We came back to our place, where we put our Amethyst first time in to the sea water. Compare to weather in Prague (Czech), Pula (Croatia) has much enjoyable temperature to live in. Task was to get data on propeller RPM's versus speed. This is needed for internal navigation process. We are using GPS module to get speed with all telemetry recorded to log. This will give us basic output: how fast craft going when X RPM's are applied to the propeller.
This was basic test of TAXI control software and vertical thrusters working together. Goal is : RPMs of motors balanced to each other - let´s say calibrated. AUV should dive steady in horizontal position and onboard computer should know proper RPMs of diving and then maintaining depth.
I am happy to write that 3D parts for inside electronic mounting are ready and available for download. As usual, documentation is bit pain because lack of time, but anyway, I am steady moving forward. Field testing season of Amethyst started again despite limitations of quarantine. Basic electronic setup with software is really close to initial release. This time it will finally happen. ;)
Project was mentioned in article about DIY robots that you can build at home. Thanks Make:!
29.12.2019 | Another major change in design targeting better buoyancy compensating and give more room for electronics.
13. 11. 2019 | We got major update of almost all parts in the Amethyst AUV concept. Overall weight were reduced significantly and insufficient rudder issue is fixed.
Amethyst Taxi - mini remote control of the craft is done. Mega Pro Mini in testing for Amethyst AUV. Small while same powerful as base Arduino Mega board could replace or modify previous concept of three separate Arduino Pro Mini controllers in Amethyst AUV.
After almost year of constant learning, development, mistakes, corrections, testing and great enjoyment from creating, finally, files of first ever 3D printed open source AUV frame are here to be available to everyone who want to step up into field of marine engeneering, robotics and underwater exploration.
My appearance on stage of Trieste Mini Maker Faire was important experince for me. I never spoke for so many people and hope that it went well :) We met fantastic teams of Minion ROV and Teleswim and saw so cool projects, met nice people from VESTIVA / EMOTIONWEAR, Open Thermal Camera and many many more. This MINI was MAXI!
The next step for our AUV is reliable radio communication with base on shore. We all know that radio waves penetrating water with difficulty, but we need that feature even just for control the AUV on surface for taxiing and getting back basic telemetry data every time the AUV surface and do correction to its internal navigation system.
We met so manny interesting people and we would like thank to all who came along, talk to us, gave support, share their ideas or just observe our creation. Here is just some small pick of pictures from that day
Some pictures from first day of our attendance on the fantastic event of Maker Faire Vienna 2019
We put the Amethyst in to the seawater first time ever at Pula bay, Croatia. Nice April day, cold wind, freezing water and two explorers trying to not get sick.))
All craft´s mechanical parts and electronic which control them should be extensive tested and we are doing that right now. We need to be sure that everything will work fine when any maker spend time, resource and effort to make one creation.
We are exited to announce our appearance at biggest DIY festival of makers and creativity this May at Vienna. It will be dive to friendly waters for us and you guys can check and touch live Amethyst in those not fare days.
MAKE YOUR OWN AUV
AMETHYST AUV STL FILES DOWNLOAD