Which Spindle?

[renatoh]

Hello all Shop Botters

My name is Renato and I am kind of new here on this forum.
Even though I have never used a CNC I've been working with 3D modeling per about 12 years now.
I attended the Shop Bot camp last month to learn a little more about this nice machine and see if it would match my expectation.
Now I am getting realy close to place my order on one Buddy Alpha 48"
The question now is which spindle should I get the 2.2 hp or the 4hp?
What would be the advantage on one 4HP spindle over of one 2.2HP
Any suggestion would be appreciate

[rb99]

POWER!!!!

RIB

[henrik_o]

What is it that you are planning to machine?

[renatoh]

Mainly wood work, but it doesn't mean that I am not going to work with Aluminniun on the future.
Even though I know the difference is power I would like to know how this difference of 1.8 hp between them could help me or not

[ron_moorehead]

Simply speed,

With a smaller spindle you may have to go slower or take less of a bite or multi passes to cut through your material. If you going to be doing a lot of 3D work most of your cutting is going to be with a ball nose and a larger spindle will not make a diffence.

Hope this helps.