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I think that until this day happen, there will be a huge amount of broken bits anyway, so one more... :-D :-D :-D

Fully agree with peteeng. Also adding that you will have problem with establishing Xaxis ballscrew bearings with a ballscrew nut and Xaxis rails, because you place each other in a different plane. ...

Dont do that. Thats common way to make some fuse, but here it is not wise. Driver need precise information about the motor, it not just power up motor, it also watch actual state of the coils, their...

I have used a simmilar motors once. I think that you can use 2,69A RMS, and best torque/speed you can get is at 800 pulse/rev. Please check the stepper motor, if that described amperage is for serial...

Tony, this is at 80% because of aluminium alloy type. In general way, here is the most common types, represented by 4digits -
10xx - just pure (>99%) aluminium, mostly cant be machined, because it...

So much disagree... But you are right in some way, I have build one 4meters long that walks around :-) But thats not the point.


And soo much agree.
Thick - this is the word. I am talking about...

Some pictures of building a mill like you want to build...

https://www.youtube.com/watch?v=L6jjQLbAg3w

The tour of the last mill, just for inspiration......

I see them normally on this forum, at the same page you are reading this post. Its weird...

Not like the mills, bicycles are not cutting another bicycles. At the normal circumstaces, of course :)
Out of fun - what I am talking about is that bicycle doesnt need to solve problem to hold...

Yes. We are making lighter goods. But there is a huge difference between bicycle and milling machine. See the building process of a professional mill, like Fanuc or Haas. You can find it at youtube....

Columns and twisting? Suppose that we are not understand each other. Columns can not twist, there is no force like that. Columns most likely bend with X movements. See the sketches, just to...

pics...

That will not help. Any "webing" on the column is nonsense. It just beatiful, nothing more.
At mill machine, you need mass, mass, and mass again. You need to consume vibration, and no "webing" ever...

Hi.
Yes, you miss. Your gantry is a really high, so you must consider the torque of whole gantry ;-)
The fact - if you want to cut some harder wood (or aluminum!) with any router bit more that 2mm...