Quote Originally Posted by m.marino View Post
Okay,
So Looking at either a 24 liter tank and low pressure with an outside storage unit for the compress next to the shop or looking on ebay for a used hydrovane (lots of luck on that one) in good condition (need even better luck on that) and getting a brace in the roof to put a track on so the hoses can follow (decreasing the amount of hard angles is a good thing with vacuum).
I've got a 25litre compressor in somebody elses garage if you want to try that option. I think it's only a 1.5 or 2 hp though. I bought it several years ago just to get a job done, somebody borrowed it as a temporary solution and it's sat gathering dust since. You can have it for a minimal fee.

I've got a couple engine driven hydrovane compressors needing collected. They're likely of 80's/early 90's vintage, but will of seen little work. I just want the engines, so you're welcome to the compressors if they're any use.

Quote Originally Posted by Jonathan View Post
That's what I tried with my cheap 24L compressor from a car boot sale...with the minimum flow rate for it to be useful I still could not run it continuously. However if your part doesn't take too long (hard to say how long) to cut then that may not be a problem.
It's all in the nozzle size.

Good thing with either really... most important is to use as big conduit/tube as you can.
Not for something carrying solids/fluids you don't!
You need to keep the air speed up, or it'll drop the solids and clog!