final year project: 2DOF seat mover motion rig :)

No body else mentioned it which im kinda surprised about but that seat frame is very much under supported. Unless your using a Super Thick Base plate you will have some big time flex. Highly suggest you go back to the drawing board and make an actual frame of 80-20 rather than the Single Spine you have in the render.

A bit of 18mm thick plywood should fix it

3/4" ply would also Flex in that situation.

Ok, maybe Ive just had success in my builds. For all of them I build a 25mm box steel frame under the seat and screw a sheet of 16mm MDF to it , then I bolt the uni joint to it. Its never flexed or given me issues, be it full frame or seat mover.

Did you look at his render ?

Yes I did, hence a suggestion of a steel box frame like I added. Because his rendered frame would flex like a bastard.
Unless I missed something..........

Its not too clear as there is a bag of cement in the way, but my seat mover frame is 25mm x 25mm steel with 16mm MDF screwed to the top of it, and the uni joint bolts to it. Heres some other pics of frames as well.

This has never flexed on me at all. Maybe @IJOJOI can implement something like this in the design, because, as you say, his rendered design, if built, will flex like crazy

I just ran my 3D through Finite Elements, and it seems like it is moving quite a bit...
I'll all a frame to it and see how it will change it.

Thank you very much for advice @bsft, totally forgot about that!

Cough Cough, 8 posts Up.......pretty sure my name isn't Dave.

ok then Harry,

So we are very likely to get those:
http://www.lescars.de/Wagenheber-NX-5576-919.shtml

1500kg force
12V

I hope these will be powerful enough

I eliminated the seat frame all together by using a premolded poly seat from summit racing. Added padding and a leather cover. Cost back then was around $70. Bolted my universal to a piece of 3/4 plywood that bolted to the botton of the seat. Bolted a cross bar through the upper back of seat for the actuators. 7yrs later, never had a problem. http://www.summitracing.com/parts/sum-g2100

I think they will work great for a seat mover, check anyway for a 2ton version, it is almost the same in price.
Don't hesitate to ask if you need any help.

Interesting, granted hes having issues getting the PGsaw type of motors, but for a full frame, they do just fine on one of my former sims

@bsft
Hello!

We are now in the final stages of design, and will start putting all together next week.
I wanted to thank you again for your kind donation so that I was able to download Simtools and so on!
I am in the middle of writing the necessary plugin now

A forum Member linked me a your SETUP guide back then, but it's not available anymore
Do you know why or where I can find it?
This was the link: http://www.xsimulator.net/community...-set-up-simtools-jrks-and-write-profiles.112/

Best Regards
Johannes

Actually we are at the finish line
We still to design a arm for the h-shifter, but everything else is basically finished.

I didn't update the thread, because most of the stuff done lately was calculation.
We needed to know the exact price and all the parts, which basically resulted in very slow progress,
since we had do assemble all the screws and nuts.

Furthermore more than 15 hours went into giving each part the right parameters. (eg. material, strengh etc.)

There are still a few small things I need to adress like the lever and how it's connected to the rods.

Here's how mine will be attached. It might help.

Below is a pic of the shafts. The round tube piece will have the lever welded to it. The lever will basically be shaped like a flat spoon. So the round end will be welded on and the lever will come out from there and will have holes at 40mm, 60mm, and 80mm, from the center of the round part.

I have SQ10-RS rod ends, which are screwed onto an M10 threaded bar which runs through a custom made fitting which fits inside a 19mm x 25mm carbon twill weave rod. The other end is basically the same thing and the shoulder mount is just a flat 55mm steel rectangle welded to the frame with a hole in it. I decided to use the threaded bar all the way through the carbon from top to button as a sort of tensioner. It'll help to keep the fittings at each end in a perfect position to reduce flex in the rods.

So here is the promised update guys
Enjoy