Author Topic: Raglan mill help  (Read 3992 times)

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #30 on: February 16, 2019, 09:09:10 PM »
OK   for 5/8-8 regardless of class I get a 1/2" tap drill     12.7mm   

https://www.engineersedge.com/hardware/internal_acme_thread_13361.htm

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline scc

  • Full Member
  • ****
  • Posts: 595
  • Lancashire, UK
Re: Raglan mill help
« Reply #31 on: February 16, 2019, 09:17:49 PM »
Thanks for all the help Dave, It'll be a day or three before I get in the shed again. That Clausing looks a handy machine.

Terry

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #32 on: February 16, 2019, 09:19:53 PM »
thanks Terry....It is...and this one came from a dear friend.     Ray Hasbrouck.

He bought it new in 69....and it's made a lot of parts....and is in need of some TLC sooner or later.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #33 on: February 16, 2019, 09:30:37 PM »
My machine has a factory riser, so it's a bit taller than the one in the article.   Comes in handy.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline scc

  • Full Member
  • ****
  • Posts: 595
  • Lancashire, UK
Re: Raglan mill help
« Reply #34 on: February 22, 2019, 09:20:33 PM »
Time for a bit more progress.  I think this machine has had a rough time before I found it, the gib strip on the rising knee seems to have broken and had a welded repair. I shall leave well alone because it all works well on Z axis.
One of the leadscrew nuts is brass, the other bronze :ShakeHead:  I have bored them out and inserted new brass centres ( 0.002" gap and loctite 648....Cheers Dave :ThumbsUp:) I think I shall still pin them though.    I started to tap the first bush while it was still in the 4 jaw but could not get enough grip so have decided to tap them "assembled"...easier to hold.
Leaving loctite to set I started on the Y axis screw.  The old eyes were getting tired grinding the acme thread tool so stopped until tomorrow.

Terry

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #35 on: February 22, 2019, 11:49:27 PM »
The picture Below is a Ultra precision drum lathe

It puts a optical finish on a copper plated steel drum weighing up to 3000 kg

the headstock has a 16 HP frameless electric motor

The stator of that motor is held in place with Loctite 648.

Considering I was the Lead Engineer on the project.....

I think the Raglan will be fine......but it's your "rice bowl"..... 8)

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13756
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: Raglan mill help
« Reply #36 on: February 23, 2019, 12:52:17 AM »
Interesting lathe Dave  :o

Bill

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #37 on: February 23, 2019, 05:58:24 AM »
Terry   do make sure you tap drilled to 12.7mm and not 12.5 like you were going to.   Thats a lot for a tap to deal with.
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline scc

  • Full Member
  • ****
  • Posts: 595
  • Lancashire, UK
Re: Raglan mill help
« Reply #38 on: February 23, 2019, 09:09:32 AM »
Dave,  Tapping drill was 1/2" as per your suggestion earlier in the thread.     That looks some machine.....no need to pin it then :Lol:
Thanks         Terry

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #39 on: February 23, 2019, 01:29:41 PM »
 Nuts should withstand 150 to300 ft pounds of torque....
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #40 on: February 23, 2019, 07:03:42 PM »
How you making out Terry?
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline scc

  • Full Member
  • ****
  • Posts: 595
  • Lancashire, UK
Re: Raglan mill help
« Reply #41 on: February 24, 2019, 11:10:22 AM »
Dave, I've ground my cutting tool and finished the thread on the short leadscrew, just the handle end to machine so quite happy with that. Left hand nut not yet tapped so that is next job before last few thou on screw to get a good fit. The long leadscrew is more of a problem...I have finished it's RH acme nut having forgotten that the screw looked like a SQUARE thread...it is :facepalm2:  It seems my only option is to remake the nut. I have cut an internal square thread before on the Burrell brake assy. so onwards and upwards as they say :cussing:
I obtained the Raglan many years ago for 60 from a reclamation yard!! so it owes me nowt.    Now and again I think of a new one, maybe SiegX2.7L...A bit fed up at the moment.    Thanks for your help and interest :cheers:

Terry

Offline Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 12833
  • Hampshire, england.
Re: Raglan mill help
« Reply #42 on: February 24, 2019, 11:24:37 AM »
Mike I seem to recall JasonB has a little used one of those to dispose of  :-X

Jo
Enjoyment is more important than achievement.

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10405
  • Central Massachusetts, USA
Re: Raglan mill help
« Reply #43 on: February 24, 2019, 01:18:12 PM »
 :I will second Jo's comment, and as a back up, ill help with the new long screw if you need someone to turn something for ya.    Us engine nuts gotta stick together :cheers:
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline scc

  • Full Member
  • ****
  • Posts: 595
  • Lancashire, UK
Re: Raglan mill help
« Reply #44 on: February 24, 2019, 01:25:01 PM »
Cheers, Jo and Dave,            I do appreciate your offer. It's a pity about the Atlantic :shrug:   For the present I shall pursue plan c and modify the RH nut.     Terry   Thanks again