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Closed loop drop-BOB: the only cold drip coffee maker you can count on!

Request a custom order and have something made just for you.

Closed loop drop-BOB: the only cold drip coffee maker you can count on!


Only 1 available

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Response time: within 24 hours


  • Handmade item
  • Materials: wood, steel, cast, iron, industrial, arduino, pcb, electronics, 3dprint, epoxy, PLA, Glass, Brass
  • Made to order
  • Favourited by: 30 people
  • Gift message available
This shop accepts Etsy gift cards

Shipping & returns

Ready to ship in 1–2 weeks
From Canada
CA$50.00 shipping to Canada
Returns and exchanges accepted
Exceptions may apply. See return policy


A cold drip coffee maker that is set and forget. the closed loop system allows for a stable drip at exactly the rate you want it. The Open source software allows you to make it yours. The off-the-shelf design allows you to modify and augment it! The always connected WIFI design lets you control it and modify parameters on the fly from anywhere.

The community base supports you and helps you grow!

Important Note: Currently in Beta phase. All units hand built. Lead time may vary, production and purchase runs grouped to keep costs down. Exact colors or features may vary.


5 out of 5 stars

Payment options

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  • GiftcardAccepts Etsy Gift Cards and Etsy Credits
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Other options
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  • Other Method

Returns & exchanges

I gladly accept returns and exchanges
Contact me within: 14 days of delivery
Ship items back within: 30 days of delivery
I don't accept cancellations
But please contact me if you have any problems with your order.
The following items can't be returned or exchanged
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
  • Custom or personalised orders
Conditions of return
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.


If looking for a custom order, please send me the details and I will let you know if I can do it.
As this is a Beta product or a Custom Build, Please contact me if you need any assistance.

I update the software for digital products (such as my cold brew coffee maker) as needed regularly, so please check my Github at: https://github.com/Phoenix260/

3D models & manuals for most items can be found on my website: DropBOB.ca under product manuals.

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