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| The Chicken Chopper http://byap.backyardmagazines.com/forum/viewtopic.php?f=5&t=4331 |
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| Author: | veggie boy [ Oct 18th, '08, 05:48 ] |
| Post subject: | The Chicken Chopper |
Do windscreen wiper motors automatically change direction as they are switched on and off - or is that doen by reversing the polarity and by using some sort of component that is additional to the motor? Also - does anybody know - does repco, supercheap and those sorts of places sell them? |
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| Author: | steve [ Oct 18th, '08, 07:03 ] |
| Post subject: | Re: Windscreen wiper motors. |
am almost certain that they use limit switches inside the motor assembly. hence why the plug will have 4 or 5 wires. sorry vb, i know that you want a short answer, so "NO". look for a OEM replacement |
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| Author: | mylesau [ Oct 18th, '08, 07:33 ] |
| Post subject: | Re: Windscreen wiper motors. |
Component additional to the motor +1 I use one for a rotisserie on my BBQ (mainly to roast coffee beens...), runs in only one direction from a 1A transformer. |
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| Author: | mylesau [ Oct 18th, '08, 07:34 ] |
| Post subject: | Re: Windscreen wiper motors. |
Got my from the wreckers... |
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| Author: | steve [ Oct 18th, '08, 08:31 ] |
| Post subject: | Re: Windscreen wiper motors. |
myles, but you're only using two of the 4 or five wires. I'm fairly sure you'll find that if you run two of the other pins inn series you will get the back and forward. |
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| Author: | steve [ Oct 18th, '08, 08:40 ] |
| Post subject: | Re: Windscreen wiper motors. |
I stand corrected. http://auto.howstuffworks.com/wiper1.htm the extra two pins are used to "park" the wipers, power is constantly supplied (with ignition on) to one of these pins and will be fed though the closed contacts until they reach the "parked" position where they will open can cut power. http://www.scary-terry.com/wipmtr/wipmtr2.htm so, no extra device and no internal device, simple linkages. what is your exact problem VB, so i can give a diagnosis 
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| Author: | RupertofOZ [ Oct 18th, '08, 09:39 ] |
| Post subject: | Re: Windscreen wiper motors. |
Quote: what is your exact problem VB, so i can give a diagnosis Well this could run to 20 pages+ and a couple of months easy... better call in KEII to help Steve.... 
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| Author: | veggie boy [ Oct 18th, '08, 10:16 ] |
| Post subject: | Re: Windscreen wiper motors. |
I'm going to get chooks again in December - will finish my chook pen renovation in the meantime. I wanted to get an automatic chook door www.chicken-house.co.uk/aup/index.htm , because I'm always forgetting to put the chooks to bed (ie close the door before dark to keep the foxes out and before morning to keep the chooks in). The thing was always going to be expensive, but the recent slide in the $A makes it ridiculous and so I won't be getting one and instead will look at rigging up my own. Other than the door and guide - which I would have made myself anyway - all I figure I need is a 12 volt moror with limit switch inbuilt (or if not inbuilt - a magnetic switch that I can put on the door and frame), a 12 volt timer, a 12 volt photoelectric swith and a battery. Hence my questions about the wiper motors - I'm sure the brains here will be very useful in assisting me to do this :-) |
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| Author: | veggie boy [ Oct 18th, '08, 10:17 ] |
| Post subject: | Re: Windscreen wiper motors. |
BTW - I have a photoelectric switch - but it is 240V  . I'm sure they'd come in 12volt though - cos they'de be used in solar powered lights and shit wouldn't they.All the parts would have to be super reliable though - or bye, bye chookies. I have foxes and wild dogs around here at night. |
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| Author: | mylesau [ Oct 18th, '08, 11:59 ] |
| Post subject: | Re: Windscreen wiper motors. |
Your 100% correcto Steve. Park switches of some sort in the 2nd part - red ring. Only use ground and one connection to run it - one of the other connections changes speed by about 1/2 for this particular one - no clue what it came off of... Attachment:
File comment: Wipers
Wiper.jpg [ 81.87 KiB | Viewed 3824 times ] |
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| Author: | Food&Fish [ Oct 18th, '08, 13:13 ] |
| Post subject: | Re: Windscreen wiper motors. |
veggie boy wrote: I'm going to get chooks again in December - will finish my chook pen renovation in the meantime. I wanted to get an automatic chook door http://www.chicken-house.co.uk/aup/index.htm , because I'm always forgetting to put the chooks to bed (ie close the door before dark to keep the foxes out and before morning to keep the chooks in). The thing was always going to be expensive, but the recent slide in the $A makes it ridiculous and so I won't be getting one and instead will look at rigging up my own. Other than the door and guide - which I would have made myself anyway - all I figure I need is a 12 volt moror with limit switch inbuilt (or if not inbuilt - a magnetic switch that I can put on the door and frame), a 12 volt timer, a 12 volt photoelectric swith and a battery. Hence my questions about the wiper motors - I'm sure the brains here will be very useful in assisting me to do this :-) Ha Ha Ha i will put you in touch with my mate he built one and one weekend he had visitors and they all were out next morning to see the chook door open it opened on time the first thing that walked out was a fox [and no chooks] |
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| Author: | Dufflight [ Oct 18th, '08, 13:19 ] |
| Post subject: | Re: Windscreen wiper motors. |
  Was thinking the same thing when I read it.
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| Author: | hygicell [ Oct 18th, '08, 19:56 ] |
| Post subject: | Re: Windscreen wiper motors. |
veggie boy wrote: I wanted to get an automatic chook door easiest to scrounge are car window motors with limit switches and all find an appropriate car wreck (i.e. a monovolume), empty it of everything except the window motors and the battery throw some straw in it, add a ladder to one of the windows and you have the perfect chicken pen  no modifications necessary leave the wheels on and you can move it to where you want it retrieve the eggs through the motor hood I would use the wiper motor to build a piston pump frank |
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| Author: | heka [ Oct 18th, '08, 20:50 ] |
| Post subject: | Re: Windscreen wiper motors. |
Hi VB, I have chooks and ducks, and I have the chookyard fenced and covered with birdnetting (keeps the birds of my apple trees). My neighbour had 8 ducks killed by a fox. Another had 6 chooks killed by a fox - while his Dalmation was sleeping nearby! I have also been thinking about an automatic door as well - I reckon use a retractabel car antenna either s/h or new. I found one priced @ $74 and the same one in another store $48. Has limit switches (not operated by radio switch) Disconnect the s/s antenna - you get about 1 mt (or so) of flexible plastic (strip) with a bit of tweaking you can set the limit switches distance you need for your door up or down or left - right. Attach your door - set your timer - should be up and running in no time heka |
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| Author: | veggie boy [ Oct 19th, '08, 11:51 ] |
| Post subject: | Re: Windscreen wiper motors. |
Heka - that's a good idea, regarding the electric antenna, but I wonder whether it would be robust enough. Pretty small motor I'd expect. Given the value of the chooks, this is one thing I'm inclined to overengineer. I'm still keen on the idea of using a windscreen wiper motor, so just need to work out how to work the switching so it will work to open and close the door. I was thinking that I would use this sort of thing (2 sets - one set at top and one set at bottom) to switch power off when door reaches its open position or closed position http://www.jaycar.com.au/productView.as ... &SUBCATID= I would then use a timer and/or twilight switch like this to turn the power on when I want the door to open or close http://www.jaycar.com.au/productView.as ... &SUBCATID= It would seem that if I were to use a wiper motor, I'd also need to have a switch to change the direction of the motor so it would both open and close. Garage door openers have this sort of thing I supose. The other option would be to engineer it so that the door will somehow open and close by using the motor going in the same direction for both. Similar to the setup for the wipers in Steve's first link I guess. |
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