Mr. Java

Temporary Installation

Mr. Java has been designed so that it can be transported and set up for trade shows, exhibitions and the like. However, there are a few requirements that must be met for this to occur, as Mr. Java is a reasonably complex machine. Mr. Java is based around an Acorto 2000 coffee machine from Acorto at 800-778-0990, who are very willing answer any questions.

Water

On the road, Mr. Java's water supply comes from barrels of spring water, of the regular kind used in offices everywhere. However, the Acorto 2000 requires 30psi of water pressure, and so the following setup is employed

water barrel->hose->pump->accumulator tank->width converter->filter->input hose

specifically:

hose
1" hose feeds to
pump
Shurflo Demand Water Pump #200 30-21-030 $69.95
R.V. America: supplier of pump, tank
Channelview Supply, 15008 I-10 East, Channelview TX 77530
281-452-7760
screws directly (but carefully! threads can and have been broken) which is why we now use an extension piece into
accumulator tank
ACCUMULATOR TANK S0 $48.95
same supplier.
width converter
converts 1/2" connection on tank to 1/4" connection on filter; Metro Pipe and Supply.. Harder to find than you might think.
filter
Not necessary if using spring water: if using tap water filled spring water barrels then is necessary. Direct from Acorto (800-778-0990).
input hose
connected to machine. 1/4 inch inside diameter feed.

This setup is necessary to maintain the 30psi Mr. Java requires. If wired directly into a building's plumbing suppply only the filter and input hose are necessary. Do not use 1/4" PFA tubing for water lines. Use teflon pipe tape (1-2 wrappings on all connections)

Drainage

The Acorto 2000 produces two kinds of waste: coffee grounds, housed in their own container, and liquid waste: milk and water run-off. It outputs a 1/2" tube which on the road is fed into another spring water barrel - we have one painted black with a single unpainted strip to see how full it is along one side, as it looks pretty nasty after a while. This barrel must be emptied daily, possibly more. The drain hose must have a continuous rate of fall to stop material from building up.

Power

Mr. Java requires a a 208Vac 30amp dedicated circuit with a Nema L14-30 receptacle.
For 1-phase systemL1 to Gmd = 110Vac-120Vac, L2 to Gmd = 110Vac-120Vac, L1 to Neutral=110Vac-120Vac, L2 to Neutral=110Vac-120Vac, and L1 to L2=208Vac-240Vac, Gmd to Neutral=0Vac. Note: this a very specific power requirement with a specific receptacle and should be planned well in advance.

Shipping

Mr. Java weighs ~285lbs and is approximately a 30" cube. This requires relatively serious planning to ship.

Displaying

Mr. Java is presently displayed on a custom-ordered steel Metrorack. It is six feet six inches high with three shelves: one at six inches, one at three feet and one at six feet and is on wheels. The rack itself is 24"x36".

Supplies

Mr. Java consumes espresso beans, decaf espresso beans, milk and water. For cleaning it requires Cascade powder and two specialized cleaning solutions from Acorto.

Computer

Mr. Java's present design, due to its prototype nature, requires an external computer. In Mr. Java I's permanant home on the third floor of the media lab, he uses the following setup running Win95. Our supplier for this was www.computercomputer.com, for a total cost of <$700.

200 MMX barebones computer w/32MB RAM

soundblaster 16

soundblaster CS200 speakers

standard svga 2mb

3Com Etherlink ISA Combo (3C509)

Fujitsu 2.0 gig