Thread: Steel Framed Router
yes thanks Jonathan I saw that thread, very interesting and those stepper mounts looked very nice.
Am I right in thinking the advantage of the rotating ballnut is gained on lengths over 100cm?
If it's a 25mm screw then the rotating nut setup I made has the same inertia as about 700mm of the screw, so you wont gain anything below that. The critical speed of a 700mm long 25mm diameter screw is very high anyway, so you wouldn't need to use a rotating nut anyway. I've not worked out the moment of inertia of the 16/20mm version yet.
I realised the problems with my sketch after I post it, but I had to go out.
But it has made me think of other approaches to this problem.
Thank you all for your input as its very much needed.
I'll be ordering some metal soon so need to get the basic concept right.
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