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I'm working on a 4th one as I finally finished up my wiper idea.
The linear actuator-
Only issue is that it sticks out from the firewall and requires limit switches to control it's movement- plus a two SPDT Bosch type relays since you have to reverse the polarity on the motor. Can also use a current limit device -but more prone to failure.
a little smaller-
and another idea I messed w/ was a cable driven linear actuator
The third is a iteration of the electric headlight conversion-using Miata/Ford Probe headlight motors. These are great as they as very reliable and electrally very straight forward to wire- no limit switches or reverse polarity switching or current limiters!!!
I did mine with a 2004 Malibu seat motor. I modified the vac canister bracket to mount the seat motor.
At first I mounted it toward the fender, but it interfered with the good closing properly. So I turned it around. Then I made a tin box to cover it with.
It works great, but I`m not happy because it moves too slow. After watching Richard`s video, I think I`m going to use the headlight motor instead.... so I`ll be ripping this all out and starting over!
I just used a 6" linear actuator, and some simple relays hookups to provide reverse polarity, and some magnetic burglar alarm contacts....one on the windshield activated by magnet on the door, for closed position, one on the vent grill, activated by another magnet on the door front edge....I also did a 555 timer chip for intermittent wiper action....
DSCN4977 by Richard Hayes, on Flickr
DSCN4655 by Richard Hayes, on Flickr
DSCN3839 by Richard Hayes, on Flickr
DSCN3840 by Richard Hayes, on Flickr
wiperdoorcontrolREVISION by Richard Hayes, on Flickr
