6 fins

I did 4 in one day. Now I have to set up to machine the big hole.

Fin made from Acetal-C

 

 

 

 

 

I am making 6 of these. It took me a whole day just to make 2.
The operations are:
* 16mm face machining leaving 4mm thick 8mm wide sections to fit into table - 10 mins
* 6mm slot drill - 15 mins
* 6mm ball nosed - 30 mins
* 6mm slot drill - 15 mins
* 6mm ball nosed - 30 mins
* 3mm slot drill - 0.3 mins
The rest of the time is tool changing and preparation. I think I might be able to make 4 in one day.

Hole down centre

3D milling on both sides