ROV design notes, field stories and product news from the Poseidon Robotics team in Chandler, Arizona.
November 20, 2026
A look at how we put Midway together in the USA: the four-piece hull, the power system, and a design meant to be serviced.
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November 17, 2026
Midway fits through a 12 in opening and can fly through a pipe, so utilities can inspect intakes, tanks, and culverts without sending a diver in.
November 13, 2026
Midway gives public-safety dive teams a way to look first — for search, ice rescue, and recovery — before a diver goes in.
November 11, 2026
In August 2026 we flew Midway along a wooden shipwreck in Lake Michigan. A look at the compact inspection ROV on a field day.
January 22, 2025
How to save money by testing sooner
January 14, 2025
Where to place thrusters for maximum effect on different vehicle designs and how to select the right style.
December 16, 2024
10 tips when designing with fluids in mind: 1. Use for high speed shaft seals (i.e. thrusters). 2. Common for large electronics from 1,000m to full oc
Here are the 10 most important things to remember when designing an ROV frame: 1. Center of Mass directly below Center of Buoyancy = Positive Static S
Thrusters are to an ROV what Jet Engines are to a 747. The ROV needs the right number and specs to operate properly. Here are 10 rules ("more like gui
(or "How to mix electronics and water") Here are 10 tips for designing and testing a custom pressure vessel when an off the shelf housing is not an o
10 Tips for seeing FROM the Abyss 1. Cameras are the most important sensor on the ROV, select with care. 2. Bandwidth may limit the available options
10 tips for lights, manipulators (arms), and other actuators: 1. Lights will be required much of the time, so always include them. 2. Light the area a
10 tips to get the message, even in the deep WiFi isn't water proof, and with the exception of extremely low frequency and high power, radio communic
10 tips to prevent electrocution when powering ROVs Electrical safety around water might seem odd, but it is both possible to put electricity in water
10 Tips to get started using unlimited bandwidth: 1. More often than not, a custom design is required, but this can be <6 weeks. 2. Make sure it's st
9 Tips to make an ROV easy to service:
10 tips to get power to the bottom of the ocean ROVs are generally power hungry, and they already need a tether for communication and control, so why
Once the contents and rough shape of a subsea housing are known, how do we select a seal to keep the water out? Here are some tips to start, followed
