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Homeroasters - Home Roasting Coffee Community » BUILDING A ROASTER » Bean Cooler

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Very old shop vac
Lawnmowerman	#1 Posted on 06/06/2012 2:14 PM
Pounder Posts: 546 Joined: March 14, 2012	Here is a teaser.more to follow. Lawnmowerman attached the following image: Bad coffee prevails when good coffee roasters stand by and do nothing.


Lawnmowerman	#2 Posted on 06/06/2012 2:20 PM
Pounder Posts: 546 Joined: March 14, 2012	I am going to get some food grade tubing and clean the ends real well. Make a drop in basket reciever of sorts. It says rainbow on the top and was intended to be used with a water bath. Bad coffee prevails when good coffee roasters stand by and do nothing.


Lawnmowerman	#3 Posted on 06/06/2012 2:25 PM
Pounder Posts: 546 Joined: March 14, 2012	I missed a step. Will adapt old ends to new tubing. Any way this thing sounds like a jet engine! I just tried it once and it needs a plug. More later Bad coffee prevails when good coffee roasters stand by and do nothing.


ciel-007	#4 Posted on 06/06/2012 2:33 PM
1 1/2 Pounder Posts: 651 Joined: April 03, 2012	Quote Lawnmowerman wrote: ... it says rainbow on the top and was intended to be used with a water bath... Well, I guess there's nothing quite like a cold bath to cool them hot smoldering beans... Ciel... seeking Heaven in my cup with ................................................................................................................. EXPOBAR Brewtus II - MAZZER Mini E - MAHLK?NIG Vario - GeneCafe - RAF-1 Extreme (Modified B-2 HOTTOP) - BellaTaiwan XJ-101


JETROASTER	#5 Posted on 06/06/2012 2:59 PM
Administrator Posts: 1780 Joined: March 06, 2010	It's a Rexair Rainbow 'D-2' with the extra large water tank. This machine played a role in the naming of 'R2D2' of "Star Wars" fame. One of these was the powerplant of the first roaster I ever built. Sadly , no photos survived of the ugly beast. The blower/motor is great. 3 fans, ball-bearing, bypass blower. All metal housings+ bypass = very heat tolerant. The water tank won't do you much good unless it is the aluminum one(pretty rare) Good Luck! -Scott Edited by JETROASTER on 06/06/2012 3:08 PM


JETROASTER	#6 Posted on 06/06/2012 3:34 PM
Administrator Posts: 1780 Joined: March 06, 2010	Here's a shiny version! (just installed a new cord +bearings) ....and one of it's predecessors, the 'Rexair B' -Scott JETROASTER attached the following images:


Lawnmowerman	#7 Posted on 06/07/2012 1:51 AM
Pounder Posts: 546 Joined: March 14, 2012	I wouldnt be using a water bath in a bean cooler. Im hoping to configure a reciever basket at the same plane that the hose enters the side, kind of shaped like a cake tin made of fryer basket mesh. It could just remove the basket after cooling. Lawnmowerman attached the following image: Bad coffee prevails when good coffee roasters stand by and do nothing.


Lawnmowerman	#8 Posted on 06/07/2012 2:05 AM
Pounder Posts: 546 Joined: March 14, 2012	R2d2? Yes i do see a bit of a resemblance. Lawnmowerman attached the following image: Bad coffee prevails when good coffee roasters stand by and do nothing.


JETROASTER	#9 Posted on 06/07/2012 11:23 AM
Administrator Posts: 1780 Joined: March 06, 2010	Sorry, I spoke too soon. The early D-2 models were a flow-thru motor. This means the 'working' airflow is what cools the motor. For a small batch of coffee this would probably still be OK. Later models kept the motor section separate from the working air...using a smaller fan to keep the motor cool. There is also a chance that it was converted somewhere during its lifetime. -Scott JETROASTER attached the following image:


Dan	#10 Posted on 06/07/2012 11:50 AM
1 1/2 Pounder Posts: 1662 Joined: October 24, 2005	Those triple impeller vacuum motors are hard to come by unless you buy new.
	Web

atalanta	#11 Posted on 06/07/2012 2:48 PM
1/4 Pounder Posts: 89 Joined: April 27, 2012	All I could think of in the first pic was it saying the ubiquitous: "Take me to your leader." LOL


oldgearhead	#12 Posted on 06/07/2012 6:43 PM
1 1/2 Pounder Posts: 1128 Joined: February 10, 2011	Cool product! The vacuum reminds me of my 'Huggy' builds. Send me your vacuum and all I need is two gearmotors, a 6-channel RC xmitter (with V-tail control), a wireless mic setup, a pitch-shfiter, a handful of servos, and a big battery...hummm.. oldgearhead attached the following image: No oil on my beans...

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