We have published the first version of the gerber files of the notebook motherboard PCB on our GitLab repository!
The engineers in charge of the design used the software Mentor Xpedition to carry out the design, and in a couple of weeks we will publish their original sources of the PCB from which the gerber files were exported. The cause of the delay in the publication of the sources is because the PCB simulations still are being performed, and until then the sources -and consequently the gerber files- might change. The simulation of the PCB that was successfully financed with the previous donation campaign is currently being finalized. As nobody in our association has the required tools, ACube Systems is taking care of supervising the entire review process for us.
We are perfectly aware that providing source files created with proprietary software is not ideal, therefore we are investigating how we could provide the PCB sources for the Open Source KiCad software. A first attempt we are testing is to load the Mentor Xpedition sources using the PCB Design Software Altium, and from there, convert the source to Kicad. We are looking for volunteers that could help us in the source translation process.
While interacting with ACube on the simulation process, we were faced with the fact that the verbal agreement we made on the prototyping costs dated back to mid-2017 and the world went through great changes. Back then, they estimated a total cost of €10.500, consisting of a first € 3000 for the initial equipment, and € 1500 for each prototype motherboard, multiplied by 5 motherboards. However, after detailing and updating all involved costs using today’s market quotations, it appears clear that most of the components costs have increased since then, maybe because of the pandemic, who knows. Take for example the NXP T2080 CPU, since 2017 its price has simply dubled, and most of the other components have increased their price too. We discussed extensively with ACube Systems, the initial equipment is still € 3000, but the final cost of each prototype motherboard has increased to € 3000, doubling the initially estimated price of 4 years ago.
Because of this dramatic increase in the production cost we decided to make 3 working prototypes only, that makes € 9000. On top of these we add another € 500 to make a dummy board (not working board), printed with a two layers PCB and all mechanical components correctly mounted. The scope of such a dummy board is to ensure that the working prototypes that will be produced later will mechanically fit in the Slimbook Eclipse. As a result, the ongoing campaign goal will be increased to € 12.500.
We are currently investigating the impact of the increased production costs to the final product, but we do not have an answer so far. We will keep you informed as soon as we have a reliable estimation.