Purchasing new parts for new build.

[samsagaz]

so 20mm is more than enough, great! can purchase long ones then to use more of my ballscrew.

Btw, when is needed 25, 35, 45mm ones? exist some kind of relation table?

[Clive S]

so 20mm is more than enough, great! can purchase long ones then to use more of my ballscrew.

Btw, when is needed 25, 35, 45mm ones? exist some kind of relation table?

Not sure what you mean with the above but in order to get some good advise you need to put some sort of drawing up and it also will be good practise for later when you what to start making things etc

[routercnc]

25mm + rails would be for industrial machining centres where they are chasing max stiffness high throughput and long hours. But the cost goes up with the bigger sizes and the money would be better spent on the other parts to keep it all in balance.

[samsagaz]

i already start the draws! i really liked designs like Silyavski design https://www.youtube.com/watch?v=C9hTLN1CydU (low profile and moving grantry) or fixed gantry like https://www.youtube.com/watch?v=K9UA9ZRFwWU

These are very good machines i think, and maybe impossible to make for myself but will try to draw something :D

I will use welded construction materials like IPN and UPN ones.

will try to draw two designs to see wich recommend me

[Clive S]

or fixed gantry like https://www.youtube.com/watch?v=K9UA9ZRFwWU

That and the series (3 vids) are probably the best I have seen in a long while. Thanks

[samsagaz]

yeah, incredible right? and very well recorded too!

[Norgmonster]

Hi,

I'm new to the forum and in the planing stages of my own cnc router. I'm planing to start with a 2' x 4' cutting bed and use materials that will allow me to upgrade it to a 4' x 8' when i have the space. To do this i'll use 3" x 6" aluminum profile, rack and pinion rail attached to the stepper motors with a drive belt (except for the z axis) and other materials that can be extended or deconstructed. The design is based in part on "Joe's design" (seen being made hear)

https://www.youtube.com/watch?v=5ThZws-858M

It being an American video and being based in the UK I have found most of the equivalent parts except for the X and Y motor mounts that link to the rack and pinion rail.

All in all i think i have the design sorted out "in my head" and will start to drew it up in CAD asap.

First of all i would like to ask if anyone has come across this design and what they think of it?

And second, what is the best hardware to buy for something that will be enlarged in the future (NEMA 34 N.m. 11.2 stepper motor, stepper motor Drivers and so on).