New Spindle

[Boyan Silyavski]

No not true at all I've built several machines that use the 2.2Kw running on 16mm rails. The rail size has nothing to do with spindle and everything to do with handling weights and loads of gantry and even the 16mm round rail easily handle most average DIY machine loads.
Where the round rail falls down with aluminium is the fact they are not accurate enough to hold tighter tolerances often needed when cutting aluminium, the actual size of rail is irrelevant.
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Yeah,you are right. I was imagining the precision cuts with almost none finish work, the way i dream of.

Anyways for a correct answer the machine should be judged in its details and totality, cause there could be other weak spots which could make irrelevant or preferably the mounting of a 2.2kw spindle.

PS. I just advised the guy i am building a machine for to buy the 0.8kw spindle as he will run only 3d jobs with fine details due to the electricity cost here in Spain and especially when you pass over your home quote.