The Hilsch vortex tube

Step 10 Line up and bolt it down!

Now, if you're careful, you can pull out the hot pipe and re align the holes later... otherwise, you'll have to use the corded drill instead of a drill press (if you were using a drill press).

center up the hole on the second 4x4 acrylic square you set aside and drill four or so holes, and using the bolt and nuts, attach the two pieces. Re-attach the hot pipe (look down the holes and line them up, hard, I know, but you'll figure out a way, such as lighting up the tube with a flashlight or something to make the hole visible) and attach the cold pipe.


Almost there!

Now, just attach the ball valve on the end of the hot pipe (if it's snug, you probably could go without gluing it)

oh, and rig up the air lines! I'd go into detail... but every compressor and air line and fitting is different, so you'll have to figure it out... but it's pretty simple, once you're done, slide the lines into place (if very snug, you don't have to use glue) If you're using copper lines period, glue it.

You're finished! it should look like the one below (if the dimensions look different, good, this was one of my many pipes while trying to make the instructable... and certainly not the last! each and every one gets better! )