extrusion construction

[irving2008]

I would like to construct my cnc bed from 60x60 extruded aluminum.
It should end up in the region of 1.6mx1m with 2 additional cross bars for the work surface.

I am just wondering if, after ordering the lengths, they would need any aditional machining/rounding off. (I am sure it will differ between suppliers)

Have any of you had experience in this? Is it possible to just order and assemble and expect them to line up?

Also, if you could suggest a good supplier, it would be much appreciated.

Most will only guarantee cutting accuracy to +1 or 2mm as this is down to the operators setting of the cutting jig, but usually identical lengths will be very close to identical as the cut is very repeatable. You can often specify higher accuracy at a price, read their website small print.


KJN are often cited here as a good supplier, although I have no personal experience