Folks,
I've been assigned a project that requires the use of an 18v cordless power drill, with the speed controller modified to that the drill can be made to be run at a selectable, continuous speed with minimal user intervention, and (relatively) non-invasive modifications to the drill's innards.
My quick and dirty theory was that it may be possible to:
1) Tape the trigger to the 'full speed' position
2) Install a pot/rheostat on the positive side of the DC motor, therefore controlling the voltage at small increments.
Am I even in the right ballpark?
a) If yes, what would be a safe value for the pot for constant use on an 18v drill?
b) If not, then would you be kind enough to recommend a solution?
Thank you very much for your time.
I've been assigned a project that requires the use of an 18v cordless power drill, with the speed controller modified to that the drill can be made to be run at a selectable, continuous speed with minimal user intervention, and (relatively) non-invasive modifications to the drill's innards.
My quick and dirty theory was that it may be possible to:
1) Tape the trigger to the 'full speed' position
2) Install a pot/rheostat on the positive side of the DC motor, therefore controlling the voltage at small increments.
Am I even in the right ballpark?
a) If yes, what would be a safe value for the pot for constant use on an 18v drill?
b) If not, then would you be kind enough to recommend a solution?
Thank you very much for your time.