Hi,

I'am new to cnc and looking to build a steel gantry type machine, capable of aluminium, and wood.

Hobby use, although you never know.
3d work is a wish.


After reading build logs for months now i would like to bypass build mk 1 an mk 2 and go for a reasonably good machine.

Work area +/-1250mm x +/- 700 mm x +/- 150 mm (bed adjustable in height)

Constructed mainly out of steel box section (120x80x4 and 80x80x4)

Zaxis aluminium

Designed around 20 square rail , 1605 / 1610 ballscrews, 3nm nema 23 steppers. Watercooled 1.5 / 2.2 kw spindle.

I am reading up on electronics... i am not up to speed yet.
Digital drives separate stepper processor pc / software

I am also not sure if i will need flood, mist, spray or just airblast cooling.
Or how to put this in my design at this point.

I have not yet desided if the machine will be table top or on legs of its own.


One sides of the frame support will be removable to accept sheet material 4x8 sideways.

Not sure about belt or direct drive for y and x or slave motor for twin ballscrews.

I think y and x will see some epoxy before mouting the rails.
Although for the gantry (X) i am still considering having the rail and block (Y) mounting surfaces machined parallel and reasonably flat.

I have access to solidworks (had no training) and basic tooling.

My mig co2 welder is a 155 amp cebora 4mm is about the max it will do.

I will have to buy some measuring equipments like

a basic straight edge 1500mm,
90deg square angle and
0.01/0.001 mm indicator.



This is my first real post and or design please be gentle ☺.






https://cloud.tapatalk.com/s/57b7638dc5df3/total.JPG


https://cloud.tapatalk.com/s/57b76398...Gantry%20Z.JPG



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