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No I was talking about servo motor .
Router has adjustable speed on its own .

Good point but I need this motor exactly for low rpm and high torque, spindle side up to 1500 motor side 3000rpm or less depending on tool size.
For high rpms i have router 10000 to 30000 rpm fits...

I took a big risk to base spindle on wheel bearings and it payed off .
Like I mentioned I work in the machine shop. I can make stuff on my own time.
I used SKF wheel bearing as a main bearing then...

See if I do 2 to 1 ratio I am going to have almost the same torque as your motor. Not that I’m compering apple to orange but my choice is clear considering lower power requirements and smaller size ...

Exactly it is hobby machine/ learning process into electronic associated with it.
If it starts making money then yes investing in better hardware will be ok.
I like challenge of learning new things...

Here is the video running on current setup in my shed.
https://youtu.be/Tx_Fx-cQq5o

You are right not ideal motor but is one that I have on hand .
It’s in my opinion better then jacuzzi motor used know (also on hand)
And I can easily switch between them if needed.

What is your motor torque in Nm ?
If am correct brushless ac is a bigger in size but less torque then brush dc servo motor.

I have to mention that I have to stay at low power consumption (in the shed on a single plug at 120V).
Just to give you the idea how much power is drown when I run the machine on current setup (450W...

Hi
Just to clear some things out. Torque on this motor is higher then my single phase ac motor currently on the machine (7.2A at 115V and 3450rpm I am cutting speed to half by pulleys ).
At...

Thanks all for replying !
As I stated it is a learning process primly. I have Low budget Mach3 machine no planed upgrades other then to learn integration like this.
So far what I learned is Mach3...

Thanks for a quick reply!
You are right I don’t really need rigid taping it is more of a learning process.
I do work in the field and use cnc professional mill and lathe .
And often skip taping on...

Firs just by looking at a bearing specs (not a precision bearing) tells a lot.
If budget is low maybe you can swap the bearings whit high precision later if everything else is made well (?).

Hi
I have Kollmorgen U12M4 Servo Disc DC Motor and I am hoping to use as a spindle motor for my milling machine.
I am going to add a Mach encoder to the spindle and drive 2/1 ratio mining running...

I agree completely.
I used SKF 39mm id 68mm od and 37mm long wheel bearing for 40 taper.
And if you are looking for a detailed drawings to build a spindle then you bather buy one.
Not being rude...

Most expansive part in the spindle is a bearings ask the seller bearing numbers and google to see how good they are.
And how precise is machining for bearing fit. I am using car wheel bearing on my...

Yes I know and have some openings to fill some sort of damping material.
Stuffing rags in Z column made some improved noise reduction. I like to stay at low weight until permanent position is...

Taking in account chip china linear rails I am impressed with results.
Yes they are little out on rolling momentum (block on rail not parallel) ,1 out of 12 blocks -.003" shimmed, others +- few...

Essential minimum to be able to run but runs never the less .

https://www.youtube.com/watch?v=svqsjyrrFgM&t=2s

Checking for parallelism.
https://www.youtube.com/watch?v=jIwdEJhxMJM

Spindle motor attached .
Motor is a 115 v 7.2 Amp and 3450 rpm from a jacuzzi tub.
Rpm reduced by pulleys to about 1/2.

I do CNC machining for living 30y and tried all. I like to use 4 flute endmills on steel 2 flute on aluminum and yes sometime I vent past the flute but not on many parts just to save time (picking up...

Z column and spindle in place .

https://www.cnczone.com/forums/attachment.php?attachmentid=439542&stc=1&d=1585705128

Spindle is finished . This is going to be tool change capable spindle with bearing balls and spring washers to retain tool .
Main bearing is VW Golf front wheel bearing washers are 24 pc 1” od 3/8...

Forgot to mention aim is to make mill reasonably precise considering cheap ball screws and rails.
So engraving light milling steel but mostly aluminum.
Everything is decided in advance so no...

https://www.cnczone.com/forums/attachment.php?attachmentid=438830&stc=1&d=1585016281
Spindle for BT40 tool holders little to big but cheep to find used and new.
Main bearing from auto front wheel ...

https://www.cnczone.com/forums/attachment.php?attachmentid=438808&stc=1&d=1585011214
https://www.cnczone.com/forums/attachment.php?attachmentid=438806&stc=1&d=1585011214

https://www.cnczone.com/forums/attachment.php?attachmentid=438794&stc=1&d=1585006744

Last year I bought linear rails and ball screws from China also closed loop nema 23 2Nm motors and Mach3 breakout board with mpg.
This year build began . Hopefully this epidemic scare is going to be...

Hi
I got hold of old TOR cam cnc lathe.
Used in schools (Ontario) to teach cnc machining .
Any info on pin out or driver board .
Started with cleaning and then I’m going to probably use Arduino...