That's the exact tool holder post we had in our lathes in high school ! they were so easy to adjust the cutter any way you wanted and really fast ! Thanks for the memories !

The concave washer is such a beautiful part. And I wasn't prepared for the matching convex support to be hand scraped. This lantern toolpost is beautiful. You did an excellent job, as usual.

@Thesheddweller

8 ай бұрын

Hi, thanks, I do try...😊 cheers

Very good work Paul. You achieve things that I wouldn’t know even where to start. Thanks for the video.

@Thesheddweller

8 ай бұрын

Hi, I sometimes have starting problems too. 😁

Nice job. We shared this video on our homemade tools forum this week 😎

Lovely to see someone going back to old style tools, so much easier to use than replacement tips and usually a better finish.they weren't so daft those old timers .Thank you for a very interesting edition.

@Thesheddweller

8 ай бұрын

Hi, yes you're right, the only reason things changed, was manufacturing speed. Speed became the overriding factor in modern manufacturing. Thing is, in a little workshop like mine speed isn't important but, cost is. cheers

Fantastic content Paul!! "Thanks"

Nice work. Watched quite a few of your videos now and I do admire your skill.

That wet tissue method is rather good, I’m going to have to give it a try.

Very good video and excellent work

@Thesheddweller

8 ай бұрын

Hi, thank you, I'm glad you enjoyed the video.

Lovely job mate. Well done

@Thesheddweller

8 ай бұрын

Hi, thank you. cheers.

That scollop you made looks beautiful. Congratulations.

@Thesheddweller

8 ай бұрын

Hi, thanks, cheers.

If you add a couple of pins, one in each end of the half moon section it will not fall out. Check the hardinge variant of these

I never made concave things. Maybe I should give it a go one day. Looks like fun to do.

@Thesheddweller

8 ай бұрын

Hi Michel. It was an interesting job and being an intermittent cut the swarf stings if it hits bare flesh. My next project is the steady rest and hopefully after that a following steady. cheers.

Very nice tool! I enjoy your narration almost as much as your machining!

@Dave.Wilson

8 ай бұрын

And the music, not!! 😊

You just solved what I needed to know to make a tool post for my south bend 10 L. Thank you . .

@Thesheddweller

8 ай бұрын

you're very welcome. regards

Wonderful to see you in the shop Mr. Hopewell. Excellent tool making and machining.

@Thesheddweller

8 ай бұрын

Hi, thanks

nice bild mr hopewell. cheers ben.

@Thesheddweller

8 ай бұрын

Hi, glad you enjoyed the video. cheers

Very nice !!

@Thesheddweller

8 ай бұрын

Hi, thank you.

i literally just got done making one for my lathe . wish i would of watched this first

@Thesheddweller

8 ай бұрын

Hi, thanks for watching, I'm sure yours is perfectly adequate for your requirements. cheers

Great project, and lovely work all around. The first lathe I learned on had this type of tool holder, and it was very nice forking into tight areas, and simple house economical high speed steel cutters. I did like it better than the turret style which followed it after as it was so easy to get the cutter on centre rather than shimming. Got to love those sticky pins, I do see a lot of them on the amazing third world machines, fascinating. Enjoyed very much, cheers!

@Thesheddweller

8 ай бұрын

Hi, I've used all types of cutting processes and tools, from high speed steel to ceramic. High speed steel is still king for me, mind you ceramic gets close. These two techniques are different ends of the spectrum one is slow and will take off quite a bit of material, if it's asked. The other works at ballistic speeds and will only remove thin layers, but the finish is supreme. As for sticky pins they are still used in many machining environments where the operator is in charge of the set up, mostly on castings or fabricated parts. Regards.

Absolutely superb. A tour de force of your skill. The concave surface was especially good. The milling machine is truly a machine of applied geometry. I have a Harrison booklet on milling that shows the calculations etc for generating parabolics on the mill, with an application shown for telescope mirror manufacture. I have to say that I really need to find these boot sales/autojumbles/garage sales where you can buy milling cutters, lathe tools, metrology gear etc. Loved the film. And I enjoyed the calcs. I do like a calculation.

@Thesheddweller

8 ай бұрын

Hi thanks, there are geometric calculations for machining parabolic curves and spherical arcs on many machines. I used to cut spherical bearing bores for self aligning bearings on a twin ram boring machine, that was fun. The Staffordshire showground and the Newark Showground both hold a few auto jumbles every year they are a good source of used engineering tools .. you just have to take a van and lots of cash with you whenever you go. cheers

@carlwilson1772

8 ай бұрын

@@Thesheddweller Excellent stuff. The thing I like best about engineering is seeing calculations become real things. My problem with the boot sales etc is I am about as far removed from middle England, where they all take place, as it is possible to be, without being Norwegian. Not to worry. I manage well enough! Thanks again for a great film.

Thanks for the very good explanation of every step. That is very helpful to us novices. By the way. They make ball cutters for the lathe that will reverse and cut concave cuts also. Not really that hard to make either.

@Thesheddweller

8 ай бұрын

Hi, thanks for watching, I know about ball or radius cutters and the capabilities, I have lots of projects on the go, what I really need is time cos I'm running out of that. cheers.

If you move the center of rotation for the boring head to the opposite side of the tilted rotary chuck, you should get a convex. If it’s a possibility irl due to interference between different tools, is another story though. The right mix between tilt angle and cutter radius may solve it. Don’t know the formula for that, but I’m sure there is one. Great project and execution! I like it. Especially the concave part. Clever!

@Thesheddweller

8 ай бұрын

Hi, Thanks for watching. Oh, there is definitely a formula for the milling combination to scallop out a radial arc or a spherical dish. Wikipedia is loaded with all sorts of formulas. cheers

Really enjoy your Vids always look forward to them but I wondered why you didnt reduce the size of the flange on the post to save you breaking through on the "T" nut jusaying see ya next time Paul Russ

@Thesheddweller

8 ай бұрын

Hi, thanks for watching. I made the flange as big as I could, to grab as much as possible under the tee nut slot, the larger the flange the better the grip. The only limiting factor is the size of the tee nut slot. cheers

BSF on an American lathe? Isn’t that sacrilege? Oh well. A really nice project and the tool holder looks very firm. Was that a motorcycle steering tube getting the treatment at the end? I’ve had to fettle a couple of those lately. Greatly enjoyed the video, thank you. Les

@Thesheddweller

8 ай бұрын

Hi Les, it's not that bad surely, I wouldn't say sacrilege... after all, it wasn't metric. yes the tube was an old busted steering tube. glad you enjoyed. Cheers.

I'll cop to being curious to make one of my own, with an adjustable parallel rather than the radiused bottom approach. Having the cutting force pressing more directly down onto the cross-slide just seems more efficient than having the tool cantilevered way out. Great video and great work on yours, if I try it myself I hope it'll come out equally well.

@Thesheddweller

8 ай бұрын

I'm sure it'll be fine it'll be interesting to see your take with the height adjustable washer. I had to stick to the old traditional tool post because, these tools I bought, are a little deep bodied, mind you I could have clamped them directly onto the compound slide, using two clamps through the tee slot but, I wanted to make something that was sort of traditional-ish. Regards.

Ive watched mamy of the videos from the guys machining in Pakistan and they do some amazing work at times but i dont understand why everything they make has to make contact with the dirty floor, everytime.

@Thesheddweller

8 ай бұрын

Hi, yes the finished parts don't seem to get the respect they deserve. Hey ho that's the way they work, but it works. 👍

If you decide to start adding music I have a request…..Marcel Marceau’s greatest hits..

@Thesheddweller

16 күн бұрын

Hi, I’m afraid I can’t please everybody. Cheers

@robertpearson8798

16 күн бұрын

@@Thesheddweller I assume that you know that he was a Mime😉

@Thesheddweller

15 күн бұрын

@@robertpearson8798 yep

What do you use for a scraper?

@Thesheddweller

8 ай бұрын

Hi, it is a 1 1/4" Tungsten Carbide tipped long handled scraper, I do also use an old file with a shaped end.

Got stuck at the math at 10:15. Had to do some algebra to understand what you were doing. You just figure that intuively or is that some common method for finding a radius?

@Thesheddweller

8 ай бұрын

Hi. that's a very good question, I'm not that intuitive but I must have used this simple formula many times in the past, I have it written down in an old (and decaying) note book. This note book I have, holds a jumble of calculations for many of my past working life problems. cheers.

'Promosm' 🤦

JUST EMAGEN WHAT YOU BE DOING WITHOUT ALLR HITECK EQUIPMENT ie stickeypin ,wightboard and such lol

@Thesheddweller

8 ай бұрын

Yup. Ifn I hadn't got that stuff I'd be left with a bow and string and a spinny thing. cheers