Many thanks to Fateh Merrad for sharing it on Grabcad

Figuring out a simple strong system for armrests and mounting points for controllers has been put off for too long. This isn’t the final solution but the start of the search for it. It needs to be pretty simple, cheap and adjustable, so this at least fulfils those constraints for now. Yes, we know the steering wheel shelf would not be very sturdy, but one of our problems is that you need to get in and out of the chair, and with a steering wheel in the way this is a little tricky. Having a shelf that can be moved like this one (and then locked for use) would be useful.

We also need a method of mounting this platform into the sphere, which uses a similar idea and the same parts… perhaps we’ll show that later

After a few hours tweaking my original ‘zipper’ design I’m beginning to think that perhaps this shouldn’t be an optional extra after all. I can imagine plenty of reviews telling people that they need to spend ages building the sphere, which isn’t perhaps the best impression to give people right away. Adding quick release tabs to each edge at the factory means everyone could be up and running in half an hour or so. The mirrored design means only one part needs to be created and tooled, and the metal retaining pins should be fairly cheap to mass produce.

A notch in the side gives the pins something to grip so they can’t fall out.

I think I’ll do a orbit render too, my youtube channel is a little quiet

We realised early on though that even though heave wouldn’t be a major focus it would be awesome to add sooner or later. If our average customer is happy to pay X for a sphere they might be happy to pay X again to get that sphere to move up and down. Ideally the mechanism for heave would fit inside the base and be backwards compatible. It seemed like a good principle, but perhaps not the best idea.

We want to get the sphere cockpit perfected, but having to design around a future mechanism makes the task rather more complicated. We would need to actually design and build the heave add on at the same time. This falls into the realm of ‘feature creep’ which is pretty dangerous when trying to make something on a budget, spending a good chunk of your prototyping budget on a future feature isn’t the best plan.

Instead I’ve realised that there is a great opportunity for simplifying the idea behind the heave add on. We always believed that the ‘end game’ for the platform was a sphere mounted on a six degree of freedom platform which would give the most options for users so why not have that as a guiding principle instead. A simple lifting mechanism inside the base doesn’t move us towards that final goal.

We also recognise that while people react well to the sphere lots of people are still in the market for a ‘traditional’ simulator. They still want an affordable 2 or 3 degree of freedom system (pitch/roll + heave) which the sphere design doesn’t fulfil.

So, it makes sense to actually design TWO simulators. The spherical cockpit version and an affordable base with pitch, roll and heave that can also be updated to add sway, surge and yaw. We treat both designs as separate unit that work individually but can also be combined. So users could buy one, or the other, or both. They might decide to upgrade either unit. You also have the option (if you had both) to separate the modules if you had a friend over to play

As usual the philosophy is to ‘keep it cheap’ so I threw together a quick frame version.

  Clearly this is no good, what is the point of making something affordable if it’s too ugly to want?

Instead I think it would be better to have something with more elegant lines. This could be made by bending three sheets of aluminium and reinforcing them with an external frame.

The sphere is already quite large so this would add more bulk to the setup, so instead of three large parts we create smaller ones with the center missing, as demonstrated by the right hand picture below.

This means the heave add on is much smaller when used separately, perfect for your own chair or with a ‘playseat’.

If you want the whole setup you could use the same parts but add three panels to fill in the center of the platform. It’s possible these could be dispensed with since the base for the sphere would cover any gaps depending on how it’s designed.

This idea is more like a 3D sketch to get the ball rolling and creative juices flowing, it’s very early in the whole process but I think this could be the way to move forward.

Two platforms that could be used alone or combined would be a great way to give users more choice, as well as increase functionality.

Comments, as always, are welcome.

Well, adding a set of curved aluminium edges to the sphere is one cheap and easy way to do this. Extruded aluminium is only £4 a meter and the 20mm sections can be slightly curved and bolted to the existing holes on the panels. Some switches on the base can also provide a mechanical cut out if for some reason the sphere is over rotated, being triggered by these extrusions.
The sphere is also very strong but we might encounter cases where all the weight is on one side, stressing the sphere and possibly deforming it. By adding these sections we gain mechanical strength at a low cost.
We can also use similar sections inside the sphere to add strong connectors for heavy internal structures such as the chairs or foot pedals.

There are also different types, so we can even use one that only has one grooved side.

WHY?????

Anyway, I’m sure you get the idea…