Hi from ireland

Hi

I'm new to the forum with a new to me Boxford AUD lathe which I'm currently getting to grips with.

I have had a Boxford lathe before ( BUD 11 ), but this one seems different in some ways which is a little confusing.

Can anyone help with cutting tool sizing as I seem to remember using 1/2" shank tools before and have just bought a set of tools with indexable tips but they are too tall when in the 4 way tool post with no packing.

What does everyone else use ?

TIA

Nigel

Hello Nigel,

Welcome to the forum.

1/2" tools are bit large for most 4" lathes. Can you measure the distance between the base of the toolpost and a centre in the spindle.

Neil

Hi Nigel, Welcome. I have an AUD. I have a modified BXA tool holder on my 4-1/2" so that I can use tools up to 5/8".but 1/2" tools work just fine. Check your tool holder in case the previous owner put a spacer plate under it to use smaller tools such as 3/8".

 EDIT  I am working on some riser blocks at the minute to raise it up to 5".

Plenty of help on here for you. Just do a search and if nothing helps just ask.

regards

Edited By Oldiron on 04/05/2018 19:08:04

Hi Neil

From the base of the tool post to the tailstock center is only 10.5mm which seems very small for a 4 1/2" lathe and I'm sure the tools I had on the BUD I had were 1/2" with brazed on tips.

Nigel

Hi oldiron

There are no spacers under the 4 way tool post, just the indexing plate, however this lathe has a "T" slotted cross slide which wasn't fitted to my last machine, just wondering if this is thicker than the std cross slide ?

Nigel

Hi Nigel. My AUD is fitted with a slotted cross slide and it is 1" thick. I have 3-5/8" from bottom of cross slide to the centre of the chuck & 1" clearance from the top of the compound to centre of chuck. I have always used 1/2" tool bits on all 3 of my previous Boxford's. Never had any problem with them.

regards

Edited By Oldiron on 04/05/2018 22:13:37

Thanks Oldiron

I'l check those dimensions tomorrow and let you know what mine is like and see if I can get a pic of the tools I have in relation to chuck center too.

I do remember that the cross slide is 1" thick as it was one thing I did check earlier.

Nigel

Pics of the measurements and tool height at the tailstock center.

Compound slide to chuck center

Cross slide to chuck center

Pic of lathe tool 1/2" shank, plus the amount of tip above the tool body.

I have many indexable tool holders but none of them have tips that are taller than the body. Its usual for them to be flush with the top. Has someone put the wrong tip on the tool holder.? How much is your tip above centre?

regards

The tools are new, just delivered from Proops, but now you mention it I seem to remember my old stuff with indexable tips being level with the top of the tool shank.

The tool tip is approx. 1.7mm over center,but that is since I removed the fibre washer from under the tool post, with the fibre washer ( behind the tool in the last pic ) replaced the tip is 3.5mm over center height.

If the top of the tip were level with the tool shank they would be perfect, pic to follow.

Edited By Nigel Barlow on 05/05/2018 12:14:49

Two different views

Please excuse the dirt & swarf I'm still cleaning down since its arrival