Take the one out of a printer! I disassembled a printer for the motors; but found out that the traverse rail for the printing head is a very precisely machined and polished stainless steel rod. It is extremely smooth and has two counter-sunk mounting holes. It's absolutely perfect. AND IT'S FREE! The one I found is precisely 3/8" thick and 16" long. I hope this tip helps someone. Maybe pics soon(ish).
-Robert
-Robert
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