Arc Euro boring and facing head

[Anonymous]

Posted by JasonB on 24/09/2015 20:50:27:

I know a man with one for sale if you are feeling flush though only on a MT3

Thanks, but even I don't really need a third boring head. And the only MT3 spindle I've got is the tailstock on the lathe, which wouldn't work too well.

Andrew

[John HinkleyParticipant @johnhinkley26699]

All this chat about a boring/facing tool has reawakened my enthusiasm for making one to my own design, once I've finished fitting the DRO and scales to my new mill. In the meantime, I wouldn't mind having a look at how others have approached the concept. Notably, I've looked at Graham Howe's site (thanks for the link Graeme W) and his seems to be around the right size. If anybody has a copy of his plans, then I'd appreciate a pm and a copy of them – he says they are available on his web site but my email to him a while ago remains unanswered.

John

[AjohnwParticipant @ajohnw51620]

My email remains unanswered as well so snap.

The feed for facing on the ones I have seen are all based around a pin striking a starred wheel of some kind. I'd guess there are other ways of doing it so wonder most about that aspect.

John

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[Gordon Smith 1Participant @gordonsmith1]

You could also look at Graham Meeks design in his Workshop Projects book.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by John W1 on 26/09/2015 16:27:41:

The feed for facing on the ones I have seen are all based around a pin striking a starred wheel of some kind. I'd guess there are other ways of doing it so wonder most about that aspect.

.

?

… except for the one you saw in MEW, and were asking about earlier in this thread.

MichaelG.

[John HinkleyParticipant @johnhinkley26699]

John W1 – Yes, that's the drive mechanism around which my design is also based. I had hoped that someone on here would have the plans and be prepared to pass them on. Still, early days, yet, I guess.

Gordon Smith 1 – I have Graham Meek's book and was initially was going to make his version, but it is a bit small for my needs and the gears are minute. I'm not up to making the required single-point cutter so my design features MOD 0.6 gears made using a commercially available involute cutter.

John

[AjohnwParticipant @ajohnw51620]

My recollection of the MEW one is that it was a minor variation on a pin striking a star wheel. I don't think I was too happy with the choice of material in places.

Actually I wasn't asking about it but suggesting Neil might post it as a freebee that might be of interest to others but it seems that it isn't old enough. I thought i had a copy of the edition that it was in but it seems to have gone awol. It took the magazine for a while after it came out but didn't find much of interest so stopped buying it. The things I generally find of interest in a mag are the unusual tools not common ones.

In terms of tooling I might make I have interest in a toolpost grinder, tool grinder and finishing a rotary table I started some time ago. Stopped because a small home made one came with my Dore Westbury. Also the alignment of a Chinese lathe I was making it on. My Boxford is more than capable of doing the work. The home made one needed a little bit of extra work to make it work well but when a strap fitted to it was removed the casting cracked. It still works well enough but I should finish the other one. My dividing head is home made too and too small really. Another job maybe at some point but I might just fit a bigger worn wheel to it.

Boring head I have. It's more than adequate, home made and probably on it's 3rd owner at least. I can get it to face on the mill if needed.

My immediate aims are to replace the front bearing on my Boxford as I suspect it will cure a minor niggle I have with it. Finish off sorting out a Pultra and also starting on a Wabeco 4000 that I feel should turn a little better than it currently does. I've already bought a bigger rack feed handle for it and a spring guard for the lead screw. Plus a replacement tool post for it. I can get a decent parting off tool on it now.

At least my tidy up and sort out is showing slight signs of finishing. I'm absolutely gob smacked how many reamers I have now they are all together. I've nearly found everything I thought I had now too. Just a few things to go.

John

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[Michael GilliganParticipant @michaelgilligan61133]

Posted by John W1 on 26/09/2015 23:52:03:

Actually I wasn't asking about it …

.

Then I regret wasting so much of my time trying to help.

MichaelG.

[AjohnwParticipant @ajohnw51620]

I really don't see why Michael as just like me trying to help others your posts might as well.

One of your posts did help anyway – my existing head. A link you posted showing how I could face with it on my miller. My brain was stuck in a different way of mounting the see saw on it.

Graham Howe has sent me a copy of his design as well mentioning a good point. Think about the headroom available on the miller. There is plenty available on a Dore Westbury even without the extreme column some fit but will need to check.

It would be interesting to see the design in the book that was mentioned. My problem in that area is that I would be buying the book for just one design. The rest would be of little if any interest. That's just me being mean really but any design I see is likely to be modified for my own use anyway.

John

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[John HinkleyParticipant @johnhinkley26699]

Received a copy of his design from Graham Howe today, too. Not yet had a chance to look at it in great detail. May have a perusal while waiting for the supermoon tonight.

John

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