Sturdy and Fast all Steel CNC , my first build

[Boyan Silyavski]

Nice looking machine but the eye is drawn to those brackets from the gantry to the X ball nuts. I know from your posts that you will have made sure these are correct but I have to say they look flimsy in comparison to the rest of the machine.

On the photos maybe so, but in real life they look normal. Furthermore the actual distance where they are not attached to something is very very short, so they are reinforced by the ball screw nut and the gantry.


Now i want to say it:
The machine is ready and running

Thanks to all who helped and all who watched the progress.


I would like to write soon a more detailed final conclusions, as these days again learned many things.

But for now i would say that i am extremely happy with the result.


Now about the final accuracy i achieved. Today i run it for first time cutting. My typical starting test is 25mm OD circle in 50mm square

Pictures speak better than words but lets say that all the careful fiddling payed itself and the final/accumulated/ accuracy of the machine without any compensation on mach 3 motor tuning and so is 0.01-0.02mm or less , having in mind that the digital caliper measuring may be not perfect. As you can see perfect super clean circle cut. No mismatch or whatsoever.
PS.The bed is 5cm thick so the Z at the test was extended at its lowest point.



All motors are tuned at 8m/min but i believe it can do much much more. I will test it further when on the floor, cause its quite dangerous now to move very fast, the supports flex like crazy.

After 1h of continuing run/ i am surfacing the 10mm plastic bed i fitted over 50mm wood and composite board/ the motor temperature at Y and A/the gantry motors/ is 55C and the X and Z motors is 35C . Its 24C outside.

Soon will post video and some further notes .

Thanks again!