Customizable Polygonal Picture Frame by GeoDave

Last crawled date: 3 years ago

I initially started creating a simple customizable openscad file for rectangular picture frames using some of the sample mouldings from:http://www.hornermillwork.com/cad-library/mouldings
I edited 5 of the DWG profiles to create DXF files to import into openscad to start with to give me a little variation & it worked pretty good. After finishing the rectangular openscad file, I started making several different openscad files for 3,4,6 & sided frames. After those worked, I worked on the calculations needed to make a Polygonal Picture frame with whatever number of sides you want. I then decided to make a customizable profile with variable width, thickness & up to 5 different cuts along the length of the profile & 1 cut along the miter joint top edge:
Inside edge
Outside edge
Center Cut
Between Center & Outside Edge with variable offset (shown with 4 sided circle cut)
Between Center & Inside Edge with variable offset.
Custom Cut along Miter Joint
The inside & outside edge can be Rounded, chamfered (4 sided circle) or fillet like the center cut in attached image of the one moulding profile. Seems like this could be useful with cutting custom mouldings or picture frames with CNC machine or 3d printed.
To make the rabbit cut easier to 3d print, I also added an option to taper that cut up at 45 degrees. There is also an option to add a base thickness if you do not want the frame open in the center.
The profile samples I used from the moulding library are DXF files, so you could create your own custom profile if you want to get even more fancy. I am drawing these in mm units, but added an option for Units = inches which simply divides the mm / 25.4 for the variables used.
This openscad file will work with thingiverse customizer or you can have even more flexibility by downloading & editing the openscad file. The thingiverse customizer does not seem to work with DXF files, so you will have to download the openscad file to use that option. The rectangular version where the Length & Width are different lengths I will add as a remix so that can be opened in the customizer as well.
I have noticed that I had to repair the generated STL files using netfabb & I have not figured out how to fix that. I usually run my STL files thru that program anyway.