Hello all! Progress continues to be made on small design updates, testing, ordering, and business growth.

Hardware

The new larger fill tube has been installed on a second prototype unit along with the new fittings. This simple switch has improved my initial dissatisfaction of slow brew chamber fill at low boiler pressure. This switch will also improve manufacturability and assembly time.

The stepped temperature knob has been swapped in on the machine and I’m pleased with the feel and functionality.

Cover design and pressure transducer/ gauge adapters continue to be iterated. Designs will be locked in and samples ordered this week for testing and display.

I have explored electrophoretic coating as an alternative to powder coating. I’m continuing to search for an appropriate supplier to have samples colored.

A chamfer has been added to the upper inner edge of the group head. This acts as a funnel to compressing the o-rings while installing the piston assembly thus making installation simpler.

Design has been updated for bushings to keep linkages centered, reduce wear, and incorporate barrel bolts (Chicago screws) to eliminate the need for retaining clips.

Software

The Acaia Lunar has been tested with the app in actual use and works beautifully. Very smooth plotting and the ability to change units, tare, ect are all in the app.

We continue to iterate and improve PID control logic through real world testing.

The larger fill tube shows improvement with intra-shot temperature testing with the Scace 2. More data will be posted as testing continues and controls are refined.

Tasks for this week

Place orders for sample transducer/ gauge adapters

Get parts out to a powder coating supplier

Place orders for tampers, milk pitcher, machine lights, and other small components

Develop hiring plan for assembly workers

Continue working on patent application with agent

Updated photos to come!!!

Thanks,

Ross Ainsworth