{"id":11759,"date":"2025-10-20T22:48:34","date_gmt":"2025-10-20T21:48:34","guid":{"rendered":"https:\/\/dronesonen.usn.no\/?p=11759"},"modified":"2025-10-20T22:48:34","modified_gmt":"2025-10-20T21:48:34","slug":"hydrawlics-week-9","status":"publish","type":"post","link":"https:\/\/dronesonen.usn.no\/?p=11759","title":{"rendered":"Hydrawlics – Week 9:"},"content":{"rendered":"\n
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Hello and welcome back!\ud83d\udc4b

We\u2019ve officially started Sprint 4, and the project is really taking shape. This week, much of the focus has been on development and testing across different parts of the system – both in hardware and software. This is what our team members have been working on.

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Fredrik:<\/h2>\n\n\n\n

This week we started sprint four, which means we should be nearing a working product. Now that the arm structure is in place, we need to get the hydraulic system fully working and implement it.<\/p>\n\n\n\n

My first priority was getting the valve attachment ready, as this was necessary to be able to test the valves. This was both to make sure that it works, and to enable the software engineers to develop and test their valve control system. I started on this last week, with printing a threaded piece that matched the threads of the valve. Still, I needed to print with a hose barb on top to be able to attach our tube. From the test of the hydraulic cylinder, I knew I wanted the diameter of the hose barb to be larger, since it seemed to be leaking in the test. Since the previous hose barb easily snapped when printed right side up, I printed it laying on its side for optimal print orientation. I was worried that printing the valve attachment on its side would mess up the threads, so I decided to print it right side up. To my surprise, the increase in diameter of the hose barb led to it being much stronger, and I actually had difficulties snapping it.<\/p>\n\n\n\n

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With the valve attachment done, we were ready to test the valve. The video of this is shown below. The valve was successful in directing the water, meaning that the system was working. This is really great news! Granted, this test was isolated to the valve, and did not include any cylinder or manifold, but the component test was a success. There was as expected a lot of leakage from the valve attachments during the test. This is important to fix, as the problem would grow exponentially when connecting three more valves, and the remaining cylinders and manifolds.<\/p>\n\n\n\n