Program to generate Gcode for wind turbine blades

[AdCNC]

You have my attention Jonathan. My dad does powered hang gliding and hes been on at me to make him a propeller. but ive not got my head around designing one nor generating the code.. seems tricky in my eyes!

[Jonathan]

You have my attention Jonathan. My dad does powered hang gliding and he's been on at me to make him a propeller. but I've not got my head around designing one nor generating the code.. seems tricky in my eyes!

Er..sounds like an interesting project! The way I've done it is not as difficult as it looks. Basically the program copies a NACCA4412 aerofoil along the blade, scales it and rotates it to the correct angle of attack. It also translates the aerofoils in the Z/Y plane to create the tapered blade...making the leading edge curved not straight - looks nicer!

With regards to using it for propellers it shouldn't take much adapting...just enter points for the aerofoil you want to use (ok I'll make it so you can do that..), and er.......what's the formula for working out the angle of attack, chord width etc? It might be similar to a wind blade, not sure. If you can point me to some more information ot how to calculate the profile then I'll give it a go!