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24 May 2010
Author: Giorgos Lazaridis
Instant Cold Coffee Machine

Worklog - Making a model to see how it goes (March 13 2011)

It has been some 6 months since the last time that i updated this project. Many people sent me emails asking me if i quit making it. As a matter of fact, no, i did not quit making it. I just had some problems with time (mostly), and also i had to do some research for things that i am going to use for this. This is what i've done:

  • I did some research for touch buttons, because i decided to have touch buttons. During my research, i uploaded these:

  • I had an old scrap marine equipment, with a sleek LCD, and i wanted to see if it works and if i can use it for my project. I searched the internet from east to west, but i could find no info nor datasheet for this LCD. I also asked from the company that made this part for a datasheet, and also from other companies that sell it, but i got no response at all. So i had to find out myself how it works:

  • A temporary housing

    I went again to my friend, Christo Polidorou to cut and machine the woods with his amazing CNC. Christos has a new website in which you can see some of his wood designs. For the temporary housing, i will use scrap chipboard. The final coffee machine will be made with MDF wood (probably).

    This is the top cover of the box And that will be the middle separator This is Christos, cutting the side panels First, i screwed the side panels, the back and the top sides
    This frame will be the base for the rotary table The frame is places at the base of the box Above the frame lays the rotary table And the separator is screwed in the middle

    Mounting the shaker module

    First module to be mounted is the shaker. It must be fixed on the back:

    First i screwed the motor. Then i screwed the shaker base with the guides This is how it is mounted.

    Mounting the straw dispenser

    The straw dispenser is next. But there is something that needs to be taken into account. The straw dispenser has a vibrator motor. This means that the whole module has to vibrate with the motor, but the vibrations are not allowed to be transferred to the machine. Therefore, a suspension system has to be designed and the module must be fixed on this suspension. I searched all my part cabinets but i did not find any suitable spring or suspension. Then, i went outside to "get some sun", and i noticed that the suspension was all the time near me...

    The solution was there... by the mop! I cut a piece of water hose And i made holes for M3 screws I screwed 2 pieces on an L base
    Then i drilled 2 holes on the aluminum piece of the stinger And i fixed the L base on this aluminum piece Notice that the L base is NOT directly screwed on the stinger I fixed the L base on the coffee machine

    It works so AWESOMELY FINE, that i am amazed. One last touch...

    An empty chocolate container... Was not that hard to empty it! I cut the cover with the router There is a hole right above the straw dispenser with
    The bright cover is firmly fixed in this hole And the container can be screwed... The straw dispenser is now accessible from top

    The sugar and coffee dispensers needs a funnel

    Next module is the sugar and coffee dispensers. As a matter of fact, those modules needs no mounting at all. But a funnel needs to be mounted right under the dispensers, to drive the material in the middle of the glass, otherwise there will be a mess. The funnel must be easily removable to clean it:

    The sugar and coffee dispensers needs no mounting, only a funnel underneath I will use these electrical connectors for fixing the springs I found 2 similar springs from my parts cabinet This metallic plate is perfect for the job, like if i had designed it for this!
    The spring goes on one side of the plate Then i fixed the spring on the side of the housing This is how the spring and the plate is fixed I made another similar spring with a similar connector
    And i fixed this spring on the other side with a longer screw This spring has a hook-end, while the previous was permanently fixed on the plate The metallic plate can suspend on these two springs The hole in the center of the plate is perfect! The funnel is now secured!

    I began making this project on 24 of May 2010. Today, is the first time that i have "visual contact" with my wanna-be coffee machine. There are still a lot to do, but at least i see something.



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  • At 3 July 2015, 6:23:11 user Alex wrote:   [reply @ Alex]
    • Still watching this space every other month only to find the project still not being updated. Hoping to see some progress soon. :)

  • At 28 March 2014, 3:28:25 user Nikos wrote:   [reply @ Nikos]
    • re si, nomizo the "redux" version should have an optional milk stage too for those of us who prefer it a bit easier to drink :)

      subscribed on YT, keep up the good work!

  • At 18 January 2014, 7:31:43 user Giorgos Lazaridis wrote:   [reply @ Giorgos Lazaridis]
    • @Alex In Greece during the Ancient times there was this saying: "Oyden monimoteron ek toy prosorinoy" which means that "nothing is more permanent than the temporary".
      But now that you said that again, i think i should restart this project, shouldn't I? Hopefully within this year.

  • At 17 January 2014, 19:59:52 user Alex wrote:   [reply @ Alex]
    • Dude what happened with this project, there hasn't been any updates for quite some time now. Looking forward to see the end result :)

  • At 13 November 2013, 17:56:48 user Robert wrote:   [reply @ Robert]
    • This is a great invention! I especially like the straw delivery, it is perfect. how wonderfully useless! you are a genious!

  • At 16 September 2013, 15:38:37 user praveen wrote:   [reply @ praveen]
    • excellent job......

  • At 14 June 2013, 17:45:35 user Amir wrote:   [reply @ Amir]
    • Hi ,

      Great work . From where did you buy the worm gear extruder ? Can you give me a website for that .

      Many thanks

  • At 29 March 2012, 21:03:02 user alex wrote:   [reply @ alex]
    • Hi you have a nice coffee Instant Cold Coffee Machine but you wanted to use a fridge for cold water but no water cooler that you use waron also in coffee automaaten is where you can get I know old water out of if not the name but it can look for you we have that built-in devices greetings alex
      mail alex.heijkens@kpnmail.nl

  • At 6 March 2012, 10:25:13 user Giorgos Lazaridis wrote:   [reply @ Giorgos Lazaridis]
    • @steve salvaged from an old photo copier. it was used to push the toner

  • At 5 March 2012, 13:56:29 user steve wrote:   [reply @ steve]
    • Where did you found the worm gear for the sugar and coffee supply?And awesome project.Good Job

  • At 9 January 2012, 9:40:16 user qwerty wrote:   [reply @ qwerty]
    • Tromeri i frapediera sou.bravo sou

  • At 24 August 2011, 11:38:08 user a.mira@vmcogulf.com wrote:   [reply @ a.mira@vmcogulf.com]
    • niccccccce i like this machine :) did you manufacuter it ???

  • At 26 July 2011, 17:53:16 user Sergio wrote:   [reply @ Sergio]
    • Excelent Job! Very good videos an explanations.


      Segio from Argentina

  • At 24 May 2011, 15:00:24 user Kammenos wrote:   [reply @ Kammenos]
    • @Fung no of course not. i will have different programs for different sizes. there are 4 sizes of cups (in respect to the volume)

  • At 24 May 2011, 14:24:55 user Fung wrote:   [reply @ Fung]
    • Do the cups which being used are restricted to the same size and same volume? (ie other cups are not allowed?)

  • At 14 May 2011, 19:27:58 user Ivan wrote:   [reply @ Ivan]
    • Great work.....

  • At 27 April 2011, 4:54:19 user Kammenos wrote:   [reply @ Kammenos]
    • @Dimitris it was part of an old photo copier, used to push the toner.

  • At 26 April 2011, 20:23:01 user Dimitris wrote:   [reply @ Dimitris]
    • Congratulations man!
      Awesome machine!
      Can you tell me, where did you find the 'worm' thing
      for the dispenser mechanisms?

  • At 27 March 2011, 6:16:30 user Kammenos wrote:   [reply @ Kammenos]
    • Hello George. Regarding the elements, these are hardware wiring to indicate wire connections between the modules. The orange boxes indicate wires coming from the output module (Digital Output Module - DOM), and the green indicate wires going to the Digital Input Modules. Notice that for example, from module "Rotary table", 4 wires comes out, then 2 of them arrive from the DOM and 2 goes to the CPU.
      As far as the diode is concerned, this is only for polarity protection. It is the same as the D2. But you are right, It is not necessary and i may not put it after all.

  • At 27 March 2011, 5:57:10 user George Hadley wrote:   [reply @ George Hadley]
    • I think your architecture diagram (first figure) is slightly confusing, because it seems to include elements of code (the elements above the CPU) with hardware elements. Ideally, you would have a system-level block diagram detailing your hardware and a separate functional block diagram to describe your code. If I'm misreading your architecture diagram, feel free to ignore this.

      Secondly, looking at your reset circuitry, I see you have a 1N4148 diode between your microcontroller pin and your ICSP header (pin 1). I'm fairly certain this diode is not necessary, so you may want to double check that.


  • At 25 March 2011, 11:45:30 user Fung wrote:   [reply @ Fung]
    • Why does PIC16F1937 have 2 Vdd's and 2 Vss's?

  • At 12 March 2011, 16:40:13 user de.das.dude wrote:   [reply @ de.das.dude]
    • you are sooooo awesome!!!

      there are no words to describe your awesomeness!

      i hope i can be as awesome as you!

  • At 25 May 2010, 1:53:39 user Tom Hargrave wrote:   [reply @ Tom Hargrave]
    • Frappé has become very popular here in the States. The difference is we use fresh coffee grounds to make coffee then we chill the hot coffee. But we tend to make more fresh coffee here while Europeans tend to make more instant coffee.

      To serve we pour some in a glass and add chipped ice.

      We also tend to add flavors to our frappé in the States. We can't leave a good thing alone - we have to tinker with it to make it more sellable.

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