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Close-up steady for Hardinge
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Topic: Close-up steady for Hardinge (Read 7904 times)
BillTodd
Hero Member
Posts: 1160
Country:
Colchester Essex (where the lathes were made)
Close-up steady for Hardinge
«
on:
March 07, 2012, 12:46:48 PM »
I've been playing around cutting some small threads and found I needed a steady rest:
It works better than I expected
Handy when single pointing an M0.7 x 0.175 screw thread
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Bill
Rob.Wilson
Guest
Re: Close-up steady for Hardinge
«
Reply #1 on:
March 07, 2012, 01:39:17 PM »
what you playing at Bill
Now that small
Good idea having a steady fixed to the head stock
,,,,,,,, dose the part run on the steel finger and brass arm ?
Rob
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DaveH
Hero Member
Posts: 1413
Country:
Kempton Park, South Africa
Re: Close-up steady for Hardinge
«
Reply #2 on:
March 07, 2012, 01:56:59 PM »
Bill,
Wow
that is tiny
DaveH
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(Ex Leicester, Thurmaston, Ashby De La Zouch.)
BillTodd
Hero Member
Posts: 1160
Country:
Colchester Essex (where the lathes were made)
Re: Close-up steady for Hardinge
«
Reply #3 on:
March 07, 2012, 02:07:02 PM »
Quote
dose the part run on the steel finger and brass arm
The top finger (actually chrome plated brass) slides back in an attempt to make the job visible under the rest (it's almost impossible to see what one's doing anyway) . It forms a 90° corner with the main vertical finger.
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Bill
loply
Sr. Member
Posts: 260
Re: Close-up steady for Hardinge
«
Reply #4 on:
March 07, 2012, 07:05:22 PM »
Would it not be easier to use a die?
Pretty impressed that you managed to single point it.
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PekkaNF
Hero Member
Posts: 2523
Country:
Re: Close-up steady for Hardinge
«
Reply #5 on:
March 08, 2012, 03:55:08 AM »
Really like design and the idea of placing it inclined position on the headstoc. Looks soooo much cooler than my contraptions.
What lead to this? Dies hard to find this size? Did die cruble the screw or did you look for a chalenge?
PekkaNF
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BillTodd
Hero Member
Posts: 1160
Country:
Colchester Essex (where the lathes were made)
Re: Close-up steady for Hardinge
«
Reply #6 on:
March 08, 2012, 06:00:14 AM »
It was just curiosity really; I have been modifying the lathe,
adding a soft start for the dog-clutch etc
. so I can cut a two start 12tpi (6tpi lead) for a milling cutter arbour ( which is at the upper limit of the pitch due to the stress on the dog-clutch/gears ) and, inspired by a thread on the PM board, I simply wondered what was the smallest thread I could single point on the Hardinge. (The machine is so good at single pointing, I find it overall faster/easier than a die for most parts)
It is also an interesting exercise in tool sharpening, requiring a microscope to check the edges and shape. I've just ordered some super fine lapidary abrasive discs to grind small carbide tools with the aim to do a M0.3
Bill
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Bill
philf
Hero Member
Posts: 1127
Country:
Re: Close-up steady for Hardinge
«
Reply #7 on:
March 08, 2012, 08:24:27 AM »
Brilliant stuff Bill.
Are you going to single point a nut to match?
How many passes did it take?
I'm just going in the workshop to see how I could fit a similar steady to my lathe.
Cheers.
Phil.
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Phil Fern
Location: Marple, Cheshire
arnoldb
Hero Member
Posts: 515
Country:
Windhoek, Namibia
Re: Close-up steady for Hardinge
«
Reply #8 on:
March 08, 2012, 10:55:36 AM »
Very nicely done Bill
I'm also getting things ready to single-point smaller-than-M2 threads; Somehow M2 is getting to be far too big for some projects I have in mind, and the pricing on small metric dies are just insane.
, Arnold
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doubleboost
Madmodder Committee
Hero Member
Posts: 1619
Country:
Newcastle Upon Tyne
Re: Close-up steady for Hardinge
«
Reply #9 on:
March 08, 2012, 05:11:15 PM »
Amazing stuff Bill
I did screw cut some 3 mill (now i have a die)
Be best if i keep to the bigger stuff
It is nice to see it done though
John
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http://www.youtube.com/user/doubleboost
steamer
Jr. Member
Posts: 86
Country:
Re: Close-up steady for Hardinge
«
Reply #10 on:
June 05, 2012, 01:40:59 PM »
Oh man! Now you made have to go and add another project to the list!
NICE!
Dave
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"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!
krv3000
Hero Member
Posts: 2188
Country:
Re: Close-up steady for Hardinge
«
Reply #11 on:
June 05, 2012, 04:34:53 PM »
naw that is good
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Close-up steady for Hardinge