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I'm a lurker (hoping for a Mikini someday :)) , but thought I would post a comment. Some CNC mills have an internal DC bus that supplies the servos. To produce that, the input AC is rectified and...

I agree, it looks very nice! I don't think I've ever come across a used Mikini. Where did you find it?

Smallblock, - thanks for the reply. I'm in no rush (have other pressing work at the moment) and can wait a while if needed. But I have several projects on the horizon and would like something by,...

Hi All, -My first post in this forum. Interested in the Patriot for use in a small home shop. While reviewing threads on this model I saw the above. Any idea when this new and improved model will...

If I buy one it would also need to go into a basement shop. That would require moving it down a flight of stairs. Did your move involve stairs? If so, how did you handle that, given how heavy it...

That would be hard to say without knowing more about the parts you plan to make, the load they place on the servos during milling, how many hours a day you expect to run, etc. But what I can tell...

I would expect servo's to position more precisely, although the difference may be minor. However, they're also much more energy efficient. So for the same input power (which could be limited if...

How do they compare with regard to precision? In particular, what is the tightest tolerance you find you're reliably able to hold with each? For me, that's just as critical as speed.

Thanks...

Just curious. What prompted you to buy the Mikini since you already had a Tormach? Assuming you needed another to keep up with a growing work load (which I'm guessing) I would think there would be...

Thanks again NC Cams and Geof. Your suggestions (along with all the others) have been very helpful. At this point I think I know enough to complete the tolerancing these parts - or at least most of...

Thanks for all the great replies. It's all good info, and it's given me a lot to think about.

As I think about this more, and as alluded to in some of the replies, there are really two main...

This is my first experience creating engineering drawings for fabricating a two part assembly. The assembly consists of a hollow cylinder (2.5" ID, 3" OD and 3"length) that fits inside a cylindrical...

Thanks derej308 for the comments and recommendation.

What did you think of this text? Looks like a good one based on the reviews, and I'll definitely check it out. I'm looking forward to getting...

Could anyone recommend a good (introductory) text on Geometric Dimensioning and Tolerancing? I'm trying to come up to speed in this area.

Thanks!

Thanks for the replies, and the 12L14 material suggestion. I'll look into it.

I had originally looked into purchasing stock hardware for this, as someone suggested, but the issue was finding a...

Hi All,

I'm working on a project where we plan to test a new low friction coating on an ACME lead screw and nut. To get the best performance (lowest friction) possible, the thread surfaces should...