Quote Originally Posted by JAZZCNC View Post
I've built a lot of machines that are used for mold or model making for wind tunnels etc in blocks of high-density foam or modeling clay and they use long tapered endmills that are 100mm or longer so, in this case, the rails on front plate design won't work as it cannot lift the tool clear of a tall block of foam.

These machines are designed at the outset for a specific purpose to do a specific job or jobs using similar materials within a known size range. The problem is that if you want an all-round machine to cut all materials and with larger material size range then there will always have to be some kind of compromise unless you take a radical approach and design outside the box so to speak.!

If you are using conventional build designs, which you are, then the machine will be compromised in some area it's as simple as that and there's no getting around it.!

If you want to explore outside the box then you can have a machine that will cut the complete range of materials without any compromises on cut quality and material size range other than the cutting area will be a little less in long-axis direction for the same size machine. I can be done but it's a completely different design that will cost more money.?
Regarding the budget I have planned to stay within 6000-7000€. I have already bougth the 180W JMC servos and power supplys. What is left of the budget is then 5150-6150€.

I am definately going for an all round build. Requirements are:

- 180W JMC servos.
- Work area of approximately 1000x1000x200mm. More is appreciated. Work area is needed for making furniture occasionally, custom signs etc.
- The machine needs to be moveable later when I build my own garage. I am currently using my fathers. This is why I am opting for aluminium profiles instead of a welded frame.
- Machine needs to be able to handle aluminium with good finish. The idea is that I could also potentionally use it to build a VMC later that would be for milling aluminium and steel.
- ATC spindle would be nice but it is not a requirement if it means that my budget will not be enough in other more important areas. I am looking at Jianken ATC spindles but I am open for suggestions!

Have I shoot myself in the foot with the JMC servos?

From where should I buy linear rails, bearings and ball screws? I have heard good things about BST automation.


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