After 1st test fit of this redesign of the totem design to make it parametric, I heard a little bit of a crack when tightening the bolts which got me thinking of a way to improve the design. I did only print it at 20% for testing instead of 40% which is the recommended density for the original corners. There is also a 4mm gap on the main parts at the middle of the pipes & where the spacer & belt tensioning parts go. The spacers & belt tensioning parts are 3.5mm thick & my final printed parts of those measure 3.6mm. My 1st thought was to make those parts maybe .2mm thicker. While taking a 4 mile hike in Pisgah forest yesterday I started toying with the idea of splitting the top & bottom parts of this totem design into more pieces & then realized I could do the same for the middle joiner part. So with this redesign, those 3 parts become 11 smaller parts. The 8 parts that touch the EMT are all the same part. They are the height of where the EMT would touch where the part goes flat, so there are 3 flat plates to the design. The middle plate is 4mm thick & the outer plates are whatever thickness you want. I am using 6mm for the outer plates to start with so I can use M5x70mm bolts if I can. The total printing time of these parts will be more, but splitting them apart seems like it could make this assembly stronger. You should also be able to print the 8 parts that touch the EMT on their side. With the simpler design of the individual parts they would be easier to print in ABS & might be able to rout them out of wood or aluminum. I am printing these in PETG & should be able to test it later today or tomorrow. Does this sound like a good idea?
Here is a screen capture of what I am talking about. I just realized after looking at this screen capture again that the bottom spacer & belt tensioner are located at the wrong Z depth.