Miniature Lathe

4 Attachment(s)

Miniature Lathe

Started working on this project about a month ago now, it's starting to take shape and looking more like a lathe than a pile of parts and pieces, so far it's coming together nicely, although I must say working with these small of pieces does become a little cumbersome at times, it's been along time since I worked with small taps like 2-56, although in my early days of machining I worked for a guy and we did a lot 0-80 threads.

I'm designing this as I go along and documenting the build in cad, the bed is 12" long that's been machined and ground from solid steel, the headstock and tailstock were machined then ground in alignment to fit the beds ways perfectly, this project will take me several more months to complete I'm sure of, not only is it a model but it will be a working model with power feed.

I have attached a couple photos of the build as it is at this stage, anyone with a comment or idea would be appreciated

Doug

Attachment 29128 Attachment 29129

Attachment 29130 Attachment 29131

She's a beaut, Doug! Keep up the beautiful work and make sure to let me know when prints are available!! :clapping::hattip:

Walkman

Is it intended to be the equivalent of a small Taig or Sherline Lathe ? They are useful for folk with limited area to undertake their hobbies.

Impressive!!

rossbotics,

This is going to be one nice and ambitious project Doug! It will be fun to follow your progress as it unfolds. Can't wait to see the next installment!

Very neat! This is going to be cool to watch unfold.
Since it looks mostly complete I'd like to learn more about your spindle design - bearings / bushings / arrangement. Hollow vs solid shaft? Screw on chuck mount? Provisions for collets maybe?

That is a true thing of beauty Doug but then I don't think I've ever seen anything you've made so far that wasn't cause for bouts of heavy drooling and wondrous awe.

Would love to have more details of the build so far, like the steel grades used for the various parts etc.

Any plans for scraping and/or hardening the ways?

I am very anxious to see the quick change gear box!!! Actually, that thought started out as humorous, then as I it wrote, it morphed into, he very well might do that!!!!

Very awesome project to be sure.

Nice job Doug!! Your lathe reminds me of my old jeweler's lathe used when I was repairing antique clocks. My lathe has the ability to cut almost any part of a working mechanism of many old grandfather clocks on down to the finest smallest toothed wheel and shaft for a lady's wristwatch. The only thing missing is my experience at manufacturing many of these items normally handmade to replace any broken parts on the clock. I limited my repairs to only large clocks and left the fine work to my mentor who was still repairing tiny watches at the age of 89, when last we talked. I marvel at his competence and patience with maneuvering such intricately small parts under 10X magnification when I sometimes had trouble properly replacing a worn sleeve bushing in a clock works for a big daddy Grandfather clock!

I cannot wait to see the finished product, good luck with your build.

Now that is worthy of the new Tool of the Year award. Haven't seen that award yet but I
am nominating your lathe for the new award!

I don't use too many of the computer generation words or phrases but
your new project is Eye Candy to me. Looks like it will be an order of
tolerance better than any of the current brands of very small lathes.

Cheers, JR

Thank You Walkman
When the prints are ready i'll make them available

Doug

That looks sweet.
I finally bought lathe and mill to myself too...
But i bet it takes lots of time before i can make something similar. :)

Hi steamingbill
It's not intended to be replicated by no manufacturer, it's just a design I came up with, it's going on the fireplace mantel or in the book case when it's done, but I did want to make it an actual running machine before it finally gets stowed away.

Thanks Doug

Doug,

This will be a fantastic project and looking forward to following along on your build.

Also you have a great choice on your Mitutoyo Absolute self-zeroing caliper and the Mitutoyo digital micrometer. I have these instruments and never regretted paying a little more when buying these a few years ago - I never had any diameter/depth mis-reading and wished I had something similar for my old Starrett conventional depth micrometer set.

Regards,
Paul

Thanks old_toolmaker

Doug

Thanks petertha
The spindle is made from 303 St. Steel, the backing plate for the chuck is machined onto the spindle (all one piece) it has shouldered oil light bronze bushings in the headstock, the spindle could be machined to accept an ER16 collet chuck, it has a 3 jaw chuck that I made for right now, the spindle is solid 3/8" round, although it could be bored out, still have allot to do but it's getting there,

Thanks Man
Doug

Thanks for your kind thoughts Canobi
The lathe will be for looks mainly, it's probably going to the fire place mantel or book case when it's all said and done, but it will be a working machine!!!
I didn't use any special alloys other than the chuck jaws which were made from O-1 steel and hardened, the bed, head stock and tail stock were made from 1018 steel that has been precision ground all over, I'm taking my time building this little machine because I want it to be as precision as possible, so far I held the parallelism and squareness to .0003" and I'll maintain that accuracy throughout the entire project, I'll be posting stages of the build.

Thanks Canobi

Doug

So beautiful build!!
Good job rossbotics!

Thanks hemmjo
There will be a unit made that looks like a quick change gear box but it's not loaded with gears for changing feeds or threads, although it will have .002" per revolution feed, the little lathe will not be used as machine in my shop it will most likely end up on the fireplace mantel or in the book shelf, but it will be an actual metal working lathe.

Thank You
Doug

Thank You Clockguy
There was a friend of mine who started out in the same apprentice shop I did but he eventually went to clock making, he's 77 now and still making and repairing clocks, and I'm still an old tool maker LOL

Thanks Again
Doug

Thanks JR
Now that would be a hell of an award, tool of the year, but that does sound good, maybe you should mention that to Jon!!
Plenty of precision is built into the lathe, so far I have maintained .0003" in flat, square and parallel and I will continue to maintain that precision throughout the project, like I said it's going to take a couple more months to complete, I'll post a little more in about a month, I'm working on the carriage now.

Thanks for your comments JR

Doug

Thanks Tuomas
Glad to hear you're getting a start on your machine shop, you will enjoy your new equipment, this will open up a whole new world of manufacturing for you, if i can help you with a question or somewthing feel free to PM me.

Doug

Thanks Paul
The lathe is coming together slowly, not in a hurry, so far everything is within .0003" of being perfectly flat, parellel and square, going to try and hold those tolerances throughout the build.

The digital measuring tools are a absolute must have, wouldn't trade them for nothing and they are absolutely perfect, I have an old Craftsman depth gage I bought new when I was 19, in fact I got the blocks out the other day and did a little adjusting on it, 2 of the stems were out .0004", I don't use it enough to buy digital, and I sure wouldn't buy a cheap Chinese made measuring tool just to have a digital measuring tool, it would have to be a Starrett or Mitutoyo.

Thanks Paul

Doug

Thank You PowerMK

Doug

Quote:

Originally Posted by rossbotics

Thanks Tuomas
Glad to hear you're getting a start on your machine shop, you will enjoy your new equipment, this will open up a whole new world of manufacturing for you, if i can help you with a question or somewthing feel free to PM me.

Doug

Thanks. Most likely i will ask something soon. :)
Now i need to make sturdy stands for those.

Lathe weights about 50kg and Mill about 65kg.
Both are quite small. But i think i get quite far with them.

Non fibrating base for the lathe seems to be a little challenge.
I think im going to make one with only necessary steel, and use congrete to bring weight and sturdiness.
Otherwise it will easily cost little too much, if made only from steel.

In a way that is sad because it looks like it will be a perfectly functional watch makers lathe or similar small machine. On the other hand it is already a masterpiece of art.

Quote:

Originally Posted by rossbotics

Hi steamingbill
It's not intended to be replicated by no manufacturer, it's just a design I came up with, it's going on the fireplace mantel or in the book case when it's done, but I did want to make it an actual running machine before it finally gets stowed away.

Thanks Doug

Tools are are a struggle for most of us, especially if we don’t work directly in the machining industry. Personally I’ve yet to get any sort of mill and yes that is frustrating.

Quote:

Originally Posted by Tuomas

Thanks. Most likely i will ask something soon. :)
Now i need to make sturdy stands for those.

For stands I like welded steel for the frames. This even if I put a wood top on the frame. Of course this requires a welder and a good saw. The other option was n is lots of 2x4’s, 2x6’s, glue and construction screws.

Quote:

Lathe weights about 50kg and Mill about 65kg.

Not bad. If your lathe is anything like mine (it is about the same weight) you will likely want an additional set of riser blocks. My lathe sat too close to the chip pan for my big hands.

Quote:

Both are quite small. But i think i get quite far with them.

Non fibrating base for the lathe seems to be a little challenge.
I think im going to make one with only necessary steel, and use congrete to bring weight and sturdiness.

Concrete can work if it is the expanding type! You can run into loose concrete in steel tubing if it shrinks too much.

Quote:

Otherwise it will easily cost little too much, if made only from steel.

When making something heavy on purpose remember to build in a method of moving that object. I’m trying not saying this because things I made decades ago in my youth seem to be a lot harder to move these days in old age. Even stuff like furniture (a stereo center) can be an issue when it was built to n my teens and I’m now hitting sixty. Wheels are one solution but sometimes making it easy to slip a pallet jack or similar under is just as viable.

By the way as I get you will never move that heavy thing again doesn’t work. You eventually will want to change things up or clean behind.

Congratulations rossbotics - your Miniature Lathe is the Homemade Tool of the Week!

Tough week to win! We rarely have a decisive winner on these difficult weeks, but this week, there it is.

Some other nice picks from this week:

Two-Wheel Tractor by Vyacheslav.Nevolya
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Steampunk Tape Measure by KraftSmith
Oil Drum Wrench by mastersdlm

rossbotics - We'll be adding your tool entry to our All Homemade Tool of the Week winners post. And, you'll be receiving a $25 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.

This is your 28th Homemade Tool of the Week win. Here are all of your previous of your award-winning tools:

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rossbotics,

I still have and use my original Srarrett 0-3" depth mike I bought new in 1968 and also six piece set of Mitutoyo outside micrometers bought in 1969. They are old but still very serviceable. One of these fine days I will splurge for a new 6"digital caliper.

Hey Dick
Well I can't say the same about Mikes and calipers, I still have my Brown and Sharpe 0-4 Mikes that I have had since 1974 along with the Craftsman 0-3 depth mike, but I have been through 2 sets of 6" digital calipers and this is my 3rd one, I only have one 0-1 Mitutoyo Digital Mike, thinking about getting a 1-2 digital mike although it wouldn't get used much besides they are expensive.

Splurge and get yourself a Mitutoyo Digital Caliper, you'll be glad you did.

Doug

It's an absolute beauty, well done Doug! I can't wait to see more of the progress of this great project.

Cheers
Dimitris

Thanks Dimitris
I'm working on it

Doug

Doug
I have not responded to this build yet, I've been waiting to to see it evolve a little bit more. I have one question and that is, the flat belt? Would have it been better going with a round belt instead of flat. I truly enjoy the idea of a bookshelf piece but yet a functioning unit. The reason I mentioned that is I have been looking at my toys and thing that I enjoy working on will one day be someone else's. I just hope they enjoy as much as I did. I always like the detail you invest in everything, you can be proud of it all.
Thank you so much for sharing with us all.
Nelson

Thank You Nelson
I chose a flat belt because in the old days everything ran on flat belts off of an overhead line shaft, trying to keep it like an older machine if you know what I mean, I did consider at first a round belt, but that changed LOL, fortunately enough I have a son who will remember and appreciate old dad and all the long hard hours he spent dreaming, drawing and making these things.

I'll post more as the project comes together.

Thanks Nelson

Doug

Thanks rossbotics! We've added your Miniature Lathe Build to our Lathes category,
as well as to your builder page: rossbotics's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/homemade-miniature-lathe-build"> <img src="/uploads/222793/homemade-miniature-lathe-build.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="http://www.homemadetools.net/homemade-miniature-lathe-build">Miniature Lathe Build</a> <span> by <a href="http://www.homemadetools.net/builder/rossbotics">rossbotics</a></span> </div> <div class="tags">tags: <a href='http://www.homemadetools.net/tag/lathe'>lathe</a> </div> </div> </div> </div>

rossbotics,

I will take your advice and look into a Mitutoyo Digital Caliper . I often have trouble parting with money, but what the heck-I can't take it with me!

Old Toolmaker - is that a quorn for your icon? Your build or stock photo? If the former, do you have a thread discussing your build? Yet?

Ross - beautiful lathe! How did you grind the ways? Do you have, or have access to, a surface grinder, or did you use some other equipment?

N00b Machinist,

The Quorn pictured on my signature page was built by me over a period of about 12 years. I do have a build page. I will try to find it for you and I will get back to you.
Thanks for asking!

Would like to see more of your mini lathe.

Another Homemade tool. Great job. This is what we're looking for.