Hey Everyone,
We’re here with the December 15th update and more news on the progress of the Grasshopper. We’ve been very busy implementing and testing the new parts that have arrived. Since the last update, we’ve received another batch of production PCBs, assembled the control stacks, and we now have a number of Back Ends fully completed and operational.
The arrival of these particular PCBs was a big step forward for us. After months work sourcing components and refining both the circuit and the software, we were ready to have the PCBs machine-assembled. After shipping the components to the fab, we waited for the boards to come in. Two panels of PCBs arrived last Friday, and we began testing right away.
Having tested the circuit extensively on larger hand-assembled PCBs, we were confident that the smaller machine-assembled versions would work. However, the initial results were not good. It quickly became apparent that the fab had made some critical mistakes when placing the components, causing the boards to function incorrectly. After troubleshooting late into the night on Saturday, we were able to remove and replace the incorrectly-oriented components by hand under a microscope. We loaded the software and powered up the boards. The LEDs came on and the heater reached temperature. After extensive testing for the rest of the weekend, we are very pleased to report that everything is working perfectly!
We’ve contacted the fab regarding their mistakes, and they are fast-tracking new PCBs for us. Our sourcing agent is making a visit to ensure that things are done correctly, and we expect to have a new batch in-hand by early next week.
The machined contacts mentioned during last update combine with the PCBs to form the Control Stacks of the Grasshopper. These tiny modular assemblies allow for communication between the front and rear of the device without the use of wires. This is one of the key aspects that make the Grasshopper so durable and reliable.
Installing the rear Control Stack into the Back End allowed us to create mechanically and electrically functioning assemblies. Check out the short video of the very crisp mechanical button operation.
That’s it for this update. The Bodies, Front Ends, and the remainder of the production parts will be arriving in a single shipment very shortly!
The Grasshopper Team