Introduction: Tea Master 5000

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Hey everyone what's up!

So this is TEA MASTER 5000 which is basically a DIY Thermo Cup that heats the liquid inside or keeps it warm.

It uses a Peltier Module which is connected to a copper cup's bottom side. the colder side of Peltier is connected with a heatsink.

As we power the Peltier, the cold side gets colder and the hot side gets hotter.

The copper cup heats up and keeps the liquid inside it warm or even makes them hotter.

If we searched around, such devices already exist but they are AC Powered and cost quite much, my goal here was to make a DIY version of that by using things I have.

This Instructables is all about how I made this TEA MASTER 5000 and how you can do so.

PS- this name TEA MASTER 5000 was suggested by my friend Giovanni Bernardo aka CyB3rn0id.

Supplies

I used the following things in this project-

  • Copper Cup
  • Peltier Module 12V
  • Aluminum Heatsink
  • Thermal Paste (SIlicone based)
  • 3D Printed parts
  • DC Barrel Jack

Step 1: Peltier Module

I'm using Peltier Module in this project, for those of you who don't know what that is let me explain you in a few easy words.

It's basically a heater and a cooler at the same time.

Peltier modules are basically NPN Diode-like drive that contains two external ceramic plates, between these two plates semiconductor is present.

When it is powered ON, one side becomes cool by absorbing heat, and the other gets HOT by dissipating heat.

Here's a nice article if you want to learn more about this - https://www.cuidevices.com/blog/how-to-select-a-peltier-module

Step 2: Design

My Design is simple, there's a cup that will hold the liquid.

The bottom of that cup is attached to a Peltier module which is connected to a heatsink. there's a clamp that is added onto the cup which is connected with another part that holds down the heatsink.

This clamp and other parts are for keeping the Peltier module connected tightly with the cup's bottom surface.

Attachments

Step 3: Preparing the CUP

Now, this process is an additional one as what I'm using is an old cup that has been in my family for more than 40 years.

It's a copper cup from the 70s I think.

The problem with this cup was that its bottom had a crater in it. If I had to attach a Peltier module to its bottom then the bottom surface should be evenly flat.

So to fill this crater up, I use normal solder wire.

I heated it up with a Hot Air Station, solder wire melts and filled this crater.

If this setup was done with a soldering iron, doing so will not be possible as we first have to heat the copper itself then solder wire will stick to it.

After filling the crater with solder wire, I move on to the next step which was to attach the Peltier with this cup.

Step 4: Assembly 01- Using Thermal Paste to Attach Peltier Module to CUP

The Assembly process is pretty simple, I used thermal paste to first attach the Peltier module with its heatsink on the cold side.

I then applied the Thermal Paste to the bottom of the cup and then added the Peltier setup to it.

Thermal Paste will hold the cup and lower heatsink in its place but it's not an adhesive so this setup needs some kind of Makeshifter setup to hold the Peltier with the cup in a stationary state.

Step 5: Test 01- Power Consumption

Before designing any kind of setup for holding down the Peltier, I first tested this setup by hooking it up with a 12V SMPS and calculating its power by measuring down Current and Voltage.

The voltage it uses is - 11.27V

Current Drawn - 2.1A

Power - 23.6W

Step 6: Test 02- Water Heating Test

For the second test, I first took some water and added it to the cup.

I first measure the water temperature which was 16°C

Next, I added the positive and negative terminals of Peltier to a 12V Power source.

Starting Temp was 16°C which was taken around 5:10 PM, I took the next reading after 5 minutes and Temp rose up to 38°C.

I keep taking Readings at 5 min intervals for 25 minutes and these were my readings-

At 5:10- 16°C

At 5:15 - 38°C

At 5:20 - 45°C

At 5:25 - 55°C

At 5:30 - 59°C - I stopped taking readings after this, temp can be reach up to 70

Step 7: Result So Far

As for now, this setup is working perfectly.

Coldwater which was around 16°C is now 59°C, quite warm.

The time it took to make it warm was 25 mins which were long but it's working more or less.

The next Process is to 3D Print the parts for holding the Peltier module with the cup permanently.

Step 8: 3D Printing the Parts

I printed both parts with orange PLA on my ender 3 printer.

I used a 0.8mm Nozzle to cut the print time, printed both at 0.32mm Layer height at 50% Infill with supports.

I've attached the step file and fusion360 file both if you want to make your own version or edit the existing one.

Step 9: Assembly 02

I first gather all the 3D Printed parts.

I first started with putting the Clamp-on Cup and adding screws to tighten the Clamp.

Next, I added the Heatsink holder from below and connected it with Clamp.

after adding both 3D Printed parts, I added a barrel DC jack in its place and connected positive and negative terminals of Peltier to DC jack's VCC and GND.

Aaaand the assembly is completed.

Step 10: Testing With TEA

Now to test this setup for real now, I prepared some Honey Ginger Lemon Tea which I then left for cooling it down.

I pour some in the TEA MAKER 5000 and measure its initial Temp which was 33°C.

After keeping the setup run for 18 minutes, Temp rose to 53°C which is best to enjoy a good cup of tea.

Step 11: Final Result and Version 2

The result of this build was pretty good, this TEA MASTER 5000 is practical in a way. it does need a few edits in the body which requires a complete makeover that I will do in Version 2.

This is it for today guys, DM Me if you need any help regarding this project.

Thanks for reading this instructable and I'll be back with V2 Soon.

Peace