Milling Spindle Motor

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Subject Author Date
Milling Spindle Motor alan@jackary.plus.com 08-25-2006
Posted by =?ISO-8859-1?Q?Nick_M=FCller?= on August 26, 2006, 4:54 pm
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> Can you explain how to calculate this, please ?

OK, lets see:

Math is in metric. :-)
[if I write x//y it means x index y]

given:
Cutter diameter = 10mm
depth of cut = 10mm
number of teeth = 3
I assume rough cutting of MS with reccomended feed per tooth and RPM.
That would be:
feed / tooth (f//t) = 0.016mm
cutting speed (v//c) = 28 m / min

P//c = a//p * f//t * N//c * v//c / 20

with:
P//c : Power f. cutting steel (in kW)
a//p : depth of cut
N//c : number of teeth cutting (with a 3 flute cutter, 1.5 teeth are
cutting in average)

P//c = 10 * 0.016 * 28 * 1.5 / 20 = 0.336kW


All that could be calculated more precise. I tried it, but got lost in
zillions of tables for specific cutter properties, material, dullness of
tool and number of beers.


HTH,
Nick
--
The modular DRO
<http://www.yadro.de>

Posted by rack2000 on August 25, 2006, 3:29 pm
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 If you are going to buy a motor. Why not check out the cost of a motor and
speed control for a mini mill such as a Clark or similar. I think these are
about 350 watt and most will have overload cutout incorperated.

Chris.
> Hi All
> I am planning to make a milling spindle for my chipmaster lathe. I
> cannot decide which type of motor would be best. It needs to be
> resonably small in size. I have a small single phase motor and have
> thought of using a sewing machine motor but maybe they will be too low
> on power. If I used a DC motor I would need a power supply which could
> also vary the speed. This seems to be the best solution but I do not
> know enough about power supplies any suggestions? I run the lathe via
> an inverter which works very well and have considered switching it to a
> 3 phase motor for the milling spindle but again I do not think I can
> get a small enough sized 3 phase motor. I beg you please do not inform
> the electrical police about this.
> Regards
> Alan
>



Posted by Steve W on August 26, 2006, 3:26 am
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> If you are going to buy a motor. Why not check out the cost of a motor
> and speed control for a mini mill such as a Clark or similar. I think
> these are about 350 watt and most will have overload cutout incorperated.
>
> Chris.
>> Hi All
>> I am planning to make a milling spindle for my chipmaster lathe. I
>> cannot decide which type of motor would be best. It needs to be

I had this quote a while back for a project thats still not made it to the
top of the list:

This is for the motor for a Seag C3 lathe. I've not dealt with Adam, so
can't provide any references.

Hi Steve
Motor £49.99
Drive Board £39.99
P&P £8.50 FOR BOTH
Regards
Adam

Adam Labudek
Total Machine Tool Technology Limited
21 Charles Street
Market Harborough
Leicestershire
LE16 9AB
Tel: 01858 440540
Mob: 07815 538639
Email: totalmtt@ntlworld.com





Posted by Peter Fairbrother on August 26, 2006, 11:07 am
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John Stevenson wrote:

> On Sat, 26 Aug 2006 08:29:02 +0100, "Steve W" <steve> wrote:
>
>>
>> "Steve W" <steve> wrote in message
>
>>>
>>>
>> PS: A helpful gentleman at Seag sent me schematics for various of their
>> controller boards.
>>
>
> Steve,
> I also have a project that uses the Seig boards.
> Any chance of a copy of the schematics please... pretty please ?

Me too, please.


--
Peter Fairbrother


Posted by Kevin Steele on August 25, 2006, 3:33 pm
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>I am planning to make a milling spindle for my chipmaster lathe. I
>

If you don't want anything too big the Sherline unit is quite good.
Powered by a 90V DC motor, with built in speed controller. Lots of
standard accesories as well -collets, chucks, etc.

Regards

Kevin

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