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Author Topic: Milling machine MT or R8  (Read 6356 times)

Offline Graz

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Milling machine MT or R8
« on: November 03, 2010, 03:28:30 PM »
Hi another stoopid question, what would be best to get MT or R8 in a milling machine, what's the pros and cons of each?
 Thanks for any replies.
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Offline Darren

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Re: Milling machine MT or R8
« Reply #1 on: November 03, 2010, 03:58:30 PM »
Get R8, MT's are often a sod to remove ...
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Offline Graz

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Re: Milling machine MT or R8
« Reply #2 on: November 03, 2010, 04:04:41 PM »
Quote from: Darren on November 03, 2010, 03:58:30 PM
Get R8, MT's are often a sod to remove ...
Can you still use MT drills and reamer with R8 is there an adaptor?
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Offline Bluechip

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Re: Milling machine MT or R8
« Reply #3 on: November 03, 2010, 04:35:52 PM »
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Offline j45on

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Re: Milling machine MT or R8
« Reply #4 on: November 03, 2010, 04:43:08 PM »

Dosent it kind of defeat the point of buying a R8 machine and then using it with an R8 to MT adaptor  :scratch:
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Jason

Offline woodguy

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Re: Milling machine MT or R8
« Reply #5 on: November 03, 2010, 04:45:09 PM »
If you might want to purchase used tooling, the choice may well depend upon what country you live in.
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Offline kwackers

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Re: Milling machine MT or R8
« Reply #6 on: November 03, 2010, 05:18:46 PM »
If I didn't have the tooling already I'd probably buy R8. All my tooling is MT (2, 3 & 4) and some 30INT.
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Offline AdeV

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Re: Milling machine MT or R8
« Reply #7 on: November 03, 2010, 05:50:01 PM »
Quote from: j45on on November 03, 2010, 04:43:08 PM

Dosent it kind of defeat the point of buying a R8 machine and then using it with an R8 to MT adaptor  :scratch:

Not necessarily; nearly all my tooling is R8 (or collet based), but that long drill I used came with an MT end. They don't do 'em in R8... So, 1 adapter later...

IMHO, R8 is a better system for vertical milling, as it's less likely to jam up, and also the tools are less likely to fall out if they don't take a drawbar (I'm thinking drills here).
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Offline Stilldrillin

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Re: Milling machine MT or R8
« Reply #8 on: November 04, 2010, 05:03:17 AM »
My little mill is MT3, and I REALLY don't like having to beat the taper apart. However lightly I've pinched the drawbar.......

If starting fron scratch, I would go for R8.  :thumbup:

David D
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David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline Graz

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Re: Milling machine MT or R8
« Reply #9 on: November 04, 2010, 09:13:45 AM »
Thanks for the replies I didn't know what the pros and cons were but would like to be able to mill, drill and ream on the same machine, I have some MT drills and reamers but never owned a mill before.
If I got the R8 and used an adaptor for the MT drills and reamers would I loose some of the spindle to tabe length?
 
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Offline Chazz

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Re: Milling machine MT or R8
« Reply #10 on: November 04, 2010, 10:08:11 AM »
My mill has a .75HP motor and MT3 spindle.  I think MT3 gives you a range of up to 3/4" tooling (which is fine for a .75HP motor) and with R8 you can go up to 1" tooling which again, I think may be too much for my machine.  As a 'Do over' I'd look for a 1HP x R8 machine.

my 2 pesos, and yes you will lose about 1" in table to spindle clearence with an adaptor.

cheers,
Chazz
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Craftex CT129N Mill & Craftex 9 x 20 CT039 Lathe

Offline Stilldrillin

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Re: Milling machine MT or R8
« Reply #11 on: November 04, 2010, 10:37:55 AM »
Graz.
I do most of my drilling in smaller sizes, mostly. After swapping the original 13mm chuck for a 10mm one, I gained extra height/ clearance......

6th pic down.......   http://madmodder.net/index.php?topic=3141.0

David D
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David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline Graz

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Re: Milling machine MT or R8
« Reply #12 on: November 04, 2010, 12:48:32 PM »
Thanks again for all your replies I'm getting a better undestanding now, I've seen quite a few posts about difficulties removing MT tooling. It's looking like R8 is the way to go.
The hole sizes to drill and ream would be up to 1"
I don't have a big budget for the miller as I'm bearing in mind the tooling which I will need to buy, I'm already looking on ebay to get some sort of costing for the basic tooling.

Thanks again, all replies appreciated.
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