[DA_Spec]

Thinking about maybe getting one of these
Since i dont really have 220v access and a 2.2kw spindle is out of my budget for the moment,will be cutting wood mostly

Anyone has any experience with one of these ?
http://www.ebay.com/itm/112098622563

[CitizenOfDreams]

It's not really a spindle, it's a DC brushed motor with all its problems (need for a special speed controller, unstable speed under load, no torque at low RPM...). I also question the need for ER16 chuck. What kind of tool with a 8-10mm shank are you going to run in a 600W spindle?

So, my advice would be to look for a small 3-phase spindle and a VFD. It won't cost you that much more, considering that you would still need a speed controller for that 110V DC motor.

[DA_Spec]

Well i havent seen anything else that doesnt costat the very least twice the price if you want to show me some go ahead and some

[CitizenOfDreams]

The only thing you can buy within this budget is a 400W brushless spindle with a ER-11 collet. Here is the one I'm using myself:

CNC ER11 48V 400W Air-Cooled Brushless Spindle Motor + Driver Controller + Power | eBay

I had a DC brushed motor before I bought this one, and I consider this spindle a major improvement. Better speed control, better torque curve, MUCH quieter.

[asuratman]

That BLDC motor can be controlled from mach3? Is there any bigger size available?

[CitizenOfDreams]

Yes, Mach3 can control the speed with PWM. And no, there are no bigger sizes. Next size up is a 1.5kW water cooled spindle with a real VFD, the prices start at $200.

CNC 80MM HY 1.5KW ER11 WATER-COOLED SPINDLE MOTOR & DRIVE INVERTER VFD | eBay

[RCaffin]

It's not really a spindle, it's a DC brushed motor with all its problems (need for a special speed controller, unstable speed under load, no torque at low RPM...). I also question the need for ER16 chuck. What kind of tool with a 8-10mm shank are you going to run in a 600W spindle?
I run a 500 W DC brushed motor for my spindle, and I use cutters up to 20 mm in an ER25 chuck. That's on metal, not wood too. But there are significant differences: It's an American Baldor industrial DC motor, rated 500 W for 24/7 operation. And the spindle is separate from the motor, with large bearings. On thwe whole, small bearings are not wonderful.

Not sure about the reference to all its problems though:
special speed controller Well, a VFD is also a 'special speed controller', so I don't see much difference. A KBWT DC supply with a filtered PWM drive works fine (but beware of the RFI!).
unstable speed under load Really? I had never noticed.
no torque at low RPM Steepers have torque at low RPM; the rest not so much. Would you want low speed if you are machining wood?

Cheers
Roger

[mactec54]

Yes, Mach3 can control the speed with PWM. And no, there are no bigger sizes. Next size up is a 1.5kW water cooled spindle with a real VFD, the prices start at $200.

CNC 80MM HY 1.5KW ER11 WATER-COOLED SPINDLE MOTOR & DRIVE INVERTER VFD | eBay

The next size up is 800w and are very popular for this size machine

These 2 are both Dc motors one with brushes the other without, the Dc brushless motor is a little bit better, but still just a regular motor, with regular Bearings, which are not designed or suitable to be used as a spindle, if you want to do any kind of serious work with it anyway, so neither of these motors would be any better than a regular router, except would run quieter, so both are a waste of money

600W 110V DC Air-Cooling Spindle Motor ER16 600mN.m 12000r/min CNC DIY | eBay

CNC ER11 48V 400W Air-Cooled Brushless Spindle Motor + Driver Controller + Power | eBay

DA_Spec

No problem if you don't have 240v single phase, just helped set one up a 220v spindle, to run from 120v single phase, with the addition of a Transformer, you want a 120v 20a circuit for the supply and it's a perfect match for your machine, he runs his whole machine with this one transformer that is120v and 240v supply that is needed for this machine and the 220v spindle
http://www.cnczone.com/forums/spindl...w-spindle.html

[CitizenOfDreams]

For a 800W spindle it would make more sense to use a VFD with 120V input and 240V output instead of a transformer.

[DA_Spec]

I went ahead with the smaller spindle...even the 800w watercooled spindle is costing way too much at the moment
Its 450$ in canadian funds thats including the shipping but not the custom border fees,spindle mount, water pump

Vs 240$ all included for the small one
Ill get a real spindle down the road when ill be setup with my machine

[mactec54]

For a 800W spindle it would make more sense to use a VFD with 120V input and 240V output instead of a transformer.

And you can find the suitable 120V input VFD Drive to support this spindle, the VFD would need to be 1.5Kw with a 120V input 220v 3Ph output, there are 120V VFD Drives for 1 Hp but that is not enough for this Spindle

[CitizenOfDreams]

A 60-second Google search finds Lenze ESV112N01SXB which is a 1.5hp (1.1kW) VFD with 120V input and 240V output. I'm sure it's not the only one.

[RCaffin]

You CAN drive a 1.5 kW motor with a 1.0 kW supply. There is absolutely NO problem doing so. You won't get the top speed or the maximum power the 1.5 kW motor is capabale of, but it will run quite happily at 1.0 kW.

You can also run a 1.0 kW motor with a 1.5 kW supply. Provided you limit the power you put into the motor there would be no problems there either. Sure, push 1.5 kW into a 1.0 kW motor for a while and things may overheat.

It's all very simple really. But those little bearings ...

Cheers
Roger

[mactec54]

A 60-second Google search finds Lenze ESV112N01SXB which is a 1.5hp (1.1kW) VFD with 120V input and 240V output. I'm sure it's not the only one.

Yes there are more than one manufacture that make them , but look at the price

[109jb]

To the OP. I haven't tried it yet, but I am building a small machine that I will be using a compact router on (link below). I figured it was worth a shot at only $60 (I got it on sale). It is 1-1/4 HP with variable speed (10k - 32k RPM) It i supposed to have a built in electronic speed control that maintains the set RPM under load. I intend to use this for aluminum and plastics machining mostly with some wood thrown in too. As I said, I haven't tested it on my machine yet as it isn't completed yet, but I did throw a carbide router bit in it and plowed through a piece of red oak at 10,000 rpm and it seems like it has lots of power. I started the cut aggressively to see if the speed control worked and it seems like it does. The speed slowed initially, but maintaining an aggressive cut it seemed to get back to what sounded like the original RPM. Hope to have the little machine I'm building running in about a week. I'll post how it goes.

http://www.menards.com/main/tools-ha...40295013384149

[DA_Spec]

To the OP. I haven't tried it yet, but I am building a small machine that I will be using a compact router on (link below). I figured it was worth a shot at only $60 (I got it on sale). It is 1-1/4 HP with variable speed (10k - 32k RPM) It i supposed to have a built in electronic speed control that maintains the set RPM under load. I intend to use this for aluminum and plastics machining mostly with some wood thrown in too. As I said, I haven't tested it on my machine yet as it isn't completed yet, but I did throw a carbide router bit in it and plowed through a piece of red oak at 10,000 rpm and it seems like it has lots of power. I started the cut aggressively to see if the speed control worked and it seems like it does. The speed slowed initially, but maintaining an aggressive cut it seemed to get back to what sounded like the original RPM. Hope to have the little machine I'm building running in about a week. I'll post how it goes.

http://www.menards.com/main/tools-ha...40295013384149

As much as i hate my neigbours its gonna be way too loud for my appartement

[109jb]

As much as i hate my neigbours its gonna be way too loud for my appartement

At 10,000 rpm the little compact router I have is very quiet. Hardly any noise to speak of at all. Even at full speed it isn't very loud. In my opinion, vibration from the machining process is going to be more of a problem than the noise from the motor. A simple insulated box would easily take care of the noise of the motor.

- - - Updated - - -

If I get it hooked up and running in the next few days I will post a video and you can see how loud it is.

[DA_Spec]

give it a try and show your result here ...ive already ordered my spindle so i wont change now but if it cant help anyone

[asuratman]

Which spindle did you order?

[DA_Spec]

i went with this one
57mm Air Cooling DC Spindle Motor 110V 600W & Speed Governor & Mount CNC Machine | eBay
bought some collet so i could use different bit size
we will see how it turns out in the end its only to start with my cnc i know ill upgrade for a 2,2kw unit down the road when ill have a workshop with 220v