I've been searching for an aluminum extrusion as shown in this amplifier build. Ive searched the usual places such as Amazon and McMaster-Carr. Any suggestions? I'm in the USA so somewhere local to the US would be nice.
Looks like either a part for racks, or else could be hardware store U channel. Check your local Ace etc. first.
Robotics people use these too. If you can use solid U channel and drill holes, it will be real easy to find something. McMaster-Carr
they are very popular here in Argentina, since buying one plus a few extra hand tools such as riveters, etc. you can set up your own "metallic carpentry" shop making custom sliding doors, windows, etcetera.
I guess what you show is a generic prepunched strip sold by the meter, but absolute worst case, your handy local "aluminum carpenter" can help you.
The machine is inexpensive, our local price is about 200 bucks and its uses are invaluable.
I have 2 of them, with lots of dies covering anything such as round holes in all sizes, rounded rectangle ones (rack chassis mounting holes), rectangular ones for rocker switches, D shaped ones for fuse holders, slots for slider pots, etc.
IEC hole dies are too large to be punched in a single hit but I manage them in two halves.
In all, most valuable machines which have paide themselves MANY times.
Correct Enzo. I just wanted an aluminum channel or angle with holes regularly drilled or punched. While I CAN drill them by hand, I was holing this was a common extrusion. The closest thing I've found is in the Robotics arena. This is pretty close.
The photo of that unit - appears to have three bolts holding that aluminum angle.
I don't understand the worry over all the other unused holes and slots, unless weight is an issue.
A solid strip I would think, drilled for the three holes would be just fine.