Question After 15 years lurking going to build a simple 2DOF

Hi All,
Was a member here several years ago but was not in a position to build a mover. Now I'm old, so I only need a simple 2DOF chair to fly helicopters around in MSFS.
there has been several commercial offerings available since I first saw Thanos' project here back in 2009, But man $$$.
I was (and may still be) going to build a Bergison G-seat but have decided on the 2DOF to keep the cost as close to zero as possible.
About 5 years ago I scored a free NLR GT-F frame and seat. I've long since sold the seat and mounted a HD truck seat to the frame. I've also collected several wheelchair motors from the land fill over the years. I had hoped to find 6 of the same motor (for a Stewart Platform) but have 2 of 2 type and 4 of another. I also have 2 good Wheel chair batteries and a 24 volt charger.
A couple of weeks ago, while flying in MSFS, I got the overwhelming urge to just build something to add immersion. So I spent about 10 hours in F360 and drew up a design using my current seat and frame. Then I grabbed some tools and the parts I'd collected over the years, and started cutting my rig up and reassembling it into a motion platform. The mechanics are mostly complete. Just have to cut out the actuator arms and drill a couple more holes. The only electronics I have to buy is the motor driver.
Anyhow, just thought I'd share. I'm sure I'll be back when it comes time to (try?) putting it in motion.
Here's a couple pics.

Oops, just realized I tagged this a s a question. The questions will definitely be coming though.

As you can see, the rear of the motors have a hex head where the brake was mounted. I was thinking of putting a 10-turn pot there instead of figuring a way to hook it to the actuator arm or output shaft. The gearbox is 30:1 so 1/4 of output shaft rotation is only 7.5 turns. Am I missing something or is there a reason not to mount it there?
Is the Sabertooth 2x32 and an Arduino Uno still the easiest and most cost effective way to control it?
I'm using a WMR headset still, and will be till MS absolutely makes me upgrade to 24H2. I read that motion compensation for WMR is now a thing. Where should I go to read up on that? Are the Sabertooth and Arduino the best option for this? Is there WMR motion control baked into SimTools? or do I need to use OpenXR?

Hi Noorbeast,
Thank you for this input. The plate that the motors are mounted is removable and also adjustable along the length of the rear leg about 6". So there is a lot of placement location. If there is any speed, power, or heat issues then I wall do as you suggested. I have enough of the original rig to add a couple of wheelbarrow handles to the back.
The reason I gave up on a motion rig 5 years ago was because of the lack of motion compensation. I don't race anymore. Too much virtual road rage. So now I just tool around in GA aircraft and helicopters. Slow, large motions. I was watching Mark from Simhanger demo his H3 sans compensation. It didn't look comfortable. His second video with OpenXR-MC looked much more enjoyable. I'm still not sure of the best software collection to go with. Have to do some more reading.
Thanks again,
John

I have a Quest and motion compensation is a simple matter of installing the software and mounting one of the controllers to the rig. I would never go back to not having it. I can’t speak for how well this would work for a WMR setup but a Quest is not that expensive and probably significantly better imaging and comfort.

As I understand all the motors you have have 24V supply voltage ?
Can you give their power consumption in amperes?
In my 2DOF I use 24V 13,4 A motors and I could build such dimensioned 2DOF( I attach the drawing from simcalc program)
And this is how to fly on it

The cheapest option, tested by me, is to use the controller from this thread
https://www.xsimulator.net/community/threads/reasonably-priced-100a-motor-controllers.17638/
IBT2 bridges at 24V often break down (I burned 8 of them)
+ arduino uno
To arduino you can upload this software “SMC3 Arduino 3DOF Motor Driver version 2.10 with soft start/stop and support for DOFReality H6 and P” with working soft start function (checked works : )
https://www.xsimulator.net/communit...rt-for-dofreality-h6-and-p.17630/#post-252481

To operate the platform I recommend FlyPTmover has a built-in software compensation OPENXR which I use with my Reverb G2 (in the video you can hear at some point when I turn on the compensation, unfortunately I did it too late and it did not work properly, if you turn it on before the flight it works great, in addition with the VoiceAttack you can control it by voice )
FlyPtMover use version 3.5.3 https://drive.google.com/uc?export=download&id=1zoHUu7cYJlAmBH9pE1wAPNpiMOvHDYj7

the latest version still has a few errors, I attach a file with my 2DOF configuration, it will be easier to see what the program is about.

This is a great deal of very useful information. Thanks You.
I'm not sure of the motors specs other than the gearbox is 29.25:1 ratio. They are Prime Mobility E660 wheelchair motors. They are very powerful. I'll know more when I fire them up.
I've downloaded the FlyPT and OpenXR-MC software already. I have a spare Arduino with SMC3 on it. I may drop it into the P3 this weekend to test run the software.
Also, After using the DOF Reality P3, I've definitively decided on using two of my wheelchair batteries with a 30 amp charger. The fans on the P3 are way too loud. This will also level out the power draw from this old house of mine.