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Home > General Chat > using milling bits in a pillar drill

joeybaby83

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Isle of Man

i have a big bastard of a pillar drill, and got loads of milling heads (with threaded ends)

can i use these in my pillar drill if i get an mt3 adapter? is it 3/8 whitworth?

I dont want to do any horizontal work, just want to be able to make a flat spots/spot faces on stuff like blocks etc

cheers

joe

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joeybaby83

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Isle of Man

sweet, just found this too

http://www.axminster.co.uk/product.asp?src...NC&pf_id=21342&

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Paul S

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Podland

I use these to hold the cutters:

http://www.axminster.co.uk/src/froogle/pro...llets-22057.htm

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tomf

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Kent

Sorry double post.

Edited by tomf on 16th Nov, 2008.


tomf

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Kent

Yea there shouldnt be any reason why it shouldnt work, but adjust the pillar drill so its running at a slower speed as mills run quite slow.


joeybaby83

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i can knock it down to about 800rpm, and has a 950W motor, im working with cast iron, so should be ok i hope

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matty

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Just take small cuts and slow feeds and you should be fine. Oh and if your can hook up some kind of lubricant/coolant even better. *wink*

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joeybaby83

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well, i havent milled anything since first year uni 6 years ago, so today had a blast at milling my centre main cap

took most of the hump off using the angle grinder, leaving about 1 to 2mm to mill away

set the drill up with a compound table i got from axminster for about 70 notes, and set the drill to 120rpm

the drill:





results were great, i wasnt sure whether it would be up to the job of doing a mains cap, but it was no trouble at all to it, there was a little bit of chatter as the compound table was bolted tot he usual adjustable drilling table which was sturdy but not 'rock solid' so deflected a tiny but and gave a slightly rough finish, but lots of wd40 helped there and it wasnt anything a quick rub on a stone afterward couldnt fix

took a few vids

http://www.youtube.com/watch?v=BZ2d_AVygqU

http://www.youtube.com/watch?v=-5V3iBVNmgk

mic'd up the cap before hand and it hasnt deformed at all, the top is perfectly flat, and its the same thickness end to end (give or take a couple of though), all in all pretty pleased with myself haha

Edited by joeybaby83 on 6th Dec, 2008.

"Turbo's make torque, and torque makes fun"

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PaulH

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how come you took such a deep cut imo that is why you are geting so much tool chatter, Iwould recomend that you take several light cuts at a slightly higher tool speed you will get a much smother finish and a lot less tool chatter

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joeybaby83

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cheers paul, need all the advice i can get

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Bat

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Hi,
Wow a scale model A series block, how long did it take you to make that? *wink*
Cheers,
Gavin :)

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joeybaby83

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Isle of Man

heres a pic of the finish on the cap





what do you reckon? it was on 120rpm, what sort of speed would be best?

Edited by joeybaby83 on 7th Dec, 2008.

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"



joeybaby83

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Isle of Man

oh, also, what sort of end mill is best for this sort of work?

i have loads, some slot end, some with 4 cutting edges etc, all the gear no idea haha

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"



tadge44

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Buckinghamshire

It looks to me as if you were feeding too quickly from the tool marks on the job.As you dont have the power or rigidity of a proper mill, you have to go very slowly.

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