Thread cutting on Myford 254

Thread cutting on Myford 254

This topic has 4 replies, 3 voices, and was last updated 19 April 2013 at 19:11 by ray jones 1.

Viewing 5 posts - 1 through 5 (of 5 total)

Author

Posts
18 April 2013 at 12:01 #117243
ray jones 1
Participant
@rayjones1
hi, I would appreciate your advice.

My Myford 254 is imperial . I needed to to cut 12 tpi.

To my surprise ,12 TPI is not listed on the thread cutting chart

Both 13TPI and 14TPI are listed, but not 12TPI,

The lathe is set up with original thread drive gears

see photo of thread setting index

any ideas please,.

thank you
Advert

18 April 2013 at 12:01 #12120
ray jones 1
Participant
@rayjones1
18 April 2013 at 13:26 #117250
John Stevenson 1
Participant
@johnstevenson1
Ray,

You should have 40 driving an 80 with a 60 idler.

Swap the 60 and 80 over so it's a 40 driving a 60 with 80 in the middle as idler.

Then select B 5 on the gearbox, that will give you 12 tpi.

[edit] C 5 will give you 24, another useful one that's missing.

Edited By John Stevenson on 18/04/2013 13:29:45
18 April 2013 at 17:45 #117263
Ian Hewson
Participant
@ianhewson99641
Hi

Myfords handbook for the lathe gives the gears for threads from 4 to 42 per inch.

PM me if you would like a copy.

Ian
19 April 2013 at 19:11 #117348
ray jones 1
Participant
@rayjones1
Thank you for the constructive replies, very much appreciated.
Author

Posts

Viewing 5 posts - 1 through 5 (of 5 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- Surface grinders choice
  Started by: greenhills in: Workshop Tools and Tooling
- 9
- 9
- 26 June 2026 at 23:20
  Mark Rand
- Solar panel
  Started by: duncan webster 1 in: Electronics in the Workshop
- 11
- 19
- 26 June 2026 at 23:03
  Mark Rand
- Myford VMC Spindle Advice Please. 1 2
  Started by: Nigel Graham 2 in: Manual machine tools
- 10
- 31
- 26 June 2026 at 22:30
  Nigel Graham 2
- Traction Engine Metal Colours
  Started by: Dr_GMJN in: General Questions
- 1
- 1
- 26 June 2026 at 21:11
  Dr_GMJN
- Identifying the pitch of threading inserts
  Started by: Bill Phinn in: Workshop Tools and Tooling
- 5
- 11
- 26 June 2026 at 20:55
  JasonB
- What Did You Do Today 2026 1 2 … 4 5
  Started by: JasonB in: The Tea Room
- 35
- 116
- 26 June 2026 at 20:06
  Wade Beatty
- Using VFDs on old motors
  Started by: Andrew Skinner in: Electronics in the Workshop
- 6
- 10
- 26 June 2026 at 19:59
  Robert Atkinson 2
- Introducing myself
  Started by: anoddcog in: Introduce Yourself – New members start here!
- 4
- 4
- 26 June 2026 at 18:21
  JasonB
- Running 380V 3-phase motor on 230V 1-phase 1 2
  Started by: jimalm in: Electronics in the Workshop
- 16
- 45
- 26 June 2026 at 17:51
  Robert Atkinson 2
- Oiling Lathe Ways
  Started by: Blue Heeler in: Beginners questions
- 9
- 10
- 26 June 2026 at 17:41
  David George 1
- 3D Printing in the Home Workshop
  Started by: Colin Heseltine in: 3D Printers and 3D Printing
- 8
- 11
- 26 June 2026 at 17:11
  David George 1
- EmcoF1
  Started by: troy h in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 2
- 3
- 26 June 2026 at 16:52
  troy h
- Big Blue Chips
  Started by: JasonB in: Workshop Tools and Tooling
- 2
- 2
- 26 June 2026 at 16:39
  Baz
- Testing Single Point Thread Fitment
  Started by: berwick in: Beginners questions
- 16
- 25
- 26 June 2026 at 16:36
  Steve101
- Old Magazines – Countrymans Steam Suffolk Dredging Tractor
  Started by: Tris Summers in: The Tea Room
- 2
- 2
- 26 June 2026 at 15:42
  anoddcog
- Rob Roy Build
  Started by: Dalboy in: Locomotives
- 5
- 18
- 26 June 2026 at 13:16
  Kevan Shaw
- LINKS FOR WORKSHOP AND MODEL ENGINEERING STLs AND OTHER FILES
  Started by: Neil Wyatt in: 3D Printers and 3D Printing
- 6
- 7
- 26 June 2026 at 13:08
  Pete Rimmer
- Hot radiators in summer
  Started by: Gary Wooding in: The Tea Room
- 13
- 20
- 26 June 2026 at 11:47
  JasonB
- Help please! Workshop clearance
  Started by: ksw in: General Questions
- 8
- 18
- 26 June 2026 at 10:31
  Howard Lewis
- Letters and Parcels Box
  Started by: Michael Gilligan in: The Tea Room
- 9
- 14
- 26 June 2026 at 08:04
  Michael Gilligan
- Emco Compact 5 milling table restoration
  Started by: rikt in: Manual machine tools
- 6
- 12
- 25 June 2026 at 19:36
  Pete
- Rapidor 3XM
  Started by: homecat88 in: Introduce Yourself – New members start here!
- 3
- 10
- 25 June 2026 at 18:58
  Clive Foster
- Hot milk variations
  Started by: Gary Wooding in: The Tea Room
- 12
- 19
- 25 June 2026 at 15:31
  Oily Rag
- ML7 – Zeroing the Topslide? 1 2
  Started by: Dr_GMJN in: Workshop Techniques
- 22
- 38
- 25 June 2026 at 14:33
  ega
- How Good Are 3D Printers? 1 2
  Started by: Neil Wyatt in: 3D Printers and 3D Printing
- 15
- 32
- 25 June 2026 at 11:22
  Neil Wyatt

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

July 2026

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies