CNC Router V1.0 (For Cutting Multiple Materials)

[routercnc]

Hi Dave,

On the basis that it is broadly similar to my machine, but with slightly better components and smaller footprint (and assuming that the sides are 15-20mm aluminium plate?), I would expect this to perform very well for MDF and plastics. Aluminium would be best cut in the middle of the bed since you only have a central ballscrew (like my machine). Even so this would not suit regular aluminium cutting.

Adding a plate across the back of the gantry, between the 2 cross members, would be a useful addition.

I know it is only A3 size, but if you ever think you would upgrade to twin ballscrew in the future then you could increase the width of the end plates and add ballscrew mounting holes so it is ready to go. You would also need more holes in the gantry sides to mount the ballscrew.

[biketrialsdave]

Thanks for the feedback. Twin Y axis (I assume you mean Y?) ballscrews was on my list, I will probably add the mounting holes in so I can add them in the future. All plate will be 20mm thick I think.

Been doing some more work...



At the moment I only have 2x Hiwin carriages on the X axis. Would there be much benefit/need to double up on these? I.e. two carriages per rail? If so then I will need to increase the X axis length to get a decent travel. I am leading towards this anyway...

Dave

[Jonathan]

Would there be much benefit/need to double up on these? I.e. two carriages per rail?

Definately. The rigidity will be greatly reduced if you don't use two, since with only one on each rail the axis can more easily pivot (or 'rack') about the center point, i.e. the ballnut, which on the gantry will cause the cutter to deflect substantially.

[biketrialsdave]

Will add some more carriages in tomorrow :) thanks!