Ballscrew & Linear Rail Kit - Any Good

[WoodKnot]

So far so good. What's funny is that the kit included four carriages. I have no idea how they are thinking... 200mm rails and four of those means basically no movement at all or maximum 46mm. I knew this when I ordered, I only need one on each rail, but this was the best price, so now I have two spares. BTW, even this BK feels fine to me, and I still think it is best to leave it as it is and replace the bearings with AC once these are worn out, if they ever will before I die or stop using it.

They suggest 250mm but went for the stock 300mm, I suppose better to have greater travel then less?

[A_Camera]

They suggest 250mm but went for the stock 300mm, I suppose better to have greater travel then less?

This is a kit with 250mm ballscrew and 200mm rails. I need about 80mm motion that's why I chose this kit.

[WoodKnot]

This is a kit with 250mm ballscrew and 200mm rails. I need about 80mm motion that's why I chose this kit.

I presume A Camera that you can just set the limit switches on the Z axis to reduce the amount of required travel anyway

[A_Camera]

I presume A Camera that you can just set the limit switches on the Z axis to reduce the amount of required travel anyway

This is for my micro lathe experimental project and will be used as X axis. It's an experiment only, but movement is short since the chuck is only 100mm, so I figure 80mm is enough. I will never need to make anything with 160mm diameter anyway. Initially it won't have any steppers on the axes, so no need for limit switch. My CNC Z has limit switches but only the upper one is ever triggered. That is different, there I have 160mm Z clearance and 140mm movement, so it is much larger and wider than this is going to be.