http://www.modelbarrels.com/files/lathe.jpg
overall view of my set-up
http://www.modelbarrels.com/files/lathehead.jpg
details of the head; the2 tappedholes in the front of the toolpost allow me to adda piggy back tool holder; stops me from losing my distance from the turning tool to the partoff tool
http://www.modelbarrels.com/files/lathetail.jpg
tailstock set-up
http://www.modelbarrels.com/files/lathenut.jpg
z axis nut; 2 parts with a spring to stop BL

Just under the chuck; i did mess up in thisarea; I can fix it; "ONE DAY"
http://www.modelbarrels.com/files/lathescrew.jpg
need to be able to have more than 4 images here per post

Please show us some pictures of some parts you made with this great machine!
Looks very solid to me.

there's lots on my site
www.modelbarrels.com

Is the tailstock removable?

What is the through bore on your spindle head?

What motor did you use that's hidden under the countertop.

Thanks,

Is the tailstock removable?

What is the through bore on your spindle head?

What motor did you use that's hidden under the countertop.

Thanks,
The tailstock upper part can be moved back; if you remove the plate carrying the stepper you can remove the tailstock off the ways

The spindle has a 23/32nd hole through

The motor for now is a Marathon 1/3hp 120v single phase 3600 rpm

Doesn't the second toolholder bother you during work?

Neat machine! Keep the photos comin ;).

not at all; every thing i make has to be parted off; I need to now the exact distance all the time; so i just have it always there
It's no different than a turret lathe

Sweet :cheers:

You asked what it can make; helped make this with the help of my 4 axis

http://www.modelbarrels.com/files/S100-prop.jpg
http://www.modelbarrels.com/files/S100-prop-1.jpg
http://www.modelbarrels.com/files/S100-prop-2.jpg

amazing.
Love photo's.

Really nice machinery you've got over there steve.

On your chrome rods, do they run on a bushing? Or is the carriage just drilled to slip fit over the rod?

The carrage is wire EDM'ed to fit; the clearance is about 0.001 plus i have wear pads and adjusters to keep it tight as it wears; but up to now I have yet to adjust it; so the EDM finish on the 7075 T651 is perfect; it holds the oil just as planned

What size lead screws are you using for the cross slide?

Did you use a spring loaded double nut for that also?

Also, can I get a couple shots of the backside of your cross slide. ((pulley/stepper mount))

Thanks

Nice job, thanks for the photos!

What size lead screws are you using for the cross slide?

Did you use a spring loaded double nut for that also?

Also, can I get a couple shots of the backside of your cross slide. ((pulley/stepper mount))

Thanks


It's just a direct drive; through a coupling
Backlash is taken up by a teflon button

Tell me how you made the spindle...nice job BTW!

The spindle i turned from a 13" length of 4140 prehard; started at 4.75 diameter
I turned it down to the diameters needed and parted it off
The chuck mount face was turned by the lathe it's self once the spindle was installed; this ensured accurate 90's and the chuck runs BOB ON

Hi,Did you bulid the machine by your self?

did you read the thread?

nope,sorry didnt had the time \:

Normally I don't mind helping people with questions about this thread; but I'm really busy right now with life in general; Holiday weekend gardening/making stuff with the lathe/call-in's from work; so please take the time to read the thread; if there is something unclear I'll answer

Replaced the 3 jaw this weekend; it's done a lot ofwork
The rear seal will be soon; it's starting to leak; but I'm not surprised with over 100,000,000 rev's completed; when I do the rear seal i might as well replace the main bearings too as well as the front seal
Up to now; I have replaced the Z axis nut 3 times and the X 2 times; worn out a Jacob's number 0 chuck; went through at least 10 61-80 drill sets; about 2 liters of oil
must be 5 part off tools (accidents) and 6 main cutting tools (same) but the steppers and Zeta4"s have been great; even the Z axis belt is holding up well

All in all; a good design; i'm now building the re-placement/companion; but this one is all steel

This is a great thread!

Realy love the machine man you did an awsome job!

This is the kind of insperation I need to finish mine off. Now where was that wrench? :D

Thanks for the update Stevie,

Will you be doing an illustrated Journal of the Steel replacement machine here? Please do.

I have it all in the shop I manage; the bed is just about completed; and it's heavy for sure; 1" thick base 3/4" flanks all ground flat and bolted together; then re-ground flat for the SR25V ways; the tail will run on 1 SR25W and a HSR15WV with 2 slider blocks
Still pondering the Head
The Z is a 4mm pitch ball screw (THK) with 14.5" travel the X is another ball screw a 3mm lead. Bearing journals are .249" diameter and thread length is 135mm. Thread O.D. is .36" diameter. as i only use about 30mm total travel in normal use; this will be quite big enough
Planning a 1HP 1 PH drive system for the head; 2 Zeta4 stepper drives; 300oz/in steppers with 6-1 reductions to get high resolution
The tail maybe a turret type with 4 stations (not sure yet?)

Best Homemade Lathe I have ever seen. Great Work.

tobyaxis :cheers:

I have it all in the shop I manage; the bed is just about completed; and it's heavy for sure; 1" thick base 3/4" flanks all ground flat and bolted together; then re-ground flat for the SR25V ways; the tail will run on 1 SR25W and a HSR15WV with 2 slider blocks
Still pondering the Head
The Z is a 4mm pitch ball screw (THK) with 14.5" travel the X is another ball screw a 3mm lead. Bearing journals are .249" diameter and thread length is 135mm. Thread O.D. is .36" diameter. as i only use about 30mm total travel in normal use; this will be quite big enough
Planning a 1HP 1 PH drive system for the head; 2 Zeta4 stepper drives; 300oz/in steppers with 6-1 reductions to get high resolution
The tail maybe a turret type with 4 stations (not sure yet?)

Do you have some plans or CAD pics to show from the current or the future project ?

With the tailstock running on the same linear rails as the toolpost/crosslide, how are you planning on locking the tailstock in place ?

Any tips on how the head+spindle should be aligned parallell to the linear rails ?

I set the head up loose and use a 1/2" very long core pin in the chuck
Then run a 0.0001 dial up and down the pin; make sure to rotate the pin a few degrees to make sure any run out is eleminated
both ways can be setup this way
the vertical and parallel to the ways

I dont work from plans or even draw these in CAD; takes longer to draw them than make the dang things;all the plans are in my head

As for locking the tailstock; a simple block cut close to the size of the SR25 rail with a split and clamp screw will be good enough
My machines are custom designed and built for my applications; I don't need or want to machine steel at home; I do enough of that every work day

Looks great Stevie. Is that aluminum for the base? And why didn,t you go with steel or iron? But then again I see the parts you make are small so I guess aluminum would work as far as rigidness goes.

You ROCKS man !!! realy cool !!

thats 7075 t651
better than mild steel

First let me say - KUDOS on a very nice effort.

I was intrigued with the lead screw running down he center of the machine - it should do a lot to drive the Z w/o cocking or twisting. Moreover, GREAT packaging idea!!!!

My only concern would be over debris getting into acme screw. I"d look into finding a telscoping coiled sleeve thingie that I saw some place. It telescopes inside itself - I'd consider it a must immediately under the spindle and bewteen spindl housing and cross slide.

7075 is nice to machine as compared to steel, but it still lacks the rigidity. For a light lathe like this, it is probably irrelevant. IT does have decent tensile strength that is comparable to mild steel in T6 condition - not familiar with T651.

If you do a heavier duty on, and I do admit steel is a PITA to make, it's mass and stiffness are something that serves you well in machine tools. Do have the steel (especially 4140/4150) double drawng (annealed and then normalized) prior to cutting. It machines nicely then and stays much more stable than simply off the shelf "annealed" stock you get from the warehouse.

all it ever sees is brass; the chips just fall into the slot; the front nut pushes it up to the front of the slot
I shopvac every 3 or 4th part; yes it could be improved; but after 2 yrs of running every day it seems to be just fine; and the new all steel bed replacement is coming along; it has a 6 jaw; and much better resolution

The 7075 t651 is great; no wear on the ways up to now; thats a 4" x 2" the bed is made from so it's plenty strong for brass cutting
The cross slide is 4140 running on 7075 t651; I have teflon wear adjusters; might have adjusted it 2 times in 2 yrs

......

....

plans ... we need full plans !!!

Guys I Have Some Sad News The Man You Know As Stevie Has Passed Away,he Had A Heart Attack Last Night And Died. I Dont Really Know Where To Post This So That Everyone Can See It So If Someone Could Do That I Would Appreciate It. If Anyone Would Like To Know Anything More I Will Do My Best To Fill In The Blanks. Thanks Mike

Oh that is awful. I'm really sad to hear that.

If you know his family tell them he was thought of pretty highly here.

You can post it in the general section / club house I think.

Thats sad news, sorry to hear that.

Jerry

.

I hate to hear that also.

That is terrible news. My condolences to his family.

Eric

Its a very sad news. My condolences to his family.
I think the detailed pictures of his projects were very inspiring and he will be missed by all.

R Rossey

His amazing builds from scratch will not be forgotten especially the mill project he completed recently. My condolences to his friends and family.

Jason

hi guys

It is a very sad news. My condolences to his family.

Stevie will be missed BIG TIME one amazing bloke , stevie rest in peace



THERE WILL COME SOFT RAINS

There will come soft rains and the smell of the ground,
And swallows circling with their shimmering sound;

And frogs in the pools singing at night,
And wild plum trees in tremulous white;

Robins will wear their feathery fire
Whistling their whims on a low fence-wire;

And not one will know of the war, not one
Will care at last when it is done.

Not one would mind, neither bird nor tree,
If mankind perished utterly;

And Spring herself, when she woke at dawn,
Would scarcely know that we were gone.


from Flame and Shadow (1920)

This is awful news, please let his family know that he was one of the best machine builders on cnczone, and inspired many people, including myself. It saddens me greatly to hear of this news. Stevie you will be missed.

Truely sad news.

I never knew him in person, but I enjoyed his posts and the photos of ability.

He was always prompt to answer my questions.

My sympathy for the family.

That's terrible news.
Sorry to hear that too.
Condoleances to friends and family.

He seemed like such a pleasant individual - I have been inspired by his work as, I am certain, all of us have.

I never know what to say in situations like this. Of course, my condolences to his family. He will never know how many folks that never met or talked to him in person were touched by his work in some way. Maybe his work inspired some to match his ingenuity or precision, or maybe attempt to match his craftsmanship or even his character, his humbleness, or his passion for his work.

Scott

Guys I Have Some Sad News The Man You Know As Stevie Has Passed Away,he Had A Heart Attack Last Night And Died. I Dont Really Know Where To Post This So That Everyone Can See It So If Someone Could Do That I Would Appreciate It. If Anyone Would Like To Know Anything More I Will Do My Best To Fill In The Blanks. Thanks Mike

OMG ... thats terrible !!! i never see this in foruns before ... so sad guys !!!

No more words :eek: :confused:

...and the time i return....I just now heard of Stevie's passing...please forgive the tardiness of this sentiment...but my condolnences...