Build thread for my 3 dof simulator platform

I installed the anti-twist and did a "test ride". I'm not too confident about the motors. They get the whole thing moving, but do not track as well the set point as with out load (the motor 3 again is the best of the bunch).
The anti-twist makes it even harder for the motors, but is necessary to eliminate wobbling. I didn't do much testing as I run out of time and I feared that I would burn some MMs ( as at least one of them has one of the chips badly installed, one chip is 0,5mm higher than other, so my cooling is not necessarily effective on the lower chip).

The whole system is light enough to push around with wheels, but heavy enough not to move while "riding".

Some new photos:


Front motor and some anti-twists

Bottom, wheels and such


Back motors and anti-twist


The rig at this point



There is still a lot to tweaking and some parts to do (e.g. removable HOTAS stands and motor on/off-switches).
And of course if I ever get this thing performing the way I like, I need to decorate it.

First real LFS testing:


The motor levers are not centered and I haven't done much tuning. Also the anti-twist is working but not as well as I wanted, it's a bit wobbly.
The motors are not as smooth as I would have wanted but I haven't touched the tuning parameters of SimTools nor PIDs.
Still the motor 3 (back right hand side) does the best job...

Best part is that motors were not hot nor the MMs burned

Some modifications:
I installed gas struts and removed the springs from the back.
Now the motors wont work unless there is some weight on the sim, but they require less power while loaded.

While I was experimenting I accidentally clicked full current for one motor in SMC util and that instant one MM burned...
I know, I should use fuses (I have bought them but didn't install).
Well, I have more soldering to do
I'm getting Vive tomorrow so I believe that fixing the rig will have to wait for a while

It has been a while since my last update on this project.

Well it happened to be so that the gas struts were too heavy (350N), I changed them to 200N struts and a 60N in the front. Now the motors are quite ok (would be better if I could drive the MMs higher than 180 with out thermal shutdowns), I believe that the best for my weight would be 250N struts in the back.
One gear box of one motor was a bit loose, so I tightened it and it seems that that motor is needing more power to work than the other ones. I havent figured out why.
One MM is getting too hot for some reason, it seems that there is some height difference between some components, so that the cooling block is not hitting it well enough.

Well at least it is some what working

Here is a video of a test run with pCars. Unfortunately the camera was aligned too high but you get the idea.
I haven't done anything for the settings in SimTools. The motion of the rig itself is no where near what I would call smooth, but it's better than nothing.

Hi E1m0
What would be the minimum height of a room needed to host your rig? I am trying to find out if my little playroom has enough height clearance for a sim similar to yours? My room height is only a little more than 7 feet.
Thanks
Stargazer

noorbeast, thanks!
This is perhaps the best answer I got ever. I had been afraid that the only spare room in my home is not big enough for these toys. And I am not sure if the wife will move to accomodate anything like this .

Thank you again.