It won't be a CNC mill
A flow jet is a very high pressured water jet with bits of sand in it. The CNC bit once loaded can just repeat on a plate. So once its steup you hit the button and come back 10 mins later and every thing cut and no nasty edges to sort out. Only limit is the size of the plate and the machine, I will have to see what the min hole size they can make. I suppose I could try and see if there is a laser cutter about. I have never worked that much with thin section Aluminum but I know its a bastard to weld, extremely high melting point, conducts heat fast so there might be problems with thin sections warping and a laser.
I will have to ask and see what they say.
We will see whats available. The Al ones you can buy from the flight shops are about the 15-20 quid mark. But have knicker elastic and bare metal.
While surfing for cover materials I found some magnetic plastic sheet so it looks like the IR board will have a chess board on the back in the middle surrounded by non slip. Will ship with a garantee that it will piss your fleet manager off.
The reason for putting non slip on the back is to use it as the main method to stop it moving, so it shouldn't need to be to tight, the webbing I found is course weave 38mm with a 40mm quick release bayonet type buckle. There is 38mm elastic webbing as well, I will see if I can con a couple of test samples out of them.
Only thing I am struggling on is the clip for on the top to hold the paper work. The only ones I can find are Stainless steel ones for food clip board's and they are huge
http://www.teknomek.co.uk/stainless-...oard-179c0.htm
Also I don't like the idea of a huge bit of sharp metal sticking up like that. I can imagine how quickly the ball booting will start when windows start getting scratched.
Can anyone think what you would call them? Or know of a supplier who would have them.
At the moment I can only find complete clipboards with what I want on them.
I am intending to bodge together some demo models using some plate hand made, some bits from the local chandlers and butcher a cheap clipboard, experiment at work and see what works best. If it stays put and doesn't cut the blood supply off with the wx we are getting next week it should do an instructor/ppl no probs.