3 Axis CNC router

[JoeHarris]

I really do! But it has taken nearly 18months to get this far so......

[D-man]

Oh I see, Oh well guess i will have to dig deep and find some patients ha *Subscribed!

[JoeHarris]

Some stills from my updated model...

[routercnc]

Hi Joe,

Coming together nicely now. Is there any reason on the gantry for putting the X axis bearings out the back and the spindle hanging out the front? Normally you would put a bearing near the spindle axis to give more support. Do you need to cut right over the edge of the machine?

Not saying it won't work as drawn because it will, just that it could be a little better if there was no reason for the bearings positioning as drawn.

[voyager1972]

Looks a very nice setup..
I am interested in a similar style'll of machine capable after taking an 8*4 sheet material....would be gratefully for some advice on material suppliers ,like aluminium extrusion and bearing guides ect.

[JoeHarris]

Looks a very nice setup..
I am interested in a similar style'll of machine capable after taking an 8*4 sheet material....would be gratefully for some advice on material suppliers ,like aluminium extrusion and bearing guides ect.

Apologies for the late reply - bearings and rails BST Automation in China. ( Aliexpress) aluminium extrusion Motodis (Germany) ball screws Chai (eBay) steel from a local merchant...

[voyager1972]

been looking at nema 34 stepper motors online,,,,,would they be suitable ?,,,,,i plan to be machining sheet material like mdf,,,melamine,,,oak and ash ect.. also i see the motors are avalable with differant holding torque......would the higher values be advisable.

[Clive S]

been looking at nema 34 stepper motors online,,,,,would they be suitable ?,,,,,i plan to be machining sheet material like mdf,,,melamine,,,oak and ash ect.. also i see the motors are avalable with differant holding torque......would the higher values be advisable.

It is impossible to say what size of motors you require without giving details re your machine. It might be a good idea to start your own build log to keep all the questions in one place.

[JAZZCNC]

It is impossible to say what size of motors you require without giving details re your machine. It might be a good idea to start your own build log to keep all the questions in one place.

Clives 100% correct but it's also 95% chance they won't be suitable for few reasons. First reason high chance they will be high inductance motors which mean you'll need expensive high voltage drives.
Second reason is they'll be all wrong for your machine unless large or heavy load to move.

Jo be careful you have enough epoxy because it's proper ball ache if you run short. However I know 1ltr should be enough for machine your size so shouldn't have any trouble.
Really make sure you seal it well because it's amazing how epoxy finds leaks and they don't always appear instantly so keep checking and be ready to make repairs. Putty is handy stuff to seal quickly.

[trigus]

Hello,

I'm very exiting your cnc design. Maybe you have video how cnc works? maybe can get drawings from you?