Opinion about the structure of the router ...

[Jonathan]

For a CNC router it's not difficult to achieve +-0.05mm.

Your Y and Z axis designs look good.

I would increase the size of the triangular plates and add some to the other two sides. You could also use diagonal pieces of box section to reinforce the X-axis. If you can add a piece of box section across the back between the X-axis rails that will make it a lot stronger.

What thickness are the gantry side plates? I'd reccomend 15-20mm aluminium. The X-axis ballnut mounts will be much stronger if you extend them down and mount the ballnut directly to the gantry side. The ballnut mounts are particularly important since any deflection in the ballnut mount directly leads to tool deflection and inaccuracy. You could also add a triangular support between the X-axis bearing block mounts and the gantry sides to help stop that joint bending.

If you don't mind posting the solidworks model I can open it to have a better look.

What ballscrews are you intending to use? For that size I would reccomend RM1610 on X and Y and RM1605 for Z with timing belts and pulleys on all of them.

[C.AlveSilva]

For a CNC router it's not difficult to achieve +-0.05mm.

Your Y and Z axis designs look good.

I would increase the size of the triangular plates and add some to the other two sides. You could also use diagonal pieces of box section to reinforce the X-axis. If you can add a piece of box section across the back between the X-axis rails that will make it a lot stronger.

What thickness are the gantry side plates? I'd reccomend 15-20mm aluminium. The X-axis ballnut mounts will be much stronger if you extend them down and mount the ballnut directly to the gantry side. The ballnut mounts are particularly important since any deflection in the ballnut mount directly leads to tool deflection and inaccuracy. You could also add a triangular support between the X-axis bearing block mounts and the gantry sides to help stop that joint bending.

If you don't mind posting the solidworks model I can open it to have a better look.

What ballscrews are you intending to use? For that size I would reccomend RM1610 on X and Y and RM1605 for Z with timing belts and pulleys on all of them.

where can I post the solidworks files???

[Jonathan]

where can I post the solidworks files???

You should be able to attach them to a post using the advanced view. Same method you used for attaching the original pictures.

[C.AlveSilva]

You should be able to attach them to a post using the advanced view. Same method you used for attaching the original pictures.

My Zip file. It's too big "5.76 MB" ...

I sent an email with all the zip files, but in the meantime I made changes. Can I send again to your e-mail?

[C.AlveSilva]

Hi again.
I made ​​a few changes in my router project. after taking account of the costs, I came across the need to make some adjustments. My budject is smalest. But what I ask is that comment on the change in the yy axis (the botom linear guide).

My YY axis is all in alumineo, 20mm thickness, is better than steel tube? probably more expensive... but less heavy.

I also change the ball-screw diameter and pitch instead 2005 I use 1610. I could control the resolution with pulleys.

Please comment.


Thanks.

Sorry my English ...

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__________________
Sincerely

CarloSilva