The arrival of the tiny beast, Proxxon MF70

The arrival of the tiny beast, Proxxon MF70

Okay, so this is really just a show-off post. I ordered this machine through my current part-time workplace after drooling over images of it since the end of summer 2010. It’s a miniature milling machine which features 3 play-free manually adjustable axes and 0,05 mm “resolution” on the handles. It has a balanced DC motor capable of running at up to 20000 rpm with no vibration, and a minimum speed of 5000 rpm.

I guess it’s my fascination over small things, or miniature versions of bigger things, which made me want this machine so bad. And I am so pleased with it! I have only gotten to play with it for a few hours yet, and the only downside is the Z axis being hard to adjust to have no play while the handle can still be operated by a human…

There are several articles, blog posts and discussion boards who show you have easy this can be CNC converted. Of course I will have to do this my self, I just need to figure out how to approach it as there are MANY good ideas out there, one more complex than the other. Here is a link to a blog post that shows a very comprehensive modification of the MF70 Retromaster’s Electronics Projects, MF70 CNC. Most of his modifications to the MF70 makes sense to me, so hopefully I will be able to carry out most of them on my machine. Also be sure to check out his other projects!

I’ll finish it off with some pictures

This article has 4 comments

  1. Nice tool! How much did you have to pay for it, if I may ask?

  2. Hi! Can this machine really handle aluminium alloys and other metals with precision and good finish?
    Kind regards,

    Miguel

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