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HomeMini CNC MachineHow Rigid Can We Make the MaxNC CNC Mini-Mill? The Answer is...

How Rigid Can We Make the MaxNC CNC Mini-Mill? The Answer is Very!


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Plans and drawings in description. They are fairly accurate and work on my machine. I would recommend great care be taken if you plan on doing this upgrade and make sure that none of the holes you are drilling will interfere with existing bolts or their holes.

3D Model Link:

2D Drawings Link:

2D PDF LInk:



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  1. POS , never was any good new. Someone gave me one, I'm giving it back. Not worth replacing all the electrical components, servos are Bipolar 1.55 amp 65 volt and there are no affordable drivers, spindle motor is old school AC/DC combo. Body is weak and 1/4-20 lead screws are pathetic. Don't waste your time and money on one, even if its free.

  2. Man this brings back memories, I have a MAXNC15 some 15+ years ago. I fought with that damn thing for years trying to get somewhat descent parts with it. I finally got it situated and mad some amazing jewelry waxes with it. GOD I HATED THAT DAMN THING!!!!!

  3. In Conventional Milling, the cutter rotates against the direction of the feed. During Climb Milling, the cutter rotates with the feed. Conventional Milling is the traditional approach when cutting because the backlash, or the play between the lead screw and the nut in the machine table, is eliminated (Figure 1).

  4. The column stiffness must be equal to the base stiffness. A force of 10 kg should cause a displacement of no more than 0.01 mm. Better 30-60 kg. Use larger steel reinforcements.

  5. Hi. Not knocking that idea, just asking. Original spindle bearings? I also question you metrology. I can massage my digital calipers to make them read what i want (expect). good video but that looks like a lot of $$$ in Al, at least in australia for a tiny improvement. I bolted my mill to thick steel plate to THICK wooden bench. Not flat in any real sence, but stiff…er. Not negative comment, just talking.

  6. The thick aluminum U-channel on the bottom is good. A block of concrete or epoxy-granite would be better. Cast some long hex nuts into the block to fasten the aluminum support to.

  7. Good vid josh, looks very effective … I don't think my maxnc10 he so much space on chassis for these mods but really cool. What's the cutter size and brand you are using in the side by side comparison ?

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