way too complicated if you ask me! ELECTROMAGNET to hold ramp door closed and timer to cut power in the morning then gravity opens door ...no motor no nothing magnet and timer duhh
Then how would it close? The force created by an EM is inversely proportional to the distance... VERY powerful close (< 0.25") and completely ineffective over about 2" of distance.
@@ZookeeperJohnG could you please explain what is switching it on in the morning to open the door and how? Could you draw a diagram with hand and post the picture ? Thanks
I'm a do it yourself guy too , like your idea , but would go to 12 volt drill and just use timers real cheap after Christmas . in fact I've got several old reversible drills , I'm going to use one to go up and one to just go down
The solar panel acts as the photo sensor in the first design. I then added a photo resistor and $8 high impedance DPDT relay which uses almost zero power to operate.
I suggest putting some kind of water proof epoxy on the light sensor. Humidity could short the leads and open the door. Also, the string will wear out one day , and any chickens that are outside will not be able to get inside to safety.
The DLR is covered with a small class jar and lid, pleased up side down. Because the string is easily visible, any wear could be addressed when/if it happens. Good suggestions tho!
doesn't the drill have the reverse circuit built in? I wonder if you could some how wire to the door to the forward/Reverse switch to make it change directions? I just found an old drill which I am going to try and do with with.
You have mine beat by $25, but mine is way more secure. ruclips.net/video/jYM0xZ8TwaA/видео.html You have an update video? 13:15 BTW the whole reason you have to use a 15AMP fuse in YOUR system is because you are using different wire gauges, goin up and down in size. You need to be using a uniform gauge for this sort of stuff. For any wire that is for that actual motor you need to use wire that does not restrict the flow of current. it looks like you are going from 16 AWG to the motor, then feeding the relays (87 and 87a) with 18 Awg, then the fuse holder looks like a 20 AWg wires them back to the battery that is at least a 16 AWG.
Could you please explain how do you switch it on in the morning to open the door ? I understand that light sensor will switch on in the evening and close the door but what is switching it on in the morning ?
@@ummahofsheeps7495 Correct, the LDR takes some energy from the solar panel to energizes the relay coil during daylight hours. The relay controls the Up-Down function, it has 8 terminals: 2-coil, 6 DPDT wired to provide "H-bridge" direction control of the actuator.
BTW the simple $19 electro magnet is 130llbs of force! NO coyote could possibly overcome THAT! AND it is fail safe if the power goes out the door opens ...add a quality timer to break the circuit every morning and you have a VERY safe reliable door opener powered by either gravity or a $3 screen door closer spring! Also as I mentioned on earlier post you could also use 12v magnet with battery and solar charger ...even add a light circuit or electric fence wire to that if you wanted to...I had 120v handy so I just went that way...KISS (keep it simple stupid) ....120v magnet at Amazon on earlier post but here is an even stronger 12v one for about same price if don't have 120volt power handy~~> www.amazon.com/UHPPOTE-Holding-Electromagnet-Magnetic-Electric/dp/B00W3HRV1Y/ref=sr_1_2?dchild=1&keywords=12+volt+electromagnet&qid=1590290905&s=hi&sr=1-2 then just find 12 bolt timer/battery and solar charger
Actually your folding ramp would work great with just an electro magnet www.amazon.com/Holding-Electric-Magnetic-Electromagnet-Fail-Safe/dp/B00JERC00S/ref=ice_ac_b_dpb?cv_ct_cx=door+electro+magnet&dchild=1&keywords=door+electro+magnet&pd_rd_i=B00JERC00S&pd_rd_r=7f040e9c-516e-47df-bbc5-0a323e74b420&pd_rd_w=kZVJ6&pd_rd_wg=fcifZ&pf_rd_p=d027eaac-7531-45fe-a61e- cand a timer, If you don't have 120v just buy 12 very DC electronic magnet and a battery solar charged....and a timer OR maybe even photo cell and a relay with normally closed contacts so when sun comes up it energised relay and opens circuit to cut magnet power...I use timer and screen door spring because our door slides horizontally ...if I had the ramp door I would use gravity
That is how you get it done using what you have on hand.
Even easier with a repurposed car window system.
Yes it would have been.
Can you do a video to show step by step how you did it?
Great idea and I would like to see a video that is more explanatory and drawings of how it is wired up please!!!
way too complicated if you ask me! ELECTROMAGNET to hold ramp door closed and timer to cut power in the morning then gravity opens door ...no motor no nothing magnet and timer duhh
Then how would it close? The force created by an EM is inversely proportional to the distance... VERY powerful close (< 0.25") and completely ineffective over about 2" of distance.
@@ZookeeperJohnG could you please explain what is switching it on in the morning to open the door and how?
Could you draw a diagram with hand and post the picture ? Thanks
Very clever!
Thank you! Cheers!
I'm a do it yourself guy too , like your idea , but would go to 12 volt drill and just use timers real cheap after Christmas . in fact I've got several old reversible drills , I'm going to use one to go up and one to just go down
The solar panel acts as the photo sensor in the first design. I then added a photo resistor and $8 high impedance DPDT relay which uses almost zero power to operate.
Higher voltage drills would work better as they would turn more slowly at the 9.6V I used.
Looks like you need a small spring on your DIY limit switches to make them reliable.
They seemed to be pretty springy, but not enough obviously.
tired of the wind. do away with wind noise and I will watch
Yea, I have not figured out how to over-dub the videos.
I suggest putting some kind of water proof epoxy on the light sensor. Humidity could short the leads and open the door. Also, the string will wear out one day , and any chickens that are outside will not be able to get inside to safety.
The DLR is covered with a small class jar and lid, pleased up side down. Because the string is easily visible, any wear could be addressed when/if it happens. Good suggestions tho!
Gave me a idea though! And I do a lot of repurposing reusing and recycling myself so good on ya for that .
Wind noise very distracting. Some audio very distorted.
Yea, horrible at some points, but that's TX weather for ya!
doesn't the drill have the reverse circuit built in? I wonder if you could some how wire to the door to the forward/Reverse switch to make it change directions? I just found an old drill which I am going to try and do with with.
You have mine beat by $25, but mine is way more secure.
ruclips.net/video/jYM0xZ8TwaA/видео.html
You have an update video?
13:15 BTW the whole reason you have to use a 15AMP fuse in YOUR system is because you are using different wire gauges, goin up and down in size. You need to be using a uniform gauge for this sort of stuff. For any wire that is for that actual motor you need to use wire that does not restrict the flow of current. it looks like you are going from 16 AWG to the motor, then feeding the relays (87 and 87a) with 18 Awg, then the fuse holder looks like a 20 AWg wires them back to the battery that is at least a 16 AWG.
Can you draw a wiring diagram? I’m not understanding how it goes forward and reverse
thepihut.com/blogs/raspberry-pi-tutorials/controlling-motors-with-relays
Relay coils are controlled by limit switches.
A wiring diagram would help out big time im tring to do the same thing..
Randy, I have one somewhere, let me see if I can add it.
Thanks big time. Hope your weekend was a good one.
Do you still have this diagram?
Could you please explain how do you switch it on in the morning to open the door ?
I understand that light sensor will switch on in the evening and close the door but what is switching it on in the morning ?
The photo sensor activates the relay to open in the AM and then close in the PM.
@@ZookeeperJohnG So the relay stays open (energised) all day ?
Are you using normally closed and normally open contacts of the same relay ?
@@ummahofsheeps7495 Correct, the LDR takes some energy from the solar panel to energizes the relay coil during daylight hours. The relay controls the Up-Down function, it has 8 terminals: 2-coil, 6 DPDT wired to provide "H-bridge" direction control of the actuator.
@@ZookeeperJohnG thank you very much. Appreciate it.
........pretty long story ....
BTW the simple $19 electro magnet is 130llbs of force! NO coyote could possibly overcome THAT! AND it is fail safe if the power goes out the door opens ...add a quality timer to break the circuit every morning and you have a VERY safe reliable door opener powered by either gravity or a $3 screen door closer spring! Also as I mentioned on earlier post you could also use 12v magnet with battery and solar charger ...even add a light circuit or electric fence wire to that if you wanted to...I had 120v handy so I just went that way...KISS (keep it simple stupid) ....120v magnet at Amazon on earlier post but here is an even stronger 12v one for about same price if don't have 120volt power handy~~> www.amazon.com/UHPPOTE-Holding-Electromagnet-Magnetic-Electric/dp/B00W3HRV1Y/ref=sr_1_2?dchild=1&keywords=12+volt+electromagnet&qid=1590290905&s=hi&sr=1-2 then just find 12 bolt timer/battery and solar charger
EASY?! YEAH FOR A 10-YEAR JOURNEYMAN ELECTRICIAN MAYBE LOL I'M AN IRONWORKER DUDE THIS IS WHY COMPLICATED I'LL JUST F****** ELECTROCUTE MYSELF
Diameter of the line?....can use nylon or braid line?.thanks
SORRY I can't. Too long. Sheesh
Actually your folding ramp would work great with just an electro magnet www.amazon.com/Holding-Electric-Magnetic-Electromagnet-Fail-Safe/dp/B00JERC00S/ref=ice_ac_b_dpb?cv_ct_cx=door+electro+magnet&dchild=1&keywords=door+electro+magnet&pd_rd_i=B00JERC00S&pd_rd_r=7f040e9c-516e-47df-bbc5-0a323e74b420&pd_rd_w=kZVJ6&pd_rd_wg=fcifZ&pf_rd_p=d027eaac-7531-45fe-a61e- cand a timer, If you don't have 120v just buy 12 very DC electronic magnet and a battery solar charged....and a timer OR maybe even photo cell and a relay with normally closed contacts so when sun comes up it energised relay and opens circuit to cut magnet power...I use timer and screen door spring because our door slides horizontally ...if I had the ramp door I would use gravity