How to build a CNC Router?

Looking really good so far, although without actually testing with Mesa attached is much safer for deciding, but it is a go for sure from those tests.
I had several T40/T41/T42/T43, they all worked fine with Ubuntu 10.04 and LinuxCNC 2.5/2.7 using parallel port.
I had Lenovo T420S it was not usable, now it seems with new kernels it is quite good.
I had Lenovo X220 it was unusable, now it seems with new kernel it is quite good.
I have X240 in use on a production machine it works fine with Mesa
I have T470 with touchscreen was used on production machine for over a year or two, works fine with Mesa
And so do X1 Yoga and Yoga 370.
There is a topic on laptops, so if it ends up working with Mesa you should add those there.
Thank you.
forum.linuxcnc.org/18-computer/54369-use...ernet-boards?start=0

Thanks for the reply. So I do the testing with my T420s/x220.
(I'll skip the testing with the T43 as I like to use the complete LinuxCNC Distro instead)
Mesa and TB6600 are ordered. As soon, as I get the material, I'll share my confusion with the wiring
Aan when I have some running setup, I'll post in the laptop topic (that's where I got the idea with the T470 touch)

For the T43 use this
www.linuxcnc.org/iso/ubuntu-10.04-linuxcnc3-i386.iso

Parts have arrived, here is my understanding of the wiring per 1 stepper:
meas card needs 5V supply
TB6600 should be powered with the voltage for the steppers (12V in my case to start with).

As I understand it the connections between TB6600 and mesa should be like in my bad sketch.

Looks reasonable.

One thing: never disconnect a stepper motor from the drive with the drive powered up. I don't know for sure that that will blow up a TB6600, but it's definitely not somethng that a TB6560 could survive.

If disconnecting motor from drive while powered on:
-TB6560 will die
-TB6600 will die
-TB6600 that is not TB6600 will most probably survive
The last ones use TB67S109 chip inside despite being named TB6600, it is much better but can do a bit lower current.
I have over 20 of the TB67S109 in daily use, the only issue i had with them is the DIP switches on 4 of those would switch at random from vibrations, so i soldered them.