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Gadget Freak Case #245: The Programmable Crock-Pot

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Rob Spiegel
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Necessity the mother
Rob Spiegel   8/12/2013 12:48:30 PM
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Here's another good example of a gadget created out of pure necessity. I hope some great food came from this solution.

szyhxc
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Re: Necessity the mother
szyhxc   8/12/2013 4:05:32 PM
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We do eat well here!  I'll watch for other comments or questions.

Rob Spiegel
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Re: Necessity the mother
Rob Spiegel   8/12/2013 5:12:05 PM
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You'll get plenty of other comments, Bernie.

Ann R. Thryft
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Re: Necessity the mother
Ann R. Thryft   8/12/2013 6:20:05 PM
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I love this--I want one that also works with a bread machine.

Charles Murray
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Re: Necessity the mother
Charles Murray   8/12/2013 6:51:24 PM
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I agree, Ann. Great idea. This was a need waiting to be filled.

szyhxc
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Re: Necessity the mother
szyhxc   8/12/2013 7:50:00 PM
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Ann,

The device will not work with appliances that have to be programed.  If your bread machine can be turned on, unplugged and then plugged back in and if it then comes bck on; it will probably work with the timer.  If it has to be pre-programed, the program will be lost when the timer runs.

Ann R. Thryft
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Re: Necessity the mother
Ann R. Thryft   8/16/2013 1:00:38 PM
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Drat, sorry to hear that, although I had a sneaking suspicion you were going to say that, Bernard.

Rob Spiegel
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Re: Necessity the mother
Rob Spiegel   8/12/2013 8:41:11 PM
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It could probably be converted easily enough to run a bread machine.

LarryB
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Re: Necessity the mother
LarryB   8/13/2013 12:43:29 PM
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Nice idea, might want to consider taking it one step further, since you use a SPDT timer, just add a duplex outlet and make one a delayed start and the other a timer function....

szyhxc
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Re: Necessity the mother
szyhxc   8/16/2013 4:38:02 PM
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I proposed that but in the end built what my customer wanted.  I may make such a device for myself time permitting.

Ann R. Thryft
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Re: Necessity the mother
Ann R. Thryft   8/16/2013 1:01:59 PM
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I hope the timer could be converted to run a bread machine, Rob. GTOlover's comment sounds like that's true.

szyhxc
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Re: Necessity the mother
szyhxc   8/16/2013 4:39:52 PM
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Ann, Their is nothing that can be done to the device but you may be able to modify the bread maker.  I don't know much about them.

Ann R. Thryft
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Re: Necessity the mother
Ann R. Thryft   8/19/2013 6:23:22 PM
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Thanks, Bernard. I still think the delayed timer for the crockpot is a nifty idea.

szyhxc
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Re: Necessity the mother
szyhxc   8/20/2013 7:40:00 AM
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Thank you and your welcome

szyhxc
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Re: Necessity the mother
szyhxc   8/20/2013 7:40:01 AM
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Thank you and your welcome

szyhxc
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Re: Necessity the mother
szyhxc   8/20/2013 7:40:05 AM
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Thank you and your welcome

mrdon
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Re: Necessity the mother
mrdon   8/20/2013 8:48:59 PM
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szyhxc

Although we leave in a world with complex electronic devices, the simple gadgets provide the best solutions. Great video!

Cabe Atwell
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Re: Necessity the mother
Cabe Atwell   8/27/2013 1:56:09 PM
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Delayed cooking combined with a slow cooker? Ingenious, it always fascinates me what people come up with when presented with a problem.

mrdon
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Re: Necessity the mother
mrdon   9/1/2013 6:40:58 PM
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Cabe,

I agree. Its amazing how human ingenuity and practical problem solving can create the best solutions to solving tough challenges. The better mouse trap is just around the corner!

Soldering Gunslinger
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Re: Necessity the mother
Soldering Gunslinger   9/3/2013 3:44:09 PM
One minor problem with delaying the start of the slow cooker is really quite small...Bacteria.

If a food product sits too long at room temperature, bacteria which can and often does cause food borne illness can multiply, add to that the slow ramp up to cooking temperature and the relatively low cooking temperature, specially at the low and slow setting of many slow cookers and you have a wonderful incubator.

Remember, it is usually not the actual microscopic creature which causes the illness, it is the toxins which the little assassins create which make you ill (or worse).

Delay the start of cooking as little as possible and get the food from Refrigerator temperature to cooking temperature and back with alacrity, and you will minimize the possibility of creating a food borne Frankenstein...Beans...Frankenstein...Beanie-Weenies and a Stein of Beer...Gotta get that  Slow Cooker out for Beans...

 

I remain,

 

The Old Soldering Gunslinger

Rob Spiegel
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Re: Necessity the mother
Rob Spiegel   9/3/2013 8:54:48 PM
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Good points, Soldering Gunslinger. Hadn't thought of the delay-timed crock pot as a quick cooker for bacteria. But it's true indeed.

Droid
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Why ?
Droid   8/13/2013 8:41:33 AM
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Interesting, BUT....at the risk of sounding mean,..... Why waste time doing this when you can buy a crockpot ready made (and cheap) that already has a built in timer. (We have one)...   Or why not just buy a cheap timer that can be programmed to turn on at a specific time. 

armorris
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Re: Why ?
armorris   8/13/2013 9:53:08 AM
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I imagine that if you don't have the parts on hand, it would cost about as much as a new crockpot to buy the parts for this project. Still, it's a simple solution that could be used for other things as well.

szyhxc
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Re: Why ?
szyhxc   8/16/2013 4:41:35 PM
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We shopped extensively to find a pot that could be programed to delay the start.  All we found were one that could time the run.  What brand do you have that will do this?  

The other option you offer was discussed but again my customer did not want it.

GTOlover
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My crockpot already does this!
GTOlover   8/13/2013 8:46:02 AM
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My wife has a crockpot that already does this. She has had it for about 6-7 years. It has a timer that you program for the ON time, length of time on high, and then it goes into warming mode. I think it even automatically turns off after 8 hours.

As a side note, I took an old coffee maker and removed the timer and relay so my wife can also time the bread machine. But she never seems to use it. She likes to be around when the machine is cooking bread. I guess she wants to actually enjoy the smell of bread cooking.

Rob Spiegel
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Re: My crockpot already does this!
Rob Spiegel   8/13/2013 3:20:37 PM
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Intersting note on the bread machine, GTOlover. There are some things we just don't care to automate.

szyhxc
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Iron
Re: My crockpot already does this!
szyhxc   8/16/2013 4:45:56 PM
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I sort of remember seeing somthing like this, but we could not find it in today's market place.  Do you recall what brand it is?

Cadman-LT
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Platinum
OMG
Cadman-LT   8/14/2013 4:01:36 PM
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I am a crock pot fanatic. I love this!

hcnm
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Iron
Food safety first
hcnm   9/3/2013 3:45:56 PM
A caveat for using this device - be mindfull of the types of foods used and the length of the delay.  Leaving meats or other perishable foods at room temperature while waiting to start the cooking cycle is an open invitation to some nasty bacterial growth and subsequent illness.  Food poisoning is, at best, no fun and can be deadly!

William K.
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Re: Food safety first
William K.   8/15/2014 11:58:22 PM
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A simple way to keep safe and not let that stuff go bad would be to use the timer to bypass the low heat setting. The way to have a low heat setting with only one thermostat is to use a light dimmer to drop the input power to the point that the pot just is"hot." This would take a bit of experimenting but it would not be hard to do. Then the timer bypasses the dimmer at the time when full heat is needed and as the pot warms the internal thermostat will take control.

Of course, for the price of a decent time switch at Graingers you can buy a crockpot with that timer function built in. The cheap way would be to get an oven timer from an old electric stove, which has a delay-to-start setting as well as a time-to-cook function. And the timer would be free for the salvage effort. But you would still need thge dimmer switch.

JenniferEE
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Iron
Solder on stranded wire ends...NO NO!!
JenniferEE   9/3/2013 4:02:49 PM
Never solder-tin stranded wires that will be placed under a screw or set-screw! This is against UL regulations and other certification agencies for a GOOD REASON!  Over time, the soft solder will deform and the compression that once existed will lighten up. At some point the joint can even become loose. When this happens, the joint will become resistive and produce heat, or even arc, becoming a fire hazard. The same applies for so-called screwless termination, where wires are inserted into a hole in the device, where a sharp edge will contact the conductor.  There are soft copper "tubes" that can be placed over stranded wires and compressed into place,  that are designed specifically for holding stranded wire under set-screws and screw heads. These can even be found at Lowes and Home Depot, they are not exotic and hard to find.  It may also be advisable to use a silicone dielectic grease on the bare copper to prevent any potential of oxidation over time.  One other thing, Extension cord wire is NOT rated to be squezed in a screw tightend strain releif-compression fitting, as illustrated. The fitting shown is designed for Non Metallic Jacketed solid core house wire, also known generically by the brand name Romex. If you are going to apply squeese perssure to lamp cord, you are asking for trouble as the insulation deforms and can eventually be penetrated. It would be best to use a flexible insulating sleeve over the lamp cord to protect the jacket material and distrubute the forces such that the likelyhood of eventual failure is reduced.    Food safety......Foods should not be kept at room temperature for very long. That is a different subject that electronics, and not specific to the controller, but I for one, would not want anything I'm going to eat to be out at room temperature for an extended period of time before cooking would begin.  I suppose if the food was frozen before being placed in the slow cooker, that might be partially acceptable, but I question the need for a delay start of a slow cooker in the first place, simply on basis of food safety protocols.  Just putting your frozen foods into a slow cooker and placing it on LOW setting will bring the temperature above the minimum for bacterial safety, and give you well over 8 or 12 hours of time without over-cooking. They make heat settings on most slow cookers for a reason.

First, be safe!

NedFreed
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Silver
Re: Solder on stranded wire ends...NO NO!!
NedFreed   9/6/2013 8:05:50 PM
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I agree that putting tinned (or small strand untinned) copper wire under a screw is a bad idea, and putting it into one of those screwless push-in terminations is even worse. (I never use those, not even for the sort of wire they're designed for.) However, I can't really agree with your recommendation to use copper crimp sleeves instead. Most of these aren't designed to put under a screw either - in fact I don't believe I've ever seen any for that purpose sold at Lowe's similar stores around here. They may have the ones for screwless push-in terminations - I think they're mainly designed for speaker connections - but I sure wouldn't use one.

A solution that is readily available is a crimp on ring or flanged fork crimp on connector. Make sure you use the right size for your wire gauge, and if you're worried about stranded wire pulling loose, you can solder it to the connector as long as you're careful not to get solder on the part that goes under the screw.


As for getting the wire in and out of a box, you may be able to use a regular strain relief grommet appropriately sized for the wire if the enclosure walls aren't too thick.

Rivale2013
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Iron
Slow Cooker
Rivale2013   9/4/2013 8:59:04 AM
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Another solution to the slow cooker dilemma is Hot-Logic, with Hot-Logic it not only perfectly cooks your food but holds it at a pathologically safe temperature all day without boiling, burning or drying out your meal. We use of these at work and I gotta tell ya this thing is really great, I've seen guys leave stuff in for twelve hours if not longer with out issue...

BillB_NH
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Iron
Store bought timer
BillB_NH   9/4/2013 9:04:36 AM
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I'm probably going to be accused of missing the spirit of this submission, but why not use a store-bought timer? I know I'm not the only one to suggest this, and for less than $10, they are very readily available:

http://www.homedepot.com/p/Defiant-15-Amp-24-Hour-Plug-In-Heavy-Duty-Mechanical-Timer-with-2-Outlet-49807/203677447

Keldawwg
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Food poisoning? Wow...
Keldawwg   9/4/2013 10:17:52 AM
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That's actually the second concern I had, and I immediately dismissed it.

When I was a young single guy in colllege and after I got out and started working, I had a habit of making myself a gourmet meal of Chili and hot dogs... I would make a big pan of chili and slice up ot dogs to throw into the pot.

When it was done cooking, I would serve myself whatever I wanted to eat that night, and the leftovers I just left on the stove.

The next day, I would just reheat what was left over and finish it off.

I have never had food poisoning in my life. I have been to a big barbecue where 20 out of 25 people that attended got food poisoning... I have also been to Mexico where literally the entire group got food poisoning... With the exception being me.

I always attributed my lack of being poisoned with my habit of continually exposing myself to all kinds of bacteria... My immune system was always up to the challenge.

The other question I had was this... What happens if you set that thing to go off, and then something happens to prevent you from coming home at the time you expected? Your timer would never shut off. It would simply be on forever... Or until your meal was a dried up mess completely baked to the bottom of the crockpot.

If I were you, I would just buy a Titan Controls Apollo 6 timer. Very easy to use, and quite cheap. (It has a suggested retail price of $14... But you can get them cheaper than that...)

You simply twist the dial to set the time on the timer. Then, when you want it to go off, you start filipping the switches down. There are 96 swithches, each switch is for 15 minutes. Flip the switches until you've got them flipped for as long as you want... Each four you flip means it will be on for an hour... Flip 16 of them down, and it will cook for 4 hours... BUT, when there are no more switches flipped, it will then turn the circuit back off. If you don't come home for days, it will repeat the cycle for 4 hours every day until you unplug it... But this is cheaper and just as easy as your solution... And a bit safer, too...

And, you don't have to build a thing... Just plug the timer in, and plug the crock pot into it. It's rated at the full fifteen amps... Which is plenty.

The Intermatic timer that I use for my christmas lights would also work. And it has the same ability to turn the circuit back off. I bought that timer 20 years ago, and it's still working perfectly after running my christmas lights every year for twenty years. I can't imagine that it cost me $10... Probably $6... But that was twenty years ago...

I just don't really think that setting a timer to start cooking something and it has no function to turn the cooker off is really all that good an idea...

My two cents worth...

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