Development update (June)
Hope you are enjoying the lovely start of the summer! Few weeks have passed and we are happy to share our next development update! MIITO team has been working closely with our partners and we are excited to see how the development in a production-minded environment has picked up speed. We have selected great partners and day by day we move together towards manufacturing.
In the time since our last update, the development efforts have focused primarily on identifying, testing, and modifying the components and coil that provide the best possible power supply system for MIITO. As we have mentioned before: this is perhaps the most important development effort required for us to realize a product that delivers the best possible experience to MIITO users.
- We are now testing the impact of different wire and ferrite materials on the performance [power transfer] in what will likely be our production coil structure. The objective is to increase the power transfer- thereby reducing the boil time. The current industry standard is 21 strand wire which so far we have found will not work for MIITO- the coil in our case is quite small but still requires high inductance. Our development team is testing the impact of wire and ferrite materials to find the best solution for MIITO.
- Current results: the newly designed system powered up 600 watts (stable). Our current limitation for reaching higher power: ferrite material. We have ordered new material and more tests will be conducted in the coming week. More results to come in the next updates.
- We have been very impressed with our manufacturing partners' willingness to work together with us to find the best possible system components that make sense for our product performance and manufacturability requirements.
- We are also testing the impact of different power electronic topologies (example IGBT and MOSFET) to find the best solution for the MIITO system. This has so far required many tests allowing us to eliminate few of the scenarios. We continue narrowing down the options and working towards the final selection.
- MIITO team visited packaging manufacturers to begin understanding costs and lead time to design & produce product packaging.
- A major focus of our team right now is identifying all possible parallel paths in the development to reduce the time to production and product shipment. Packaging is just one example of an activity that can be managed parallel to efforts required for coil optimization, etc.
- We have selected our final assembly partner. As would be the case no matter where in the world we selected manufacturing partners, we have chosen a company with strict ethical and information safety standards, and an excellent reputation based on years of experience. We are really excited to see our supply chain coming together.
We have started to work on solutions for the listed problems and will continue updating about the progress in further updates. Issues that have surfaced in our development efforts:
- Temperature measurement: our intended temperature measurement system (temperature sensors placed through out the rod, bluetooth module inside the tip of the rod communicates to the base station of MIITO) significantly increases the time and costs required for development, and creates a major challenge when it comes to product certification and regulatory processes. These challenges were in our minds from the start, but now advised by our developers, we are considering alternative methods for temperature measuring to achieve the same functions but reduce the complexity in development.
- Rod assembly movement: during power transfer testing we have observed that the rod starts moving around the vessel (the cup) as the energy transfer increases. This happens in part because the air bubbles generated in the heating process need a way to escape from under the disk, and in part because a rotational axis is created in using induction technology for our product. As one parallel path in development, we will experiment with the shape of the disk (bottom part of the rod) to see if altering the shape would reduce the rod assembly movement. It is important to prevent the disk from moving, as the system reduces its efficiency if the disk is not placed directly above the coil (in the center of MIITO base).
We still have a long way ahead of us (end of July we expect to have more details on the estimated delivery time) but it feels good to see a talented engineering team busy with MIITO development on a daily bases. We will continue with this speed and in few weeks will update you about the next steps, latest tests of power efficiency and plans how to address next development issues. There will always be new issues that come up along the way and everyone who have ever developed a product knows about it very well. We are calm and confident that continuing in the new set up of our team- we can successfully solve new challenges.
- Your friends at MIITO -