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. 👍🏻🍻
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 😂
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.
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
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!
Knowing when to stop aligning a lathe is the most valuable :) That "scrap" turned quite nicely. Might be good for your tailstock chuck project when you have time
G'day Max. Very nice looking finish. Just wonder if the centre is due to pressure from the toolpost going across the central part of the shaft. Try adding the Follow Rest, & see if there is a difference ? Good video, showing nothing can be taken for GRANT ED 😅😅😅
😂, 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. 😊🍻
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?
That is a head scratcher indeed Max. I can bring out a Starret level to use in conjunction with your level if you want to mess with the centre height adjustment without having to move your level & wait for it to settle all the time? Set up the two levels and adjust to order without re-positioning & waiting? If the bed is either high or low in the middle, might that not account for the football bulge in the middle? 🤷♂️ Although it could also be wear in the ways as well as you suggest. I have no doubt you will work it out given time.
Thank you for taking us into your thought process. You are a really good inspiration for system theoretical thinking, see the big picture and work with the details. It will be interesting to follow the measurement of way
I should add... run your test indicator off the back of the saddle and against the top of the insert tool itself (if you have one that can reach that far) and see if the tool is taking a nosedive off center as your saddle moves down the lathe...
@@swanvalleymachineshopAnd this only happens when the cut is light and the tool forces lower? With high forces the saddle is stabilised? Fascinating episode.
Yep agree. Crashed my Mercer Dti, pulled the centre's out of the micro ball bearings, 3mm OD, 1mm ID by 1MM thick, left the outer races in place, these are the adjustment screws for the finger, got them out using 4 flute 3mm carbide end mill in collet Chuck. Ordered new bearings. The balls are 25 thou in Dia!
Hi Max, did you try running a cut with indicators set-up between the saddle and bed, front and rear, with the tool post loaded. It may give you an indication to what areas need a closer look.
It’s odd, for sure. It seems as though the carriage is cocking to the side at some point, or the cross slide, or the compound. That would swing the cutter tip away or towards the surface. It seems as though there’s chromium in the bar for that heat. If it’s the center foot, it should be consistent.
Could it be longitudinal expansion due to heat and not having anywhere to go. Maybe tending to bow the work piece being machined as well as slewing the tailstock sideways...taking up any play and pushing it all to one side. It would be interesting to repeat the test using a steady rest to eliminate an tension/compression built up in the work.
Max could it be in the ways of the carriage and tool pressure but the light cuts sort of cancels this out or does it something is moving somewhere you ran passes with the indicator on the tool poast was thinking may be to far a way might need to be on back side of the tool itself don't know but the amount it is out for General work is this going to be a problem i don't know for me it would be fine but you do more precise work than i so answered my own question all i can say is good luck with it and i understand your frustration with it am sure you will beat it cheers from N Q
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
Could you put a Dial Micrometer on the back and run it along the back side as do your cut to serif the cross slide is moving in or out? Or deflection in the bed with tool load to round bar been machined???
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...
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
@swanvalleymachineshop one thing about your videos, you have a really high pitch tone in all your videos, about 17khz I think. For my younger ears it's really annoying to listen to. Have you got any way to have a look at it?
Knock it out of the chuck and turn it between centres to take out the possible stress from the chuck jaws, At least turn the bar round and clamp on a better surface in the chuck. Just my 2 cents worth but it is the little things that can be a pain in the arse in the setting up of lathes.
Hmm, Something weird going on there Max. Not sure why the roughing cut should be ok but the finisher should be so bad. Bit of a head scratcher. Its not the tailstock, or the centre, not the compound or crosslide, the only thing I can think is the the bed has a bow in it towards you, although how or why that could happen is a mystery.
There is nothing more satisfying than watching rusty piece of metal turned in to something shiny and smooth.
I like the way you think, DudleyToolwright! KOKO!
Cheers , i had to sand the worst of the rust off first ! Shocking stuff , gets everywhere & into the coolant tank otherwise . 👍
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
Cheers 👍
Holy hectapascals Max. 10 micron difference over that length is bloody amazing mate. Cheers Aaron.
Still a lot more investigating to go ! Cheers 👍
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.
Lol , Cheers Aaron . Sorry Mate , i forgot about that . You should have engraved your bloody thing on it as you were part of it !!! 👍
Many thanks for sharing your time and wisdom with us Max, and in such a pleasant manner. Cheers!
Thanks 👍
Following along with great interest. Homing in on the root cause very soon. That revolving center is a seriously nice piece of kit.
Cheers Stuart . I will be going into more in depth finding as soon as i have time . 👍
Thanks, Max. Learned a new way to measure and swear, and how much a pain in the butt getting the final tuning and understanding of the machine.
Lol , just opening several cans of worms for next year ! 👍
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. 👍🏻🍻
Thanks 👍
Very interesting and thanks for the education. I learn something here every time i watch. Thanks again.
Cheers 👍
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 😂
Cheers Ralfy . 👍👍👍
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.
Cheers 👍
Mi amigo max saludo y viendo en mis tiempos libres tús grandes videos 👏👏👏👍
Thanks 👍👍👍
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
No worries 👍
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!
Thanks . I might get a bit analysed so i know what it is . 👍
Knowing when to stop aligning a lathe is the most valuable :)
That "scrap" turned quite nicely. Might be good for your tailstock chuck project when you have time
Thanks . The materials & bearings have been sitting on my other bench for a few weeks now ! 👍
G'day Max. Very nice looking finish. Just wonder if the centre is due to pressure from the toolpost going across the central part of the shaft. Try adding the Follow Rest, & see if there is a difference ?
Good video, showing nothing can be taken for GRANT ED 😅😅😅
That bar would deflect a follower rest , aka door stop . 👍
😂, 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. 😊🍻
Cheers 👍
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?
No , it's not warping . 👍
That NoNamium Alloy gave a nice finish. Thanks for the vidio.
Cheers 👍
That is a head scratcher indeed Max.
I can bring out a Starret level to use in conjunction with your level if you want to mess with the centre height adjustment without having to move your level & wait for it to settle all the time?
Set up the two levels and adjust to order without re-positioning & waiting?
If the bed is either high or low in the middle, might that not account for the football bulge in the middle? 🤷♂️
Although it could also be wear in the ways as well as you suggest.
I have no doubt you will work it out given time.
Next years problem ! 👍
Thanks for the show Max 🍻
Cheers 👍
Thank you for taking us into your thought process. You are a really good inspiration for system theoretical thinking, see the big picture and work with the details. It will be interesting to follow the measurement of way
No worries 👍
The tool post looks to be the best ever for the type of compound rest without a slot. The machine looks and run great.
I an loving the tool post Don . Cheers 👍
Another top instalment young max. Looking forward to the cogs turning to work out what’s going on.
Happy days cobber🤣🤣.
Thanks 👍
Looks like a nice day over that side Max. Victoria has had wind most days this week. cheers, Butch.
We have our fair share every couple of days ! Cheers 👍
I should add... run your test indicator off the back of the saddle and against the top of the insert tool itself (if you have one that can reach that far) and see if the tool is taking a nosedive off center as your saddle moves down the lathe...
The tool is solid on the cross slide . 👍
good video friend Max
Thanks 👍
Hi Max, it's doing my head in.
Need a beer after watching.
Lol , i had a couple ! I think the small amount of wear on the inner way is causing the saddle to rock or flex . 👍
@@swanvalleymachineshopAnd this only happens when the cut is light and the tool forces lower? With high forces the saddle is stabilised? Fascinating episode.
Yep agree.
Crashed my Mercer Dti, pulled the centre's out of the micro ball bearings, 3mm OD, 1mm ID by 1MM thick, left the outer races in place, these are the adjustment screws for the finger, got them out using 4 flute 3mm carbide end mill in collet Chuck.
Ordered new bearings.
The balls are 25 thou in Dia!
Hi Max, did you try running a cut with indicators set-up between the saddle and bed, front and rear, with the tool post loaded. It may give you an indication to what areas need a closer look.
Still to do , but next year . 👍
It’s odd, for sure. It seems as though the carriage is cocking to the side at some point, or the cross slide, or the compound. That would swing the cutter tip away or towards the surface. It seems as though there’s chromium in the bar for that heat. If it’s the center foot, it should be consistent.
I suspect the carriage is rocking . 👍
Could it be longitudinal expansion due to heat and not having anywhere to go. Maybe tending to bow the work piece being machined as well as slewing the tailstock sideways...taking up any play and pushing it all to one side. It would be interesting to repeat the test using a steady rest to eliminate an tension/compression built up in the work.
It did a similar thing in the last video with hollow bar . Expansion does not have the effect i am getting . 👍
Looks great Max. ---Doozer
Cheers 👍
Getting the steady rest on, I thought now what are you going to do? Watch and learn.
Lol , Cheers 👍
That chuck on the tailstock is really wobbling??
It is pushed hard against a saw cut face . 👍
Does your insert work for very small finishing cuts? I usually have to switch to positive rake cutters or h.s.s. For cuts that fine.
Try using higher grade steel . It is an ordinary neg rake insert . 👍
Is there a video on the making of the Machine Jacks made by all those RUclipsrs that you mentioned?
Yes , there is . Look up one of my video's called , A few good men . There channels are there with a link . Jacks for Max . Cheers 👍
@@swanvalleymachineshop Thanks that was preaty awesome! You was going on with Matty?
Great video!
Cheers 👍
Mate, if i keep watching your videos, great, by the way, I'll be speaking Australianese.
Lol , Cheers 👍
Oh Norh
Max could it be in the ways of the carriage and tool pressure but the light cuts sort of cancels this out or does it something is moving somewhere you ran passes with the indicator on the tool poast was thinking may be to far a way might need to be on back side of the tool itself don't know but the amount it is out for General work is this going to be a problem i don't know for me it would be fine but you do more precise work than i so answered my own question
all i can say is good luck with it and i understand your frustration with it am sure you will beat it
cheers from N Q
Will go into more depth on it next year . 👍
Thank you Max!
No worries 👍
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
Cheers 👍
you should use those chips in a table top. under clear resin. that would be beautiful table. them chips were pretty
Great idea ! Might do that next year , i have some large slabs i have cut . 👍
@@swanvalleymachineshop people would pay alot for a table like that and the bright side is, you make money off chips. lol
Could you put a Dial Micrometer on the back and run it along the back side as do your cut to serif the cross slide is moving in or out? Or deflection in the bed with tool load to round bar been machined???
I will later on . 👍
Is it some sort of induction hardened material - although it didn't seem that, looking at the fresh cut end?
No not induction hardened . Probably 1045 or 4140 . 👍
@26:17, Max, can I borrow those earmuffs? that was a serious f sharp
Lol , 👍
> nice going there max. was wondering what a 'fruitful' turning session means - possibly something along the lines of bananas r us?
Cheers 👍
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...
This saddle does not have gibs , just the under side keepers . I need to measure the wear on the inner way . 👍
Yep, I'm proud of you :)
Lol , Birds nest of the week award for sure !!! Thanks 👍👍👍
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
Cheers 👍
It's been time ! That's going to take a bit of thinking about .. better go cut the grass and think about it
Better to have a beer or three ! 👍
Is the saddle sitting down with a roughing cut . something crazy
I think you are onto it ! 👍
@@swanvalleymachineshop oh hope it's not to hard to fix . Go max go !
Perfect Max 👍👍👍
A way to go yet ! 👍
Cheers Max. 👍🇳🇱
No worries 👍
Carriage has gotta be racking away from the ways, surely?
I think it is rocking . 👍
@swanvalleymachineshop one thing about your videos, you have a really high pitch tone in all your videos, about 17khz I think. For my younger ears it's really annoying to listen to. Have you got any way to have a look at it?
Knock it out of the chuck and turn it between centres to take out the possible stress from the chuck jaws,
At least turn the bar round and clamp on a better surface in the chuck.
Just my 2 cents worth but it is the little things that can be a pain in the arse in the setting up of lathes.
That is why i changed the clamping set up toward the end . 👍
@@swanvalleymachineshop I realised as I kept watching but was too slack to try and edit the comment.
Keep up the good work.
Thx for the vid.
No worries 👍
👍👍😎👍👍
Cheers 👍
👍
Cheers 👍👍👍
A level. Bed means nothing if the cut is not true
Double edged sword . If not level the tailstock will need adjustment every time it is moved . 👍
I sent you an email Max.
Cheers 👍
Hmm, Something weird going on there Max. Not sure why the roughing cut should be ok but the finisher should be so bad. Bit of a head scratcher. Its not the tailstock, or the centre, not the compound or crosslide, the only thing I can think is the the bed has a bow in it towards you, although how or why that could happen is a mystery.
I think a little wear on the inner way causing the saddle to rock slightly . A problem for a way later date ! 👍 .
Thanks for the look!
No worries 👍