Here we go again . . . MK4

[routercnc]

I'm eagerly waiting for your actual ali cutting video and hopefully some stiffness measurements.

I have a questions as I'm starting a new build trying to use some of your design solutions.

Have you researched or tested how the double beam gantry with the rails on top (80-100 mm more leverage) performs in the Y direction compared with the twisting of the popular single beam gantry?
You have mentioned at some point that mori seiki used this gantry design but I couldn't find any information. Could you point me where to find anything about it?

Here is the pdf link for the Moro Seki 5000
https://uk.dmgmori.com/resource/blob...0-pdf-data.pdf

This shows the box in box idea which was part of my inspiration.

I was worried about rails on top as they are further away but when they were underneath they were difficult to level plus would get chips and coolant on them or risk being hit.
On the sides made the gantry even wider which I didn’t like. When I saw the Mori rails on top and the beefy construction I went with that.

I have not measured the stiffness yet still other jobs to finish (build coolant system, skim bed, tram head, belt guards. . .) and other commitments are limiting workshop time but we will get there and get a video out when it’s done 😀