Konterror's 2 DOF Seatmover Project

@cyril69850 motedis.de is where I bought my stuff

I still have not really figured out the problem with my one PSU. By now I think I got one PSU that is defective (the one that works).
After I but the push rods back in the 80mm holes, I spend more time in the JRK motor settings. I had to reduce the max duty cycles and the max accel a bit.
I am now use 550 Max duty with 250 accel and 20 ms break duration. I upped the P to 0.7 and D to 1.8. Two days ago I would have thought those settings will not move the seat properly... But they do and it is fun!

@Nick Moxley and @noorbeast I am sorry I bothered you so much and having so much patience with me. Thank you! I should have spend some more time on reading the JRK settings and playing around with them right away instead of crying around.

Now I need to get some new ball joints for the rod ends.... They restrict the left to right movement with the 80mm ctc -.-
I will post a new video of the movements on track soon as well

I see that you used mostly 40mm thick aluminium. Do you think that 30mm could be enough?
I have reject 20mm because it look really weak.
I'm planning to do a 2dof with big linear actuator around 600mm travel distance.
Amically
Cyril

@cyril69850 I cannot really tell you that 30mm will do, since I have no experience with that. What I can tell you is that I would change some parts in my design!
I would change the longest pieces, the base, to 40*80mm. With the motors in the back the profiles lift of the floor at times. I would add another cross bar, or maybe two to the wheel part. I use a direct drive wheel with a little over 20nm tourqe, and it moves. Not much, but enough that I might order something to put across.
My seat constriction is a little too much. I took out the cross bar in the back, and one of the 40*40 on the bottom.
I made some small changes to the picture in my first post. I could provide you my files for maycad, in case you are interested.

Back to the 30mm. With the changes I explained above, I could imagine 30mm would suffice. But I cannot guarantee that

A little and last update for this year. I flipped my motors and the levers, they now face backwards. I expected this to be much shorter, but it gave me only 8cm. With the levers backwards though, it seems to work better. Boards stay cooler and I am able to run a little more agressive PID settings without getting any errors.
I configured AC in lately as well. I love iRacing for the online races, but when I just want to do a quick run without much preperation and still have someone to race (AI), AC is much better
Here is a video of how things look:


For me, it looks and feels good. I know about the motors lifting the construction in the back, I will put some rubber under it and some halfed walkway plates in the middle

I hope all of you had a nice Holidays and will have a happy new year!