[jayco]

I was putting this little forge and blower together (using one of those 4 in. computer fans as the air supply) and noticed a problem.
Very little air into the forge! There was so little air that I thought I'd put the fan in backward! Well, I hadn't done that.

First of all, this is a tiny forge....the vertical air pipe is a grease gun tube........the horizontal pipe is only 1 in. inside diameter.

These little fans work on my regular forge as 'helpers' pretty well.....of course my regular forge has 3 in. air supply pipe.

These little fans don't have enough power to be constricted to a small pipe....say.......1 in.!

Oh well, live and learn.........

James