FYI the cost of hiring a trade stall space at Duxford has also gone up this year.

A quick question for Texan Tomcat does the picture you took 10 years ago match this one ?

Dimensions are

Large end – 34 1/2 inches OD, 33 inches i.d. Circumf of 54.5 inches Height of 17 1/2 inches
small end – 11 1/8 OD and 10 1/2 id circumf of 15 inches height of 4 1/2 inches

Total length of 68 3/4 inches
Outside edge length of 70 1/4 inches

Max height is 18 3/4 inches

Thank you.

There is also this sabre canopy in UK.

The trick in using it is to push down on the metal whilst also pushing through – so that the edge rides along the angle iron and the line stays parallel. If you just pull it will rise up and down. Gloves help dependant upon the metal edge.

I have used it on fresh metal as well as aircraft parts and it is tricker with thicker and harder metal but works.

If that is not what you want- these were ones I was originally looking at:

http://www.stakesys.co.uk/department/bead_formers_and_jennys/

It appears to be the same Chinese machine that Axminster etc are selling just paint and price are different.

You can make a nice and cheap aluminium creasing/flange machine from two unequal sets of ball race bearings.

Stacked on top of each other in opposite sets and bolted through some washers onto a piece of angle iron. The height is adjusted by the washers and the distance between the bearings matches the aluminium thickness.

I use it regularly to create offsets