JFMT LATHE TEST CUTS . Part 2

The trial cut's continue !

[Paul-FrancisB]

G'day Max, 2 videos in as many days, you are spoiling us 👍.
It's interesting seeing how you approach inspecting and testing your lathe

[StuartsShed]

Following along with great interest. Homing in on the root cause very soon. That revolving center is a seriously nice piece of kit.

[jamesreed]

I'm not so sure about the "scraptonium", looks more like mysterium to me. I really appreciate all the work you have spent getting the JFMT Lathe online. It shows me and everyone else what a guy can accomplish on his own. KOKO!

[RalfyCustoms]

Happy days Max and g'day, lovely bit of scrapanium there, and another job well done, I'm always impressed by your methods, and always learn something too, honestly if there's an engineering job and I'm not sure the best way, I search to see if you've done it 😂

[jasonhull]

😂, started to sound like my smoke alarm going off.
Those were some great cuts, these types of heavy pieces are so fascinating to watch turned down. But turning has its gremlins. 😊🍻

[lloyd]

That chuck on the tailstock is really wobbling??

[brettadams]

ok im not a engineer but it might be tailstock pressure that causing the fat in middle of bar you would need to dial indicate while with steady rests then with tailstock has to be done while rotating at turning speed juts thinking of spinning taffy graverty does things

[jeffvalero]

Is there a video on the making of the Machine Jacks made by all those Youtubers that you mentioned?

[markfoster]

Is the saddle sitting down with a roughing cut . something crazy

[spikeypineapple]

Carriage has gotta be racking away from the ways, surely?

[DudleyToolwright]

There is nothing more satisfying than watching rusty piece of metal turned in to something shiny and smooth.

[DCT_Aaron_Engineering]

G'day Max. That was a nice set up mate. I really like that nice laser engraving on your adjustable jack at 14:00 (😆wink wink). Cheers, the big fella.

[AaronEngineering]

Holy hectapascals Max. 10 micron difference over that length is bloody amazing mate. Cheers Aaron.

[dlstanf]

Mate, if i keep watching your videos, great, by the way, I'll be speaking Australianese.

[bostedtap]

You found the lengthening kit, ref rusty multi part scrap steel LOL.
I'm still trying to finish my tail-stock chuck/s, still got a small 4 jaw shrunk on an old revolving centre.
Adjustable jack does the job, again 👌👌.
Great job Max, thanks for sharing.

[jasonhull]

That Ol’ D&G is going to be a very cool machine to see used by a Fully capable operator.
Amazing older machines. Heavy Iron. And very powerful. Looking forward to it. 👍🏻🍻

[Randysshop]

Some more of the HKW material!! Something strange is going on, you had a bow in the middle of the hollow bar that was shorter, and again in the long bar in the middle. I am sure you will get it sorted out. Have a good day Max. Cheers

[matttradie]

Max, do you think perhaps that material could be moving around abit causing the variations? I keep thinking about that massive bit of round that kurtis got that was not destressed enough, so much he couldnt complete the job.
Im no metallurgist but would a length of chrome hydraulic rod be fairly stable?

[Kevin-bnww]

Doesn't look to me like a bed twist issue given your previous level readings. I would look at the saddle/cross slide gibs or the wear surfaces they run on. I'm working on a similar sized LeBlond (19x72) and I've noticed the saddle gibs can create some strange measurements if they push the tool off center. That looks like it is almost if the gibs are properly adjusted close to the spindle nose but the tool pressure starts pushing the tool off center as it gets farther down...

[iancraig]

That shafting is good quality---inbuilt tension; could be causing it to walk around a bit or like you say a worn bed but to be worn there is a puzzle that I do not get..Good luck with that Max you will sort it