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Lovely job Wal!
Though we expect nothing less of you ;-)

- Nick

The answer is easy, the implementation of it is not, you set up a factory to make the Aluminium Foam filled parts of your choice, it is not an "Aftermarket Filler" choice.

Machine model?

Many OEM spindles have recommended Warm Up routines, doesn't your manufacturer have any recommendations?
If you can find out what make of bearings are in it the bearing...

Mike,
In order to avoid unpleasant surprises you ideally need to choose a machine which someone else has converted and documented, this way you will know in advance what will fit where and what...

I'll let you know about Oil and the Silicone Tube.

On oil introduction, the oil is introduced into a sleeve concentric around the air tube, the oil sleeve is shorter than the air tube and it's...

We really need a "Like" button! :D

Serious professional builds usually have intermittent oil feed to the nut, this not only lubricates but keeps the screw and nut clean as the oil carries away any dirt.

Check your stepper to shaft coupling isn't slipping, and that the end float control bearing isn't moving, the best way is disassembly and reassembly as "Looking OK" has often proven misleading to...

Welcome aboard Denis,
if you have a read through some of the build threads here I'm sure you'll pick up some good information, and always ask before spending your hard earned cash as here you can...

Yeah, You added a "D" and assumed it meant Diameter, I think some users missed how useless a 200mm Diameter Ball Nose End Mill is for machining anything but flat surfaces and cylinders and didn't...

You can get ER collet chucks on straight shanks which are very easy to mount in suitable bearings, that might open the door for you to have simple adaptors which screw to your mounting boards. ...

I've finally gotten around to fitting the ball screws to my small simple test CNC mill conversion, the ball screws were bough here second hand but pretty much unused and were a "close but no cigar"...

I was talking to a guy who does control electronics for a living and he suggested twisted pair on all data cables inside an enclosure as a better option to shielded.
Logical when you think about it...

From the looks of that you need to set
Maximum Operating to 400 and
Minimum Operating to the correct percentage of 400 to give your spindle's rated minimum speed.
Reference Speed to 400 and ...

I don't know about it's output, the machine itself is a work of art!

You get less rigidity and torsional strength for your weight than with one larger box.

Surface mapping is a chumps game, surface following engraving spindle noses are available, used with a sprung spindle and chip wash/air there is no reason to know where a surface is within a couple...

My thoughts too, if fixed force.
For fixed speed a stepper, stepper driver, variable frequency pulse generator and toothed pulleys & belts.

Excellent!
I'm sure your enthusiasm will shine through and land you a place, let us know how it goes,
Regards,
Nick

Perpetual Motion is a What?

"On our planet we can only try to get as close as possible to this phenomenon"

Perpetual Motion is not a Phenomenon, in this reality, with the Prevailing laws of...

Most CAM will throw in a G54 by default unless you configure it to do something else, consult your CAM publisher's documentation for details of configuration.

You can knock most of the point off a spiral flute tap without affecting it's function. In this way you can get close enough for finishing off with a custom trimmed bottom tap with reduced lead-in to...

It actually says

Control terminal number 5 -- +10V Reference -- Analogue output, +10v Reference for speed and current set points

It's the 10v you connect to one end of a pot, with the other...

Machine rigidity is key to cutting capability.

I have amassed the Ball Screws, Ball Nuts, PSUs, Steppers, Drivers plus a Milling Machine for a mid sized CNC mill conversion and although I have a Mach3 license and Mach3 runs my small 4-Axis...