@John_Sturgess here is the link to the 3D hub I used, my prints have now been posted so I will upload a photo once they are here.
@Andy_Shilling Cheers, I’ll check it out
I found this and want to incorporate the bearings into my z table. I “need” a definitive x,y 0 as i engrave a wide range of depths and having a set 0,0 will make life a lot easier!
https://plus.google.com/111438403155069984294/posts/eNCk9QGn3qD
If you could print a 5th chain pulley I don’t see why it couldn’t be mounted to a stepper and used to drive the chain/table.
@Andy_Shilling That is a good idea, however after some use I have decided I will end up going a different route. It does work really really well, however with the threaded rod poking up all the time, it cuts into usable room, easy to work around with smaller objects adjusting the offsets of the work, however I will need to eventually use the entire area inside, and will soon be looking into using the lab jack I think. I will kep it around though lol.
I’ve taken my lab jack out now because it only gives you about an inch of depth and I want to etch glass vases. Once I get my prints I will be able to set up your bed and work it out from there.
Definitely look forward to seeing if you improve it. 
I was thinking about having the bolt come in through the bottom of the machine and have everything under it. But it would require me to cut a hole in the desk it is on hahaha… But it would allow for completely accessible bed area as the bolts would then be able to push up the plate as they go in and out.
I like that blue, I have that filament 
used it for my cable chain look forward to seeing your outcome and if you can improve.
@Andy_Shilling for your version with the lift, how did you modify the lift to work in that position? I am trying to figure it out in the clip but without one infront of my I cant xD
Their is a photo of it above the video that may help but I replaced the thread with a new piece because the original has a left and right thread on it. I’ve taken mine out again now so I will take another photo for you in a while.
As you can see I removed the thread section and that is it. Once it was bolted to the base all that was needed was a new threaded section to push against the bottom bar. Hope that helps.
Hey @Andy_Shilling how tall would you say that is completely flattened?
Also, does it sway at all while extended?
I’ll pop out to the shed and check but yes it does sway a little. I’ve just stopped using it because of the movement.
@Kelly_S your looking at 2.25 inch when completely collapsed.
Ah, so a little movement then, that’s no good. Thanks for the quick reply! Are you thinking of other alternatives? Will be modding mine with a larger gantry sometime soon and still have to think about the Z lol.
@Kelly_S The 8X8 one I have is pretty solid. I have yet to modify it. Will update when I do.
@Kelly_S I’ll be going over to the chain lift very soon, I just wasn’t happy with the lab jack idea. My biggest problem was I have started etching drinking glasses and using that jack means I can’t drop it low enough to get the required focal length.
@Andy_Shilling how much of that 2 inches do you think you’re going to gain?