What router to choose? AMB (kress) 800/1050 or MM-1000

I use a FME 1050 myself on a SC 1/420 and the machine can cope with it.
Just be gentle with the feed speed and cutting depth, don't overstrech the stepper motors and Y belt.
The router will eat itself in the material no doubt but how harder you puss to the limit of the machine the sooner it gets broken.

I check the tension and play in the machine every 20 working hours, for that reason I have a workinghour counterclock attached to the steppie.
Good maintenance is the way to have much fun of yur steppie.

Have fun

I test more here, actually put 2kg on the Z axis, abs no problem, up and down like a dream, my problem was a noise isolating layer under the SC420 there wa'sent 100% level and therefor lockup the axis,, on the level table , it runs perfectly..