[chbot] Window opening

[Mark Atherton]

Ecotech, Red-shed, or MM ??

On 27/09/2022 2:32 PM, Robin Gilks wrote:
> Well I think I have a solution using a lead screw - it took a while to
> get the angles sorted out so that when closed I didn't give myself a
> lobotomy with levers hanging down from the roof!!
> 
> Using battery drill motors but I've hit a problem - my 18v motor is
> perfect but the only other one I have (two windows!) is 9.6v so it
> would run a bit quick @ 12v or least it would have done if  the torque
> setting part of the drive hadn't lost all its ball bearings as I
> dismantled it (2 sizes of ball, no idea if I caught them all!).
> So does anyone have an old 12 or 18 volt battery drill (NiCd type)
> they want to donate?
>