Author Topic: Edgwick Lathe  (Read 9692 times)

Offline mattinker

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Re: Edgwick Lathe
« Reply #50 on: January 25, 2018, 11:43:33 AM »
10mm That's enormous, I had 0.6mm at worst!

are the test bars being held by the full length of the Jaw?

It sounds like your a couple of decimal points out!

Cheers, Matthew

Offline PekkaNF

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Re: Edgwick Lathe
« Reply #51 on: January 25, 2018, 01:07:31 PM »
Reminds me of my "Clumsy bastard" error: I was schoked to find that my finishing touch of balancing fixture shaft increased the excentricity 5 fold, then I noticed that I used 0,002 mm/div indicator insted of the 0,01 mm/div indicator that I had used originally. Phew!

Pekka

Offline HalifaxHerbert

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Re: Edgwick Lathe
« Reply #52 on: January 26, 2018, 04:42:52 AM »
hi AWEMAWSON

The jaws are in their correct positions and have also been rotated .

Offline HalifaxHerbert

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Re: Edgwick Lathe
« Reply #53 on: January 26, 2018, 04:50:27 AM »
Gentlemen,

Please accept my sincere apologies.

0.010" run out and +/- 0.0025 run out.

Typographical error. :doh:

Offline awemawson

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Re: Edgwick Lathe
« Reply #54 on: January 26, 2018, 06:07:44 AM »
... that's better  :clap: :clap: :clap:
Andrew Mawson
East Sussex

Offline PekkaNF

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Re: Edgwick Lathe
« Reply #55 on: January 26, 2018, 07:55:05 AM »
Gentlemen,

Please accept my sincere apologies.

0.010" run out and +/- 0.0025 run out.

Typographical error. :doh:

I thought that you were palying us. 0.25 mm TIR is on the large side, but it's still usable and if the headstock bearings are fine you can produce good work, just takes a little forethough.

Pekka

Offline mattinker

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Re: Edgwick Lathe
« Reply #56 on: January 27, 2018, 01:41:34 AM »
Gentlemen,

Please accept my sincere apologies.

0.010" run out and +/- 0.0025 run out.

Typographical error. :doh:

Sound to me like it would be worth trying grinding the jaws. If you go gently, it's hard to make them any worse!

Regards, Matthew