The pre-processor typically handles this for different devices, with FreeCAD this is typically a python script Next we need to choose a file pre-processor, some devices need a bit of special formatting for the G-Code. Make sure to select G-Code in the drop down box for the file save prompt The first way to generate the G-Code is just to use File -> Export within the Path Workspace Select Path Projectįirst select the Path Project within the FreeCad Part Here is my current Freecad setup (I can upgrade if needed): Can Freecad make the tool height vary along the path like this? 25mm (over the first 8"), and then back up to. Over a 16" path (in X/Y), the thickness of the sliced part would vary from say. While this is not an ideal use of the cutter, both the cutter and the material are flexible enough this should work. We may, at some point, also need to slice while slowly varying the thickness. I have watched a number of tutorials, and can easily make a simple pocket, face the outside of the object, etc. The rib stock would stand on its edge while slicing with a cutoff disc in a mandrel.
I am including a photo of the laminated stock, along with one manually-sliced rib. Of course the tool would have to move out (in X) to clear the part before changing height.Ĭan I put in the rib object and somehow generate the path, following the curve of the rib? Or do I have to make a fake larger part and then create a tool path pretending to cut the outer face of that object? Multiple passes would make multiple ribs, moving the Z axis between passes. I would like to stand this 1" wide rib on edge on the router, then using a very thin diamond cutoff wheel (dental wheel, 22mm diameter, 0.15mm thick), I would like to slice ribs to less than 1mm wide. In doing the carbon laminate, we curve the balsa wet on a form, then vacuum bag carbon/epoxy to top and bottom surfaces, making a "rib" that is perhaps 1" wide. The ribs are typically curved, about 1mm thick, and less than a mm wide, and about 8" long. Recently we started making carbon laminated ribs.
I help a STEM team (high school) with model airplane competitions, using ultralight balsa models for indoor duration. I have an application that I am trying to figure out, since it is a bit off the normal path of a mill/router. I just got a 3018 CNC router too for Christmas, so this is my first dive into the path toolbox. I have used Freecad quite successfully for a number of 3D printed parts and mechanisms.
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