neibi / bdb-slayer

Repo on info for mods and upgrades to the Breville Dual Boiler espresso machine, focusing on the re-purposing of the hot water needle valve to enable flow profiling.

BDB-Slayer

NOTE

IF YOU ARE GOING TO PRINT THE STUFF FOR THE JAKE VALVE, SEE NOTE AT BOTTOM OF THIS PAGE

I'm trying out some doc hosting stuff on this repo for fun and to make it look a bit nicer. The readthedocs page is here: https://qporzk.github.io/BDB-Slayer/

This repo is meant to be a knowledge base for mods to the Breville Dual Boiler espresso machine. This focuses on (but is not limited to) the rerouting of tubes to the hot water needle valve to enable flow profiling. Background here: https://www.home-barista.com/espresso-machines/breville-dual-boiler-slayer-shots-t54849.html

Sections

Slayer Mod

• This is a pictorial guide to doing this mod

Pulling with the Slayer Mod

• This focuses on actually pulling shots once the mod is completed. This includes how the pulls work, what the best profiles are, and theory on profiles.

Upgrades

• This focuses on other upgrades that can be made, including replacing the needle valve, replacing the pump, plumbing in, and others.

Maintenance

• This covers maintenance, both preventative and reactive, as well as general routine maintenace and cleanup that should be performed

Models

NOTE: These models are out of date, as they were made for my BDB which was slightly broken. The portion of the body where the hot water knob attaches has a flange that I was unaware of as it was broken off on my machine. I've added an updated .f3d file called "BDB Marker Knob Stock" which may work for new machines, but may need the recess in the knob and cutting of fins on the Drive to be increased in size/depth, as I've only estimated the size of the flange from pictures. If you edit this to fit well on a stock machine, let me know and I can update the model.

This will summarize the 3D models included in the repo, as far as what they are, what they replace, and best practices for acquiring them.