Increasing travel of a moving axis?

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Cretster:
Actually, I've had another idea which might simplify the whole thing. I'll need to get some sort of idea for seating measurements of a sit down cab (distance between seat & wheel/pedals/screen etc etc), but I just checked on my current cab I have 3 feet height below the bottom of the control panel. Which basically could be 3 feet of pivoting seat section that just folds down by hand, with no need for complex arrangements or motorisation (on this part at least). I think the seat being 3 feet back from the cab should be enough, so if so it makes it an easy option. Of course you'd be able to adjust it too.

Ideally it'd be assisted I suppose, so I'd use something like tailgate gas struts to take weight off lifting & lowering it - would avoid it being dropped by accident, and that'd also be fairly easy to do.

So again, another crappy hastily drawn diagram to show what I mean, but something a bit like this (this doesn't include anything about the monitor raising/lowering or control panel moving etc):

Cretster:
Thanks Scott - do you mean for the monitor lifting/lowering? Hadn't thought of that I must admit but I've more or less got the exact bits I need to do it electrically already thanks.

Cretster:
This is the ram thing I've got which will make very light work of lifting the monitor up & down:

I've got a set of 4 of these linear bearing blocks too for fitting 16mm tube/rod, which will make the monitor section move real nice and smoothly with one on each corner:

PL1:

--- Quote from: Cretster on December 27, 2014, 02:16:09 pm ---This is the ram thing I've got which will make very light work of lifting the monitor up & down:

--- End quote ---
That "ram thing" is also called a linear actuator.

It's the red/green item in the diagram. ;D

Those bearing blocks should work fine.

Scott

Cretster:
Ahh I see now sorry, duh!!! Yes that could be handy to speed it up, and the drop in effective force is academic since it's good for 160kg!!

Interesting thought.
I was just going to have it directly beneath, pushing straight up & down, with the linear bearings on each corner ensuring it all moves nicely.

One thing I haven't given a huge amount of thought to just yet is the moving of the control panel. It will lower as part of the monitor 'module', but will need to extend out. I think my pal said he has a couple of those actuators that move 8" that I can have, so depending where the wheel folds out to it might be enough to bring controls out near enough to the seat.

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