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. Perhaps two passes, one at 0.1 mm and them 0.2 mm if necessary.īut overall very happy with my first attempt.Glad you use blender for CAD. Therefore the copper tracks where reduced to 0.1 mm rather than 0.2 mmĬontrolling the board height or cut depth to 0.1 mm needs more thought. The main problem was that the isolation cut with was closer to 0.3 mm rather than 0.2 mm. My eyesight is not that great now, soldering for me is more like pushing the iron and solder in the general direction of the part and hoping for the best! My iron is 35 years old and has not shrunk to keep up with modern electronics. No need for high speed (I used 300 mm/min): The CAM package will offset the cut to the outside of the polyline. I used a 60 degree V bit (0.2 mm cut depth for isolations) and a 0.72 mm end mill for the holes and the cutout. Run the macro (BMP2DC2) to import the BMP into DeltaCad. Mirror the image (as this is a top view) and convert to 24 bit BMP:
#Deltacad tutorial code
The only borrowed code was the BMP Preview file manager code that came from the Cyress Enable website:Ĭonvert to PCB (you will need this for component placement later):
If you wondering it took three solids weeks to write this macro from scratch! don't have anything on the border).Ĭypress Enable is pretty slow, a lot of time was spent making the code efficient (all algorithms are linear or nLogn). Note: All outlines are closed, to do this a one pixel border has been imposed/cleared (i.e. If black outline may appears then number of segments is too high (>3072) for a shape. The macro uses shapes (Blue for clockwise (or an outside edge) and Red for anti-clockwise (or an inside edge)).
#Deltacad tutorial update
6.2 Press Okay7 Depending on the PCB complexity after a few minutes the macro will update the screen with the result. 5.2 Press Okay6 Depending on the BMP file size, after a few seconds another menu will appear: 6.1 Select your options (note: the pixel spacing is in mm per pixel and is used to scale the output to DeltaCad).
(the macro file manager will allow you to navigate anywhere to find your BMP)4 Run the macro (mine is call BMP2DC.BAS).5 The BMP File Viewer will appear: 5.1 Select a BMP file (a preview will appear).
#Deltacad tutorial how to
Okay, how to use: 1 Convert your PCB image into a 24 bit uncompressed BMP.2 Try an get it as Black and White as possible using an image processing software.3 Put the macro in a directory (where you can find it). Really, writing the macro was just for fun! Why not use an online 'Image to Vector' program? it does not remove all the copper) so its called an "Isolation". As it only traces the outline of the PCB tracks (i.e. Basically its macro that converts a printed circuit board (PCB) image into outlines that can be used by a CNC machine to make a copy of the board.
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