I’ve got my 1st kit and I’m looking to put together a gantry style frame similar to TomD’s design.
I am looking at using a spindle instead of a palm router. Here in the UK palm routers are very expensive and I think I am convinced that a spindle designed for CNC work will be better. Quieter, more durable, more believable power rating etc. Seems easier to construct a good zaxis control with a cbeam or similar.
What are your thoughts spindles? have you got one and how do you find it works?
I was going to go 500kW brushless, probably about the equivalent to most relevant routers available? i like brushless motors. but then for not much more ££ I can get a 0.8kW or 1.5kW air cooled spindle with VFD. Water cooled seems a step too far?
Is more power better if back to brushed motor? with a VFD should be easy to turn the rpm right down. I would like to experiment with cutting other materials like aluminium, stone etc (what ever I can find!)
Can you control a VFD via a G code spindle speed command?
What are your thoughts on collets? E11, E16 or E20?
I also have 3 phase 400V in my workshop. I could rig that up to a spindle, well the VFD. Any advantage to that? or just less losses in the VFD?
Thanks for any thoughts on the matter.
This is a great forum and I am looking forward to contributing one day.