Re: Coretto down
[quoteThe new vac motor shouldnt have a problem either as its been removed from the cleaner it came form, so no plastic body to worry about.
The buckets will give more air space around the motor than the cleaner body did and hopefully the fast expelling of the air from the buckets will work just as well as it does with my shop vac. [/QUOTE]
Most if not all vacuum cleaners have a cut off switch if they get to hot
Its part of Australian safety standards
And it takes a lot more heat that 2 to 4 minutes of cooling hot beans to trip the safety switch
KK
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Re: Coretto down
Sucking does present the problem of the beans clumping together.Originally posted by 22a link=1220570246/20#21 date=1220770682Ive always been a fan of blowing air through the beans rather than sucking air through them. If I do the latter and use a vacuum cleaner motor is there any problem with heat going through plastic parts? It wont be hot enough to deform them will it?
Also, approximately what size is a vacuum motor? Ive got an old 5L Heineken keg that I think would look dashing mounted to the side of the BM if I can fit the motor and collander inside
However there is no danger of them blowing away.
My shop vac doesnt have a problem with the heat as it is immediately expelled so the motor gets very little exposure.
The new vac motor shouldnt have a problem either as its been removed from the cleaner it came form, so no plastic body to worry about.
The buckets will give more air space around the motor than the cleaner body did and hopefully the fast expelling of the air from the buckets will work just as well as it does with my shop vac.
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Re: Coretto down
I made my cooler with chipboard to create a box, a $15 exhaust fan from Bunnings and some aluminium flyscreen fixed to the top for beans to sit on, it works a treat and has the beans cool well under 2 minutes. It is nice and compact and hangs on a hook on the wall when not in use. Total cost around $22.
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Re: Coretto down
Hey all - Ive been using a $5 plastic bucket/bowl and a $15 exhaust fan with great results for a couple of years now. I just cut a hole in it to take the fan (so it hangs out the bottom) and then put some fine mesh over it to stop it becoming a bean flinging killing machine, and then put 3 door stoppers (the ones you attach to the wall to stop the door slamming into it, as feet to give the airflow underneath. Cools beans really quickly which means you can take them further in to the roast and still pull them back before oiling them up. Ive found that they cool in under 2 minutes (often well under) and present with a sweeter taste than cooled otherwise - even in a commercial drum roasters fan cooler with sweep arm!
I posted this some time ago with a pic but I think you can imagine it
cheers
Jon
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Re: Coretto down
Ive always been a fan of blowing air through the beans rather than sucking air through them. If I do the latter and use a vacuum cleaner motor is there any problem with heat going through plastic parts? It wont be hot enough to deform them will it?
Also, approximately what size is a vacuum motor? Ive got an old 5L Heineken keg that I think would look dashing mounted to the side of the BM if I can fit the motor and collander inside
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Re: Coretto down
That’s the way I did it same as TGOriginally posted by Thundergod link=1220570246/0#19 date=1220749692My idea is to use 2 buckets, 1 inside the other.
Ill cut a hole in the bottom of the top bucket to fit the motor into.
That seemed easier than trying to mount the motor inside one bucket.
It also raises the height of the cooler, so less bending to empty the beans into it.
Cut an air exit hole in the bottom bucket and a small one for the power cord.
Mount the colander onto the top bucket and away we go.
At first I was going to build legs for the bottom to allow for height to accommodate the exhaust fan
But found fitting another bucket inside the other was easier and it also provided shielding for the electrics
Works so well for such a simple idea [smiley=tekst-toppie.gif]
KK
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Re: Coretto down
My idea is to use 2 buckets, 1 inside the other.
Ill cut a hole in the bottom of the top bucket to fit the motor into.
That seemed easier than trying to mount the motor inside one bucket.
It also raises the height of the cooler, so less bending to empty the beans into it.
Cut an air exit hole in the bottom bucket and a small one for the power cord.
Mount the colander onto the top bucket and away we go.
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Re: Coretto down
Thats a pretty good idea. I hadnt thought of gutting a vacuum cleaner. It would be a lot smaller than a leaf blower and could be built into a small housing on the side. I really do just need a shed I can do this in
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Re: Coretto down
More like bean launcher I think
The velocity will be a little high. More volume and lower pressure would be better to save the wastage of the litle brown nuggets 
If you want a source of fans these guys in Oz have a really god range (most circa $20 or less) and shouldnt have any problems posting across the ditch. http://www.rockby.com.au/searchres.cfm?select=13 Even if it is one that runs on 12V grab an old PC power supply and use the 12V Rail off that (normally Red and Black wires) even the old ones will handle 5-8A.
BTW I dont mean the PC sized fans either go the bigger ones or even a a small r/\/adiator fan would do.
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Re: Coretto down
Ive been think along similar lies.
I have the room but setting up my cooling bucket by attaching it to my old shop vac can be a pain and I actually forgot once recently.
My son sourced an new vacuum cleaner motor which I plan to build into a bucket.
That will save the space of the shop vac, then I only need to attach it to or store it on my roasting trolley.
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I think this is a good lesson in having contingency plans ready. Thankfully the BM in my original roast died before Id even turned on the heatgun so I didnt have to rush to the rescue with my MWA (manual wooden agitator). The popper did a nice job of fixing everything in the end.
Im also thinking of reworking my cooling system. You might remember it as the giant fan mounted inside a rubbish bin. I dont have a shed so I have to move my equipment outside and then back in everytime I want to roast and the current cooler is just too bulky and annoying.
So Im thinking of something I could mount to the side of the breadmaker so it would all be one unit. What do you guys think of a leaf blower? Small enough to not be too much hassle? I thought it could have a tin for the beans to sit in with mesh at each end.
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Re: Coretto down
Me too ;D... Except mine is just a short length of 9mm dowel,Originally posted by Thundergod link=1220570246/0#13 date=1220707163I have one of those that I used to use pre-corretto.
Its been sitting in the corretto between the pan and the side (just in case) ever since it retired.
Mal.
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Re: Coretto down
I have one of those that I used to use pre-corretto.
Its been sitting in the corretto between the pan and the side (just in case) ever since it retired.
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Re: Coretto down
You just need to keep a reserve device handy. Providing the power source can cope with the remaining time of the roast you wont even have to stop They even come in a range of sizes and constantly variable speed control for faster or slower bean agitation
A little spooky on the new belt but
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