The one with the end of Bornholm

Hello to our favorite Lhama!

The Lhamas began their last day at their business trip to Bornholm with a scrum meeting going over the sprints work and achievements while looking at the backlog to determine this days goals for completing the second sprint.

// refinement/retro //

First, we tested the electronics together with NodeRED for the first time - and it worked lhamazingly well. Now what's left is assembling and soldering all the electronics together and polishing NodeRED both back -and front end.

More work was done on the design of the final prototype. The main challenge was getting all the components and connections confined within a structure without it feeling bulky or excessive. Last week we did some quick sketch iterations on design and features, which you can read about here, which we used as inspiration for further design considerations. We decided to try and put as many components within the base as possible to keep the top of the structure light - both in weight and aesthetic. We therefore explored having the airlock outside of the lid, as this was by far the most bulky component within the space and doing so would make it possible to shorten the height of the lid considerably. Left in the lid is therefore just the motor and temperature sensor, requiring just five wires for these and then a hose to lead the air down into the airlock, which would then be placed within a back column going from the lid to the base. Moreover we discussed placing one of the hoses from the filter within the lid as to spread out the placement between the two hoses and create more of a flow. Within the base would be the electronics box, the pump, and the filter, where the last one would be accessible through a drawer placed on the side.

The base also needed further exploration. We began this by figuring out how the filter should be attached in the base. Because we wanted the filter to be placed in a drawer, we needed to work out how the two hoses should be able to move with the filter when the drawer is pulled out. Here the challenge was getting the hoses to move well and far enough, without bending too much or taking up too much space.

Getting ready for the final sprint next week back at Skylab, we completed all of the sketches for the 3D printed parts as well as the laser cut parts. Now we just need to have them produced and assembled and hopefully without too many iterations needed for everything to work out.

Lhamasté