point/median of the group instance. If not, then make sure you are in object mode. When adding them, they should be located in the center of the scene. Just keep the created bolt + nut (using BoltGenerator addon) on one layer and group them. Now here an assembly/group instance comes into play. Now you may want to bolt it together at/in each corner… You may want to use 4x the same screw + nut kind. Here’s why:Ĭonsider you have one kind and size of bolt for bolting a square plate to a 2nd plate. Note that I recommend to use group instances whenever possible. (the thing is still a look at your outliner. I’ve once created parts for drones (quadrocopter) using blender and it worked like a charm. Not sure but I think a friend of us had put together an addon for exporting to manufacturing drawings. The missing arc functionality and brep geometry is the only malus of blender for CAD aside to automated measurements but I’m working on that latter one (and CADTools add the precision arc functionality),Īutomatic constraint resolver (for more parametric approach) also is missing, but come time comes solution, I’ll fix it once I have time.īlenderCAM convenience script (Unix) is working.īill of materials addon is fixed but I need to work on assembly (group instances) features a bit more. Will be a custom build at Graphicall or I’ll provide an automatic setup script for download of blender sources, applying the patches and building. If you miss arc handling then have a look at Migius’ CADTools (it’s for 2.49 but we plan to port it as soon as blender devs give us the chance - there’s something with modale operators, at some point I’ll have a look at the C++ and see if I can provide some patches that allow CADTools in 2.7 or rather 2.8. And that’s something no CAD tool out there has, speed in blender is unbeaten. Great for blengineers is that the workflow is always kept at an epic level, because blender devs take care of this for the amazing blender artists anyway (e.g. Blender is state of the art and one day we’ll integrate FEM and other analysis into it though this also depends on how FreeCAD evolves (note that freeCAD and blender both are usable with each other, consider the bpy and the freecad python modules). Switching into orthographic mode top/left/right/bottom view is so quick. The snapping functionality in blender is so much better than even in LibreCAD. If students had to buy these toolsets … hehe, they’d all be using blender and Gimp. People just don’t use it because they are afraid of the UI (but you just have to get used to it) and of course because universities provide AutoDesk, Cinema4D, Photoshop and other tools for free. Personally I’ve never seen a more promising program for CAD than blender itself (had been using AutoCAD, DraftSight, QCAD, LibreCAD, FreeCAD). It’s also helpful to use snapping to the grid. It’s important to enter some values manually in blender if you want high precision. Just re-set the value to the even value then. The main quirks are that at times you have some odd numbers like 2.9999999999 instead of 3. A recent blendercode commit now allows to fully set a value to 0 (thanks for that). Precision modeling has its quirks while possible. (You are planning to build space rockets? For that to work we’d need to make progress on our open source metal 3D printer I think. Most new CAD users who are just looking to get a single project completed and don't need to work every day in a CAD application only need a quick 'hop through' Section 1, Section 2 is a bit more technical in nature and discusses the details of how tools work and some of the underlying mechanism as well.Glad you use blender for CAD. This manual is divided into 2 Sections: Section 1 -" Introductory CAD Concepts and Uses" and section 2 - "The Command and Feature Reference". Its aim is to describe the way that the LibreCAD software works from a user's perspective. This is the current LibreCAD Users' Manual.
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