[chbot] slow motor

[Andrew Errington]

Depending on which part of the original motor assembly died could you
combine the electric drill motor with the worm gearbox?

If it's going too fast could you put a PWM speed controller on it?

Andrew

On Wed, 17 Nov 2021, 18:29 Robin Gilks, <gb7ipd at gmail.com> wrote:

> Greetings all
>
> I've followed up the suggestion of using a cordless drill for my low speed
> motor to substitute for a wiper motor..
>
> Investigation of 9.6, 12 and 18v drills that have gone the way of nicad
> batteries have shown me that they all spin way too fast and have nothing
> like the torque of a wiper motor.
> This is mostly due to the gearbox rather than worm drive the wiper motor
> has. The added advantage of the worm drive is that it can't (easily) be
> driven from the output side so no brake is required.
>
> So back to Monday night's question, does anyone have a wiper motor going
> spare? Permanent magnet (i.e. reversible) with a simple shaft out rather
> than an internal cam or crank..
>
> Cheers
>
> --
> Robin Gilks
>
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