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Can you replace the spindle on the PM-25 with a BT-30 ATC Spindle?

Hello Craig, Thanks for the informative reply.

Finding low inductance stepper motor got tricky. So far from stepperonline.com I have found the following:
"P" Series is their professional line of...

Hello Craig.

Thanks for the reply.

Nice info about the inductance on the stepper motor anything over 2mH for the NEMA 23 and 4mH for the NEMA 34.
I didn't know about this until you have...

Also I have reached out to David Clements to buy a CNC kit for the PM-25.
He recommended to told buy the following closed-loop steppers for it, they seem to be affordable for entry level CNC usage,...

Thanks for the reply.

So there is a new CNC breed in the game which got my attention beginning of this year seems promising for $4,500, the Langmuir MR-1, which is a gantry based design and weighs...

Good review on the tolerances. I might get this. How much you think a CNC conversion kit would cost?

Thanks for the reply.

So I'm not sure which mill to get now under $3K. I also need to account for another $1,500 for CNC kit (ballscrews + steppers/servos).
I live in the US and it seems only PM...

Hello Craig,

Thanks for the helpful information. Things are making more sense now on how to go about with the project practically witht he .
Many people was telling me to spin it at 60K RPM lol....

Hello,

You think a Shapeoko 5 Pro or PM-25mv will be good to make 0.6mm sitting saw cuts to make PC water cooling blocks?
I want to get the 5 pro because it's easy to assemble and have great...

Please make a step-by-step video, I'm interested to build.

He meant that Piotr's build is much more complex and advanced than his CNC. Piotr is using solid natural granite, it's the premium standard for making high precision CNCs. It does not shrink and is...

Impressive, what kind of accuracy are you getting?
Also, have you put any cement in the gantry's steel box tubing?

What type of structural cement did you use?

Can I use non-shrink precision...

Hello,

I'm not sure if the PM-728VT ultra precision bench mill bought with the ultra precision CNC kit is able to use 0.2mm (~8 thou) flute Flat Square End Mill spiral bits.
Example:...

Hello broussard.

I hope you still produce them, will be calling you soon for my bridgeport rebuild need Ballscrews are Precision Ground to an accuracy grade of C4 class .0005/ft.

For $825.00 +...

I'm rebuilding bridgeport mill, want to know how did the Chinese ballscrew worked out for you in terms of accuracy, is it much big difference as to hiwin's ground ballscrews?

Hiwin's is like $2K...

Hello Mr. Dawson, thanks for your reply, hope you're doing well.

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Alright, so when I see 0.0015" it means 15 tenths, got it.

Could it also be said: "one thou and 5...

Hello,

Is it correct to say 15 tenths is 0.00015" ?

Thanks.

Holy cow, MikeGM won the world's award for making the largest DIY CNC mass base and gantry. Seriously wants high tolerance.

I wonder what tolerances he would get in real life...

Thanks for the reply. I do not think HIWIN has ballscrews at 7 feet (2133.6 mm) length.

Hello,

I would like to build a CNC router with a dimension of 4 foot (x-axis) x 7 foot (y-axis). For the Z-axis I'm assuming maybe 1 foot of travel would be fine.

It needs to be a precision...

Interesting, I want to build a 4 ft x 7 ft CNC router for 3D carving wood, like making chairs, tables and doors which has 3D carvings.

From my understanding to have fine 3D carving details one...

Has anyone received the messages?

This forum website is really weird... seems like there's a new version of this website. I sent a PM and it didn't go through when it originally told me it did.
I sent messages on the newer website....

I will PM you thank you for the reply!

Don't ask why, don't advice to buy one.
Tell me how to build one.

There was a troll at a different forum and my thread got locked.

Anyways, with all the trolls put to the side, how can I build...

Thank You.

On the expensive commercial 3, 4, 5 axis CNC lathes, what kind of motion mechanism is used for tool head to move along the x, y and z axis, does the industry use ball screws, lead screw or micro...

Thank You,

How are these tiny little holes are made into the inner walls of the coupling where the ball bearings fit into?
(I uploaded a picture)

Also do you think I'll be able to make few...

Thank you for the helpful information.

For some reason it is extremely difficult to find any literature or information about the engineering and design for quick connect couplings.

Would you...

Materials: Plastics, Copper, brass, aluminium and stainless steel.

Power: I have single phase 208V/120V delta wye, but I can also upgrade to 3 phase with 440V/277V delta wye which could take 2...