Tangential lathe tool holder

[VicParticipant @vic]

Hi Clive,

I don't have a drawing as I milled it as I went along! As for the steel, I have no idea. It was made from bench (gym) machine weights that were going for scrap. Definitely steel though of some description. Sorry I can't be of more help.

[Clive HartlandParticipant @clivehartland94829]

Thanks Vic, I will see what I can find under the bench.

Clive

[Thor 🇳🇴Participant @thor]

Hi Clive,

don't know which size HSS toolbit you intend to use, here is a drawing of one using 1/8" square bits, may be you'll find it helpful.

Thor

[Clive HartlandParticipant @clivehartland94829]

Thank you Thor, that will give me something to start from, I do have memory of using this type tool many years ago on a machining course in the army.

Clive

[ChrisHParticipant @chrish]

Vic, very nice tool, looks the business! Just one query, was there a reason you made the bit where the HS tool bit is held thicker than the rest, or did it just come out like that?

Chris

[VicParticipant @vic]

Only because it ends up thinner at the end where it's milled at 12°. It can be the same thickness all the way through though if you like. I started with quite a large lump of scrap steel so I needed to thin it a bit for the toolpost. The reason for the deep step was to keep the toolbit clear of swarf, it also help to see what's happening at the cutting edge. Really though it's just a matter of making it to fit your Lathe. Within reason though bigger is better if it improves rigidity. If I get a minute I'll take some more pictures at different angles if it helps. It's not quite as clean now though as it's had a lot of use, it's my most used tool!

Edited By Vic on 29/08/2014 21:36:22

[ChrisHParticipant @chrish]

Good enough reason Vic, hadn't thought of that angle but it makes sense. Yes please, more pictures if you can please, a picture is worth a thousand words and all that!

Chris

[john kennedy 1Participant @johnkennedy1]

I knew I'd seen that tool before

http://www.homemodelenginemachinist.com/showthread.php?t=22458&highlight=tangential

Very nicely made.

[Steve WithnellParticipant @stevewithnell34426]

Can someone post a pic of this thing "at work" – public declaration of ignorance – I don't know how it works!

Steve

[NJHParticipant @njh]

Hi Steve

HERE is a good example. They are very effective and, with the exception of special form tools , will cope with most turning tasks. In addition sharpening and adjustment is very simple.

Norman

[Gary WoodingParticipant @garywooding25363]

I've made several holders for 1/4" tool bits based on Michael Cox's MEW article, for me and some friends. I designed a slightly different sharpening jig to those shown so far; it works just fine and needs a smaller chunk of metal.

Here are a few pictures, plus the design of the jig.

[VicParticipant @vic]

As requested, a few more pics.

[VicParticipant @vic]

Sharpening jig. The small black one comes with the commercial tool. I made the alloy one as being a bit bigger I find it easier to handle and it's slotted to the table on my belt sander for consistency.

[Steve WithnellParticipant @stevewithnell34426]

Posted by NJH on 30/08/2014 10:17:57:

Hi Steve

HERE is a good example. They are very effective and, with the exception of special form tools , will cope with most turning tasks. In addition sharpening and adjustment is very simple.

Norman

Thanks Norman – excellent video. Now I need to make time to go and make one

Steve

[Author]

Posts