Linley Jig Bore

[lakeside]

I bought this little guy about 4 years ago. I paid $200 for it. Vintage 1968 machine #4167 it was used for one job and sat in the corner.I had it behind my house and cover it in grease.Now it in the basement and the grease is gone. This machine is so clean it can still hold tenths. That I think I'm just going to keep it the way that it is.The motor is a 220 3 phase should I get a phase converter or a new motor? or should I do a conversion to sometype of cnc. What do you think?

[Geof]

I think you should keep it in its original condition for nostalgic reasons. Machines of that nature and older are what formed the foundation for modern manufacturing. I often wish I could have kept some of the old machines I started my business with but a sixteen feet long turret lathe weighing 6 tons was a bit unwieldy to stick at the back of the garage.

Get a phase convertor.

[lakeside]

Originally Posted by Geof I think you should keep it in its original condition for nostalgic reasons. Machines of that nature and older are what formed the foundation for modern manufacturing. Get a phase convertor.

That the way I leaning. This machine is like museum quality is there any real deference in phase converters

[tobyaxis]

Very Very Very Nice Mike. What Geof said, keep it the way it is and get a Phase Converter. You don't see those beautiful machines anymore. What type of tool holders does she take? I may have someone you can talk to.

I can't get over how clean it is as I am droolling on the key board.

[lakeside]

In need the following collet
Modified collets and nosepiece of the Mk. 1A. Based on the Schaublin ESX design, these collets were developed with the express intention of providing a superior grip on the shanks of cutting tools.
An important part of the new assembly was a freely-floating compensating washer which fitted between the collet and nose cap; this was intended to eliminate possible inaccuracies between the locknut thread and its inner surface which clamped against the collet.-info from Tony at http://www.lathes.co.uk/linley/page3.html

[70cyclone]

I would use an inverter(VFD)...then you can vary the spindle speed electronicly. Most VFDs I have ever seen can be run single phase with no problems and used ones are cheap on ebay.


edit: tell me what hp it is and I may have a VFD that would work for ya

[lakeside]

Originally Posted by 70cyclone I would use an inverter(VFD)...edit: tell me what hp it is and I may have a VFD that would work for ya

interesting Idea so the VFD would replace the phase converter. I can't find a tag on motor but 1hp max,I would think tell me more....I did do a search and read baldor site for some info on VFD but I real know nothing about VFD

[70cyclone]

well a VFD(variable frequency drive) is what most comercial CNC machines use to control spindle speed.
most can be run single phase with a reduction in max output. if you find a 5hp drive you can program its current limit to run a 1hp without damage to the motor

couple of ways to use them...
1. just program it to always run 60hz and just have forward/stop/reverse hooked up. then it just runs at whatever the motor is wound for. (ie 1750rpm)

2. set it up with a pot and be able to vary the speed from 0 to whatever max out is for the drive(ie 240hz) this is nice because on drill presses and such you don't have to change the belt for different spindle speeds.


I prefer Yaskawa vector style drives for servos and VFDs and the build alot of other brands as well, like Omron, EMS, and others. I also like them because my Milltronics mill has them and I know the abuse they can take.

[70cyclone]

oh and you can get used 5hp or less VFDs on ebay for less than $100 really easy.

this style is what I always try to find and have great luck with...
Yaskawa V7 drives

[lakeside]

Thanks for the info I found this one new for $260 it just the basic http://www.deselectric.com/inverters. The Yaskawa v7 drive might be a bit over kill on this one

[70cyclone]

Originally Posted by lakeside Thanks for the info I found this one new for $260 it just the basic http://www.deselectric.com/inverters. The Yaskawa v7 drive might be a bit over kill on this one

not a bad deal...looks just like a yaskawa too...

take a look at this...Mitsubishi drive on ebay

[lakeside]

I looked at the one on ebay output is only 5 amps that sounds a little on the low side. I'm just guess but 20 amps sound better. If I put the motor under heavy load would I not need the amps?