New guy, old lathe, advice please!

All info relating to Viceroy machines - Lathes, sharpedge, drills etc...

Moderators: Martin, bradders, Steve, Mr Magoo, Andy B

Post Reply
Nigel R
Posts: 4
Joined: Thu 11 Oct , 2018 11:45 am
Hardware/Software: Viceroy TDS, a lifetime collection of tools and bits that will come in useful one day!
Location: Cornwall

New guy, old lathe, advice please!

Post by Nigel R » Tue 20 Nov , 2018 18:41 pm

Hi,
Just found this forum! I bought a Viceroy TDS? a while ago off Ebay.... I paid £100 for it as it's speed control system wasn't working (It had an analogue control system - can't remember the make now but it was full of relays etc. The motor was big DC thing with a V.Ref generator hung on the back).

I've fitted a 1hp 3 phase motor coupled to an Omron inverter/speed controller I'm driving via the original drive pulley so I can use both low and high ratios. Low speed is fine with lots of torque and I can run it from zero up to full motor speed of 1800rpm (I don't know what that relates to via the gearbox but a bit slow). High ratio is positively scary via the gearbox but there isn't much torque, although high rpm gives a great finish on aluminium using indexable carbide.

Enough of an intro! I do have some questions and I'm not a turner by trade but I do need the lathe to produce 2 jobs on a regular basis for a product I make and sell. I've done my best to set it up and I'm getting around .003 runout on the 3 jaw chuck - any opinion? I can turn to within .001" in steel and for the job in hand it's acceptable. However, the saddle is loose! I can grab it by the cross-slide and lift it. It's particularly evident when parting off, which tends to lift it unless I go v e r e y s l o w l y. This doesn't occur when the feed is selected but because it's a fiddly job I have to use it without the feed driving. There's a square headed screw which I thought may take up excess play but it can screw right into the side of the saddle until it disappears! I'm thinking that its missing some sort of insert?

I look forward to your comments guys - Thanks in advance :lol:

oldboyouttheback
Posts: 26
Joined: Wed 24 Aug , 2016 17:31 pm
Hardware/Software: Viceroy TDS 1. Viceroy 280 VS. Weiss WM45 mill. A big hammer, a screwdriver and an oil can
Location: East Sussex

Re: New guy, old lathe, advice please!

Post by oldboyouttheback » Thu 22 Nov , 2018 10:52 am

Hi Nigel. Welcome to the forum.

I will try and answer your questions as no one else has yet come foward.

Take great care when running at higher chuck speeds than original lathe was designed for. All chucks have a max running speed and you do not want to exeed that or even come close to it unless you know the history of the chuck. ( Exploding chucks are no ones friend )

Second, 0.003 run out from an old 3 jaw is not bad.

Third, there is nothing holding the front of saddle to the bed but gravity. You are partly correct about the screw in the front of saddle. It is the carriage lock screw, which should be used when facing or parting off to prevent movement of the carriage, and slackened off when not.
If the screw does not tighten then you do have a problem, either it has unscrewed completely from the lock plate, and if you are lucky it will still be there, or if not it may have gone missing, and you will have to make or find a replacement.

I do not understand why your carriage should lift when parting off. All forces from the cutting tool should be pushing down on the carriage.

Nigel R
Posts: 4
Joined: Thu 11 Oct , 2018 11:45 am
Hardware/Software: Viceroy TDS, a lifetime collection of tools and bits that will come in useful one day!
Location: Cornwall

Re: New guy, old lathe, advice please!

Post by Nigel R » Sat 24 Nov , 2018 23:07 pm

Thanks for your reply Oldboyouttheback, sorry for the delay in replying, I've not been visiting daily due to the lack of replies!

It looks like I can remove the front side of the saddle by removing the Allen screws? If so it should be easy to take a look. I also have play in the cross slide - I see there is a guy on Ebay who makes pattern nuts for many makes, and will 'do requests'.

Thanks for the advice on running at high speeds; I must say the chuck takes on a fearful persona!

You obviously know a bit about these?

Thanks again. :)

TDIPower
CNC Guru
CNC Guru
Posts: 448
Joined: Tue 29 Apr , 2014 18:38 pm
Hardware/Software: Starturn 5 (sort of running, I will get this done!)
Lathe cam designer V1.11
Quickturn 2D Design
FANUC offline and online programs.
Microrouter Pro NS V5 (microstep)
VR2 and VR5
Boxford VMC260
Techsoft 2d Design tools V1 > V2
ProDesktop
Fusion 360
Deskproto

Re: New guy, old lathe, advice please!

Post by TDIPower » Sun 25 Nov , 2018 14:11 pm

Hi, Ive had 'the guy' on ebay do a nut for my Boxford TUD. I sent him my old unit and the screw as he said he would try and make it fit as best as possible. It is evident that my screw is worn as the new nut shows less back lash at the section not used much. Worth doing to get it to a more usable state.

everything can come to bits, it was made at some point so worth doing to get it back up and running.

Pete

Nigel R
Posts: 4
Joined: Thu 11 Oct , 2018 11:45 am
Hardware/Software: Viceroy TDS, a lifetime collection of tools and bits that will come in useful one day!
Location: Cornwall

Re: New guy, old lathe, advice please!

Post by Nigel R » Sun 25 Nov , 2018 19:01 pm

Thanks Pete. Yes, I checked mine at full travel and there is not much play whereas there is an unacceptable amount in the normal use area as well.

Having decided to stick with my old Viceroy instead of going down the Warco route, I realise that I can spend a fair bit on sorting it and still be better off than if I forked out for a new lathe. I'll just have to work though it one bit at a time so it's not out of action!

Cheers.

oldboyouttheback
Posts: 26
Joined: Wed 24 Aug , 2016 17:31 pm
Hardware/Software: Viceroy TDS 1. Viceroy 280 VS. Weiss WM45 mill. A big hammer, a screwdriver and an oil can
Location: East Sussex

Re: New guy, old lathe, advice please!

Post by oldboyouttheback » Wed 28 Nov , 2018 18:10 pm

I have now had time to warm up the dormant grey matter and having gone into memory mode I now remember that the carriage lock screw has a tapered end which pushes a locking pin up against the bottom of the bedway. Mine was missing the pin when I got it and had to make one. IIRC I made one from a piece of silver steel rod, I think about 1/4'' dia and rounded at the end which the tapered screw abutts.
As I converted mine to ball screws and stepper motor control a few years ago, I do have a spare crosslide screw and nut. In fact I have two, as I brought a NOS one being advertised on ebay. The screws are identical but I think the nut has a slightly different mounting .
If you are interested let me know and I will look them out.

John

Nigel R
Posts: 4
Joined: Thu 11 Oct , 2018 11:45 am
Hardware/Software: Viceroy TDS, a lifetime collection of tools and bits that will come in useful one day!
Location: Cornwall

Re: New guy, old lathe, advice please!

Post by Nigel R » Sat 08 Dec , 2018 23:34 pm

Mmm yes please John! Sorry for the delayed reply, but I would be interested so please PM me with details of price.

Thanks

Nigel

Post Reply