Newbee question about buying first set of millends

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armanm
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Newbee question about buying first set of millends

Post by armanm » Mon Oct 28, 2013 5:12 am

Hi there,

I've just ordered my first CNC machine, the Shapeoko 2, from Inventables. I want to be able to cut G10 Fiberglass, carbon fiber and maybe some aluminium in future if the machine is good enough (probably not). I will need to attach millends to a Dewalt DWP611 (http://amzn.to/16fNoZK) and don't really know how to choose millends.

Could someone please point me to the right direction for choosing the right size, material and possibly where to buy?

Thanks everyone

WillAdams
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Re: Newbee question about buying first set of millends

Post by WillAdams » Mon Oct 28, 2013 7:05 am

I've tried to put everything into:

http://www.shapeoko.com/wiki/index.php/End_mills

Edward R. Ford has opined that one should just get basic 2-flute, straight end mills to start, made of an affordable material (ISTR anyway --- can anyone find the link?) --- it's inevitable one will break or overheat end mills during one's first few jobs --- getting something basic and inexpensive minimizes the financial pain and maximizes one's learning.

The important thing is to just get cutting.
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Will Winder
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Re: Newbee question about buying first set of millends

Post by Will Winder » Mon Oct 28, 2013 2:24 pm

This endmill from "drillman1" is what many people on this forum started with (it comes in a 10-pack too):
http://www.ebay.com/itm/1-8-1250-CARBID ... 23267e6229

Shipping is fast and a flat rate, and his tools are relatively cheap, so its pretty safe to pick out a variety that look interesting to you.

I'm not affiliated, just a happy repeat customer.
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Improbable Construct
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Re: Newbee question about buying first set of millends

Post by Improbable Construct » Mon Oct 28, 2013 3:45 pm

I agree with Will but he linked to a downcutting bit!
You do not want a downcutting bit to start with.
Drillman1 doesn't seem to have any of the normal 1/8" 2 flute bits at the moment but I am sure he will have more in stock soon.
You have some time... The Shapeoko 2 is not supposed to ship until December 21.

Also If you are going to use the DWP611 you are going to have to create mounts for it (it wont fit in the stock mounts) and get a 1/8" collet.
Precise Bits sells one but it isn't cheap. http://www.precisebits.com/products/equ ... it!!!PG!!!

I would recommend that you start out with a DW660. It comes with 1/8" and 1/4" collets and is inexpensive.
http://amzn.com/B000051WQX
If you find that it doesn't have enough power you can upgrade later.
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Gadgetman!
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Re: Newbee question about buying first set of millends

Post by Gadgetman! » Mon Oct 28, 2013 8:36 pm

The 2 flute 1/8" seems to be a good starter.

Ball-end can be nice for rounded shapes, so if you can get a cheap set of 1/8 two-flute there, too, that's nice.

Then there's the Dremel 115...
( 5/16" endmill. )
If nothing else, it should be good to flatten the wasteboard properly...
It's commonly sold as pairs on both Amazon and The Bay of E.
Weird guy...
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zerblatt007
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Re: Newbee question about buying first set of millends

Post by zerblatt007 » Tue Oct 29, 2013 8:40 am

WillAdams wrote:I've tried to put everything into:
http://www.shapeoko.com/wiki/index.php/End_mills
There are no one-flute bits there :)
I did my first acrylic cut with this bit a few days ago: http://www.sorotec.de/shop/product_info ... mm-z1.html
And it is amazing! Very sharp edges and no melting at 25000rpm.. Need more experience with it, but I really like it for hard plastics so far.
WillAdams wrote: The important thing is to just get cutting.
The one 2-flute bit that Edward included in the Shapeoko kit a year ago is still my most used one.
Shapeoko #958: Dual-Y drive, Double-X, Belt on outside, 1m Y-Axis, Acme Z, Opened up and boxed in. Kress 1050 Spindle.

WillAdams
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Re: Newbee question about buying first set of millends

Post by WillAdams » Tue Oct 29, 2013 10:40 pm

Added 1 flute bits and the link you posted.
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

iquizzle
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Re: Newbee question about buying first set of millends

Post by iquizzle » Sun Nov 03, 2013 4:07 am

For milling plastics, I've read that O-flute (pronounced Oh-flute) end mills are a dream. This one for instance: https://www.inventables.com/technologie ... e-straight I haven't tried one, but the concept makes sense to me. It's the first bit on my list when I get my kit. Otherwise, two flute is a pretty good all-around milling bit.

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