Accurate Strong Gantry

[vargai]

Here is the 3kw/3.2-4kw i believe also/ spindle with all sizes if you dont have it at hand.

I prefer to download 3D model of all stuff and it is not supplied so thank you this and other information.
I will make my model to go further.

If one use this spindle occasionally only for fine milling in steel(up to 3-4 mm flute small doc) there is no point to make extra attachable spindle except handling the main gently.
When I am right the main DIA of the rotor is 25 mm(suppose the bore of the bearing same) so it has much stronger then my mini spindle with its 15 mm bore bearing. At this case I would not rank the spindle application
based on material but based on load.
There are coated cutter for HSM in steel rated for 7-8k rpm. At this value the torque is about 1/3 of the top ( I will check the curve) so this gives an additional protection for the spindle.

I have an offer for both 2,2 and 3 kW Guanzhou spindle and saw the 2,2 kW is popular among builders.
Does the bigger worth the 200 USD price different on a general router-or the bigger the better?

So actually its not a discouragement, its a reality check. I will be more than happy to see it done. Cause i will do it also.

I am agree with the advice to go step by step. A 700x1000 mm commercial LSM CNC mill has a roomful foot print and it cannot be compressed to my design with impunity.By sitting in front of monitor and doing 3D designs some(me) tend to loose the sense of reality. So I go further with a router and it gives the possibility beside other matl to work with wood that I like too. In the mean time I can check things in the reality. I can reach from A to C through B and maybe it will be shorter way.

If you decide to go this way, i will send you the plugin.

I have to jump in to the electric stuffs first to understand completely this language.
I revert it later, thank you in advance