It was suggested that door motors might not be suitable owing to the idea that they are not designed for continuous use like the wiper motors are, but I am not sure this was suggested by anyone who has any practical experience with them. I have seen wiper motor based feeds demonstrated on the net like some of the ones here:
http://www.machinistblog.com/make-or-buy-a-power-feed-for-your-mini-mill/
or here:
http://home.swiftdsl.com.au/~thetinkerer/projects/powerfeed/index.html
From: Jim E. <jim0000@attglobal.net>
To: GrizHFMinimill@yahoogroups.com
Sent: Monday, December 12, 2011 11:50 AM
Subject: Re: [GrizHFMinimill] Re: $50 mini-mill power feed
Didn't some of the earlier versions of this "mod" suggest automotive
door or wiper blade motors??
Graciously,
Jim E.
Lakewood, Calif.
All Hail Rube Goldberg!
Bill Williams wrote:
> Charles wrote:
>
>>Be wary of using drill motors for any sort of continuous operation.
>>They are designed for intermittent operation.
>>
>>A student used one years ago to power a display in the architecture
>>building at Cal Poly, San Luis Obispo during their annual open house.
>>The building wound up severely fire damaged.
>>
>>Chuck K.
>
>
> I would wonder if the duty cycle of the average drill motor is greater
> or less than that of the mill motor? And since a power feed has at most
> a couple of minutes of operation from stop to stop I suspect that
> someone would be there to smell the smoke and unplug it! Perhaps even
> use a fire extinguisher as required! I think that you are either solving
> a non existent problem or inventing a problem to solve! Bill
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
door or wiper blade motors??
Graciously,
Jim E.
Lakewood, Calif.
All Hail Rube Goldberg!
Bill Williams wrote:
> Charles wrote:
>
>>Be wary of using drill motors for any sort of continuous operation.
>>They are designed for intermittent operation.
>>
>>A student used one years ago to power a display in the architecture
>>building at Cal Poly, San Luis Obispo during their annual open house.
>>The building wound up severely fire damaged.
>>
>>Chuck K.
>
>
> I would wonder if the duty cycle of the average drill motor is greater
> or less than that of the mill motor? And since a power feed has at most
> a couple of minutes of operation from stop to stop I suspect that
> someone would be there to smell the smoke and unplug it! Perhaps even
> use a fire extinguisher as required! I think that you are either solving
> a non existent problem or inventing a problem to solve! Bill
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
__._,_.___