3d printing to CNC

[Jonathan]

Even Jonathan was against LinuxCNC

That's not the first time someone's said that, so it's about time I pointed out that I was never against LinuxCNC. I just didn't recommend it until I had tried it myself. In May 2010 I said this in a post:

I'm using Mach3 at the moment, I intend to change to EMC.

It just took me over a year to get round to it! I changed when I started cutting an array of parts from an expensive (2400*740*20mm) sheet of aluminium, and had a problem with Mach3 which I've never found the reason for.

Anyway, so I'm not compelled to delete my own post for going off topic...

If you're happy with 150x150mm, then a milling machine would be the best option. Unfortunately quite a lot of the small milling machines have very limited Y-axis travel, so you wont find many with 150mm. For example this one is quite popular but it's only got 145mm Y-travel. If you can't find one, which ideally would be second hand to save money, then making a fixed gantry machine is the next strongest option.

Another reason to get a milling machine is the versatility of the tools you can put in the spindle. For example if you need to put bearings in these parts, then just milling the bearing pockets almost certainly wont be accurate enough, however with a milling machine you can put a boring head in it and bore out the bearing pockets to get the perfect fit.