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Servo Driven 4th Axis for CNC Mill
awemawson:
They work and certainly hold the 4th axis securely, but in the long run I'll probably make up a custom clamp as these are a bit chunky as a semi-permanent fitting.
To celebrate I mounted a bit of 1" bar and mandraulically milled a square and a triangle, really just using the 4th axis as an indexer. Although the brake is fitted and worked well, I've not yet run compressed air to a convenient point, so this was done with no braking. No sign of chatter what so ever so for many things I probably don't need the brake - but I will run the air anyway.
Pete.:
That's wicked Andrew.
I have a idea for some mirror mounts for my bike that would require 4-axis milling. Any chance you could do a small job for me when you have the air piped in?
awemawson:
Do you have a sketch or drawing ?
Pete.:
No, but I will have soon!
The problem is I do a lot of filtering through city traffic so I probably fold my mirrors in a dozen times a day or more. This causes them to be loose, and self-folding above about 50mph. I have an idea to cure it but no idea how to machine it manually.
I'll do a sketchup or something.
awemawson:
So the next task is to sort out a tailstock for use with the 4th axis.
I picked up this one, which is bored 2 MT and really intended for a dividing head, as it's a tilt and height adjustable one:
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