Milling Machine

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richard armstrong
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Milling Machine

Postby richard armstrong » December 17th, 2017, 10:43 am

Hi all

i was wondering if anyone has got a engineers milling machine that i would be able use and have access too

I have brought Some quick change tool posts for my myford 7 and they do not centre correctly i need to mod them so they drop below the cross side, i need to notch so the can drop below the cross slide?

i have 8 to cut a recess in

see vid

https://www.youtube.com/watch?v=8IzKCXwjjsM

I am Newark based, will travel

if anyone can help please get in touch,

qctp.jpg
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Alan Cantwell 1131
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Re: Milling Machine

Postby Alan Cantwell 1131 » December 17th, 2017, 11:18 am

What a hard way of doing a simple mod, mill the cast iron toolpost platform away on the compound slide, done this on 21 myfords at work over the years, doesn’t need much, the existing toolposts, and the centre height adjustment are plenty tough enough for some bloke in a shed, I do this for a living, our machines have been hammered over the years, all witht hese toolposts, no probs

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Re: Milling Machine

Postby Alan Cantwell 1131 » December 17th, 2017, 11:20 am

The cross slide, by the way, is not the one on the top, it’s the one that winds across the face of the job, the compound slide can also be referred to as the top slide, it’s the one that can be swivelled through 360 degrees, for turning angles etc, God, talking lathes on a weekend, Yuk! Ive got a myford super 7 in the garage, not gone round for 15 yrs, wonder if it ever will?

richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 17th, 2017, 11:51 am

alan thank you
can u supply a photo of what you mean not sure what you trying to get at?

are you saying to mill/grind the top slide back to inline with the tool block ?
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richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 17th, 2017, 12:25 pm

topslide.jpg
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richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 17th, 2017, 12:29 pm

for me its easy to mill the tool holders as i have 8 chances, with milling the top slip its a one shot deal?

but i do like that option instead of 8 runs a single run?
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Rob Buckley
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Re: Milling Machine

Postby Rob Buckley » December 17th, 2017, 12:38 pm

If it's just a bit needs nibbling off the bottom of the toolholder, hack a bit off with an angle grinder, be done in 5 minutes.
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richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 17th, 2017, 12:54 pm

Rob Buckley wrote:If it's just a bit needs nibbling off the bottom of the toolholder, hack a bit off with an angle grinder, be done in 5 minutes.



i like the idea, but if a jobs worth doing do it properly not bodger it
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Rob Buckley
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Re: Milling Machine

Postby Rob Buckley » December 17th, 2017, 1:03 pm

'Properly' is the enemy of 'doing it at all'

It could be done 'properly' with a hacksaw & a file, would take a bit longer though, but be good exercise.
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Re: Milling Machine

Postby richard armstrong » December 17th, 2017, 1:15 pm

Rob Buckley wrote:'but be good exercise.



HA HA

funny
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Alan Cantwell 1131
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Re: Milling Machine

Postby Alan Cantwell 1131 » December 17th, 2017, 3:51 pm

Milling the toolpost seat is relatively easy, it’s clearance, there’s nothing precise about it, cutting cast iron with a hacksaw is not easy, it needs a milling machine, if you want to do the toolposts, it’s up to you, by the time you get to the last one, you should know what your doing, but it’s 8 cuts, as opposed to one,

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Re: Milling Machine

Postby paul hughes » December 17th, 2017, 4:11 pm

Richard, Alan is a skilled turner with many yours of experience, I too am a qualified turner with many years working on the shop floor on Myfords, colchester, herbert, centre turret and capsten lathes. I suggest you listen to the experts and you might learn something. When I worked on lathes it was not uncommon to need to use a tool that was over centre. We would grind the bottom off the tool, It was not unusual to find tools with 1/4" cut off the bottom along the shank. Another quick dodge was to put the tool in upside down and run the machine backwards.

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Re: Milling Machine

Postby richard armstrong » December 17th, 2017, 4:59 pm

Paul i am listen to Alan

Paul thanks for the ideas

i have taken the top slide off to check for parts that may interfere, by looks like this is the easiest way

just now need it milled back flush with tool holder for clearance, can anyone help with this?

also found the original locking handle will not clear the tool holder now they are full set up so i will at some point make a taller locking handle. i have just drawn a design, for now i will get a 7/16th bsf nut and washers ordered, and also order 7/16th tap and die? for later use,

paul i will try the reverse tool tip, as i am parting off 4mm brass rod but i am using index tools and bits for others

any you chaps close to Newark ?
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Alan Cantwell 1131
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Re: Milling Machine

Postby Alan Cantwell 1131 » December 17th, 2017, 6:09 pm

Neither of us are, I suggest you take it to a local engineers, and ask if they can help you, does Newark museum not have a basic machine shop?

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Rob Buckley
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Re: Milling Machine

Postby Rob Buckley » December 17th, 2017, 7:08 pm

These boys appear to be local and should sort you out

https://www.ecatoolfast.com/Products/metalworking-files
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richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 18th, 2017, 1:39 am

Alan Cantwell 1131 wrote:Neither of us are, I suggest you take it to a local engineers, and ask if they can help you, does Newark museum not have a basic machine shop?


thanks alan


i will investigate that
Richard "the rocket" Armstrong

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Alan Cantwell 1131
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Re: Milling Machine

Postby Alan Cantwell 1131 » December 18th, 2017, 7:27 am

Rob could always file it for you, filing cast iron, yes, best of luck with that!

richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 18th, 2017, 5:15 pm

all sorted

worked a treat, milled the top slide back 12mm, using a beautiful old Bridgeport mill something from the ww2 eara
Richard "the rocket" Armstrong

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Alan Cantwell 1131
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Re: Milling Machine

Postby Alan Cantwell 1131 » December 18th, 2017, 6:02 pm

Strange isn’t it? I did ours on a Bridgeport, glad you got sorted, I wonder how members get by without machine tools, who lent you the miller?

richard armstrong
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Re: Milling Machine

Postby richard armstrong » December 18th, 2017, 7:28 pm

company gave me access to the mill was ELMEC just down the road cost me 4 cans of beer

they also have a old Colchester lathe in there as well for the 50's
Richard "the rocket" Armstrong

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