8020 is an industrial prototyping extrusion made from aluminium. I used it here to construct a chopper by joining the extrusions with water-jet cut plates of 1/4inch aluminum.
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Step 2: Choose the connecting parts from the part library or design your own.

These parts will be cut from 1/4 or 1/2inch thick aluminum plate using a water-jet.
leevonk8 years ago
those rectangular extrusion things can be bought from a company with some german name. They're a little expensive though. People use them alot in robotics.
ashmc84 leevonk3 years ago
80/20 also makes them! contact:
dmitri115 years ago
what program did you use to make the drawings? i have never seen a .dxf file, autocad is .dwg
Marsh dmitri115 years ago
Autocad will load DXF files. It's a very popular import/export format among many different software packages.
$ NAB $5 years ago
Where do you need to open the links ?
dirtydevil6 years ago
hi,these don't seem to work on any cad file reader like CAD viewer,and i also tryed 2 more all give an error
Bob Jackson7 years ago
Congratulations!!! That's awesome. Now can you build the Recumbent Bike out of 8020? I hope you can do it. I wish you the best luck on your next 8020 projects. Bob Jackson
I'm building a chopper for my homecoming parade and I need a fat wheel for the rear where can I get one?
KoolKat8 years ago
Switch8 years ago
Love it :D
Boss_Sauce9 years ago
i love that 8020 goodness! i wonder if you've weighed the bike? also... i wonder if you wouldn't mind saying what it cost you, in the end?
also-- forgot to ask-- you wear a helmet, right? 'cause it looks like the balance is skewed to the rear...:o
tomole9 years ago
I meant my cad progam (Bobcad) can't open these DXF files, unfortunately.
saul (author)  tomole9 years ago
hmm. might be something to do with me uploading them via a mac. I'll investigate.
tomole9 years ago
If it was a DXF file it could be easily loaded into a cad or even a cam program. Nice work!