@ charadam,
Firstly I dont have a 3d printer....
![Doh :Doh:](https://madmodder.net/Smileys/default/Doh.gif)
, 2nd, I dont have access to a 3d scanner or other means of providing an stl (?) file for printing one, 3rd, I dont know anyone with a printer...
![:scratch:](https://madmodder.net/Smileys/default/icon_scratch.gif)
and 4th, not sure if a printed fan would endure the motor speeds....in excess of 4000 rpm...
![:scratch:](https://madmodder.net/Smileys/default/icon_scratch.gif)
The fan(s) is (are) for a vintage electric drill that I'm refurbishing, the fan once removed cannot be replaced as it is destroyed in order to remove it...,( crap design I know...
![:doh:](https://madmodder.net/Smileys/default/doh-45.gif)
) but there you have it...
Also the plastic fan has a metal centre boss where it fits onto the motor shaft....
I've molded some fans in resin using a silicone mold, but havent tried them to see if they stand up to the speed....but the original fans are probably molded in the first place..,
Lew, thanks for your approach, sounds like there's an excess of available heat at 2kw.....
![:zap:](https://madmodder.net/Smileys/default/electricf.gif)
,
I'm going to use a PID temp controller to control the heaters....
I'll post up a picture of the type of fan I'm on about....