Simple Low-Cost Lathe Tailstock Rotary Collet Chuck
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- Опубликовано: 14 окт 2022
- You too can machine a very simple, low-cost rotary tailstock chuck for your lathe with this OneSimpleTrick(tm). Spoiler alert, there's no trick, this device really IS simple to make.
Holding small diameter workpieces in a lathe often needs a tailstock-mounted rotating chuck. They are a lot of work to make and are not exactly cheap to buy. If you already have a rotating tailstock centre, this is a nice easy project to hold long and thin parts to help control chatter, singing and deflection. I'll be using it to make multiple circlip grooves at very precise spacings, but I've also used it to cut long single-point threads in 3 mm or 1/8" rod. It only has two parts plus some grubscrews and was a fun little project on a rainy afternoon to make my lathe even more useful than it already is.
Expect to see it appear in some upcoming machining videos!
Starrett 93B tap wrench from amazon.com amzn.to/3VzOxIn
or from amazon.co.uk and others amzn.to/3rYAbDX
Starrett 93A small tap wrench from amazon.com amzn.to/3VyOcWD
or from amazon.co.uk and others amzn.to/3D0ZQlP
Music: "Corncob" by Kevin Macleod is licenced to RUclips
Till sound from Benboncan freesound.org/people/Benbonca...
creativecommons.org/licenses/...
Contents:
00:00 What? 
Наука
@jimsiss correctly spotted that I accused that little Tesa 3 point bore mic of being a Mitutoyo at 14:36 Ooops. Also, using a Haimer in a drill chuck is definitely deprecated, but I tightened it not-a-lot. It's better to use a friction edge-finder as it would (probably) compensate for any runout in the chuck.
Such a relief to see someone actually does it the proper way and uses spot drills for pilot holes instead of using center drills!
There are two spot drills loaded in the tool changer on my new SYIL X5 right now. Some big holes, some tiny!
This is the first of your videos that The Algorithm has seen fit to serve up to me, but the humor overall and especially your delivery on "impotent protest against imperialism and concentricity" just utterly slayed me, so well played, another channel on my list to chew through the backlog of.
Glad that you found me at last! I'm currently in the very splendid United States of America, talking about microwaves and machining with some fascinating folks and catching a little of the fall leaf colours in MA and CT. Watch this space for the video about what I am doing over here. I'm very excited about what I've been seeing and can't wait to share it with everyone
Same here my first video of yours I have seen. Instantly subbed.
Super, thanks very much! You returned from a filming trip to New England for an upcoming series of videos, but I have a few in the pipeline that just need a little (!) more work. It usually takes me about one hour per minute of finished video, but some of the more intricate ones can take two hours per minute.
The red tick at success discombobulates my OCD but congratulations on the finger mangler 5,000,000
Major fail in the tick colour department sorry! Red is the default and I forgot to change it. Several times. The FM Five Million is an homage to the most excellent Lauri Vuohensilta. I found the box of 4 mm grubscrews later that day in a drawer marked "4 mm grub screws". No wonder I couldn't find them
This was all done so fantastically, I really loved it! You sir are doing some amazing things, know that it does not go unnoticed!!!
Oh nice, I've been meaning to make one of these as well!
Nice simple little job. Actually I just bought a cheap tailstock chuck to hold larger material, and tubes, but I think I need to make a serious one with good bearings and a bit of proper precision.
Dude, I think I’m getting it, You’ve really got the magic
Begging your pardon but 1.5" brass is not the sort of thing for cheapskates, at least not around here 😅
I'm blessed by the sort of friends who say things like "Hey, I have these lumps of brass bar, would you like them for free?", but ebay suppliers will sell me a 100 mm/ 4" bar, delivered, for £22 (about the same as $22 US these days) and that's enough to make two. Mild steel, cast iron and even aluminium would work. Cheese, perhaps not.
Maybe not your Stilton or Jarlsberg, but if you leave a block of good old Cheddar out on the back porch for a couple of weeks I bet it would take an end mill nicely.
My favourite is really old Gouda. That stuff is amazing. I really should try milling some. Can't get the good stuff in the UK but when I used to visit my friend in Utrecht, we hit the markets and cheese shops and I stuffed myself with disreputable greying chalky Gouda and raw herrings. Delicious. If I left Cheddar on the back porch, I'd give it two hours before the local wildlife ate the lot. That's if the Chihuahuas don't get to it first
O.K., then. Challenge tossed over. Let's see if we can get all the RUclipsr machinists to make a real part with concentric holes and a minimum of complexity. An eccentric cam, say. Use the best available unlikely material, such as a good hard parmagiana reggiana, or bezoar, or some such:-)
The same thought crossed my mind.
"One man's rubbish" .. and all that.
I used to make gates and railings .. never any shortage of rectangular and square bar but to the most basic of spec.
Brass, Aluminium ! Luxury
thank you sir.....cheers from the US, Paul
I just came to my subscriptions after some chatter on a gunsmith forum... where we were discussing this exact thing. I should buy a lottery ticket.
I needed one urgently to cut some 0.5 mm circlip grooves in a 4mm steel shaft at precise spacings, so I just decided to try to make one after failing to centre-drill the bar to use a normal rotating centre
Now I need a tiny travelling steady-rest so I can single-point some long threads in 5 mm Tellurium Copper bar. That should be fun.
@@MachiningandMicrowaves Same. I made one a little bigger, and bedded the gizmo over the center point.
@@MachiningandMicrowaves You can do it!
Just found your channel glad I did.
Very pleased to have you on board! I can't wait to get back to the UK and into the machine shop and lab. Talking to all these experts here in sunny and beautiful New England has given me enough ideas for a year of projects.
@@MachiningandMicrowaves glad your getting many new ideas. Can't wait to see show they turn out. Have a safe trip back home.
Gotta say well done, also your intro animation was pretty nice, my PC would probably blow up trying to render this in Inventor D:
This old clunker is nearly six years old now. It doesn't have an SSD drive, and "only" has 32 GB of memory. I really need to get a replacement, but the price of a new unit with a better processor (3.2 GHz i7 lotsacores) and that much memory plus a decent graphics card and zillions of fast ports is just off the scale of silly, so it will have to suffice a bit longer. Perhaps if I just chuck in a big SSD it might keep me going for another year. It fails when trying to play sped-up video in PowerDirector, so I've dug deep and paid up for Adobe Creative Cloud in the vain hope that Premiere might handle this better, and perhaps crash slightly less often. I lost more than an hour last night from PD crashing on me, and it's painfully slow doing inserts and undo at times. I'll probably hate Premiere Pro just as much as I hate all software, but if it can manage less than one major crash a day, that would be very cool. I use Illustrator, but ca't get my head around the other apps yet. Never used Photoshop, not Lightbox. I have a 15 year old Macromedia suite licence and I use GIMP, Povray and Blender for anything fancy. Just thought I should try out the gasping bloatware to see if I can bear it. I need to be brave...
@@MachiningandMicrowaves my 9 years old PC (Xeon 32GB) is still pretty good, but it uses SSD. It is by far the single best upgrade you can do. Please make yourself a favour and order a good unit right away (I use Samsung). I sometimes load a VM from a spinning disk and it's SO SLOW compared to a similar VM loaded from solid state.
If you wanna buy a new PC seriously consider AMD though. My kids have Ryzens and they are absurdly fast, they can make their homework so quickly...... so that they can play videogames after
@@AlessioSangalli Agreed, I will make it so.
I'm interested in seeing the grinding of the tool to cut the circlip groove and cutting the groove. Been watchin for it a long time, but haven't seen it yet on youtube.
I'll be using a carbide insert tool from Simtek to cut the grooves and also for making the corrugations in an aluminium mandrel which I'll then plate with zincate then gold then eventuall electroform with copper and machine the OD then finally dissolve the mandrel in sodium hydroxide to leave a gold plated interior with corrugations. It's going to be fun. I hope to be back from the USA on Friday so I can get on with more videos
Great humor from you & assistant. “…whatever that is in real money…” I’ll probably die before the US converts to metric, but what can you expect from folks who can’t even count votes? Thanks for all the excellent videos!
I'm actually a great fan of the US measurement systems. Acre-feet are so much more human-scale than megalitres. Other favourites are "for those listening in monochrome" or "for anyone watching this in the 1950s". Metric is fine for those of us with fewer than twelve toes.
@@MachiningandMicrowaves what is the context of megaliters? I've never heard it used in favor of cubic meters
@@AlessioSangalli Capacity of reservoirs and lakes is the only time I've heard it. Acre-feet wins, my garden is 1.6 acres, so I just imagine water deep enough to flood my boots, and that's an acre-foot. An awful lot of water
i love 3-point bore micrometers
I have a set that covers 6 mm to 50 mm, mostly from ebay. I also have a full set of calibration rings. Big investment, but they help me to hit my tolerances and wreck fewer parts
@@MachiningandMicrowaves So do I, 6-63mm in Mitutoyo with setting rings and also the 87-100mm with setting ring in Mitutoyo. Then 60-70 and 70-80mm in Tesa with setting ring. On the hunt for the Mitutoyos to fill the gap and complete the set. I was also very lucky to get a 2.5-3mm Mitutoyo 2 point bore micrometer too but I doubt I'll complete the 2 point set. I'm also working on the digital bore mic sets in Mitutoyo too, I may have a slight metrology addiction...🤣
PS your smaller bore mic in this video was a Tesa not a Mitutoyo, just for clarity.
Yes, I made an oops there, it's from a set of three in a blue box, so I should have known better, but it was late and I was losing the will to live by that point! I could use one that measures around 68-71 mm for making 3.4 GHz feedhorn barrels, but the required precision means that snap gauges are actually good enough. If I was working on cylinder barrels for steam or infernal combustion engines or something, I'd certainly go for some more. I tend to use gauge pins below 6mm, but my 5.00 to 9.98 mm pins are in 0.02 mm steps which is too coarse at the low end, so I end up working on "how tight does this feel" to get the diameter of the smaller dual-mode feedhorns right. I should really get some pins at intermediate 0.01 mm steps so I can use them as a go/no-go test when boring those antenna parts with the 1.7 mm Simtek boring bar
Now I have a general idea how a company that specializes in making brass shotgun hulls does it. They are not cheap considering most of the brass goes to recycling around $99 dollars for 20 shells and that was 18 years ago. I ordered brass tubing from an east coast supplier in the states to redo a chandelier with polished brass "candlesticks". This stuff gives excellent results. Now to find a three jaw chuck for my Emco Compact 5 lathe. Still lots of projects to complete. This project looks fairly easy to complete. Nice job! What tool did you use to hold the tap wrench in the vertical position? I have one such tap handle with the center dimple on it, now we know what it’s for. 🤓
It's something like this: www.amazon.com/Spring-Center-Guide-Align-threading/dp/B0763KFMB5 simple and low cost, but easy enough to make
The Imperial measurement system was developed by craftsmen for craftsmen, if you know how to correctly apply it makes your projects more accurate and faster.
I've always wondered why a mil/thou isn't divided into twelfths instead of tenths. In most of my work, dimensions are defined in terms of reciprocal time and the speed of light, or parallax seconds of arc, so converting from those natural units into something used to make steam engines or rockets is always an extra step. Luckily I know multiple metrology systems intimately and since the harmonisation of the inch as a metric unit I can flip between systems without any risk of a Mars Climate Orbiter fubar event. I love my inch measuring kit and imperial gauge blocks, but also I find folks who are steeped in the Imperial system have a great sense of humour when I poke gentle fun at it. Long may all human-centric metrology frameworks thrive, it makes the world more interesting. So long as there's an initial negotiation around what a 'mil' refers to and what a 'tenth' is of course. Just don't get me started on electron volts or angstroms or wavenumbers!
Those ancient craftsmen have already switched to metric.
Weebles wobble but they don't fall down!
Wait. Did you have Weebles growing up? 🤷😆
We were too poor to have Weebles, but some of my little sister's friends did. But then they also had clackers. I just had conkers
AS IS Tradition !
Heh heh, I couldn't possibly comment. Have to be careful about cultural appropriation of the traditions of other cultures here!
very interesting RICK WD8ASH
Ok as usual I watch your videos 10 minutes each day because they are so good and I want them to last longer. Now that I'm at the end, may I ask - why not a solution like CEE's tail chuck?
Just a whim, to see how quickly and simply I could make a small-diameter unit with a tiny moment or rotational inertia. Even one of the very small chucks might stress the part during starts and stops. I do have an idea for a better solution using an ER16 collet chuck and better bearings and a hollow MT3 taper so I can hold longer parts without leaving a large unsupported area. I bought a cheap 2.5 inch chuck with a bearing and MT3 taper and bearing that works fairly well for material more that about 1/4 inch but that is mainly for holding the ends of long round waveguide tubes. I might do a CEE/ Max Grant tailstock chuck as well. Right now I'm in Connecticut after doing some filming at a lab in Boston MA for an upcoming video about something very exciting. More filming today, than back to MA tonight.
@@MachiningandMicrowaves if you come to California would you consider a meet and greet?
@@AlessioSangalli I was invited to an event at NASA Ames but my flight was cancelled because of snow at the airport and I would have missed the meeting if I caught the next plane, but this shoot us a collab with a company that has a facility in Arizona and I have friends in CA so it would be fun if I can arrange something one day.
@@MachiningandMicrowaves I am pretty close to Ames :) I go there every once in a while when they have some outreach program.
21:15 was a massive one!
Huge indeed
Chamfers are what separate us from the animals you know.
It's the Wisdom of the Ancients, indeed
So, how many Centipedes in a Banana?
0:59 as is tradition
Three-point bore mic on a drilled hole? I was surprised AIMEE did not have something to say about that.
It's possible I cut out an important step while I was editing. I forgot to press record twice and missed some segments, so a few bits were re-shot. Of course from my perspective, my brain fills in the gaps. This is why I should issue vids to a small review group first for sense-checking. I was already 5 hours late so I missed the evening peak after missing the one on Friday. I'm just no good at being a RUclipsr, there's too much Real Life going on as well. I just did a 3 hour machining job for a project on Tuesday and didn't film ANY of it because of the extra time it would take. I'm working on fitting a lighting rig and slide rails on the machine shop ceiling so I can avoid all of the lighting stands and wires. Might install some 2 inch scaffold pole for a camera rail too. Might as well try to be safe and efficient
Brass , that chit gets everywhere, lol
Wheeeeeee!
Always a good day when there's a chip making a bid for freedom and expressing the joy of flight
Chuck Reference Jaw?
The jaw with the "O" marking on a scroll chuck. It's the one that should be tightened last for best possible concentricity. At the factory, they mark that jaw and tighten it last when grinding the jaws. I did the same when I reground that 8 inch Pratt-Burnerd 3-jaw and it is remarkably consistent and repeatable if I nip up that jaw last. This old lathe was used for production work and the 3-jaw is a bit out of true around 20 mm, so I ground the jaws at 40 mm apart and it is excellent out to the maximum size and down to about 25 mm, then again from 16 mm down to 6 mm. The error is only about a thou (25 micrometres) and is totally consistent. I've tried using a 10 micrometre foil shim on jaw 2 to help centre critical workpieces, but usually I swap to the ER40 collet chuck for parts that are 30 mm or smaller
@@MachiningandMicrowaves Thank you for this new information. I had no idea.
we get it, you watch blondihacks :P
Never heard of her!
10:20 wait I'm confused (and i have used a lathe in too long) I thought you needed 4 jaws to make a part concentric with a hammer
Not making it concentric as such, just making sure the front of the part is aligned with the back part in the chuck. It's a nice soft rawhide hammer and I only needed to take out about 25 um of runout. The minor disaster I had off-camera rather spoiled that, but I realigned it after fixing the disaster and all was good.
@@MachiningandMicrowaves i see thanks. I probably watch too much Abom79 😂
@@AlessioSangalli Watching any Abum is too much.
@@simpleman283 no, his videos are really informative, he's great. He likes to go into details and not rush like many creators that want to keep the video under 10 minutes to maximize engagement or whatever metric (ToT)
@@AlessioSangalli I know all about him. I thought he was great for a while, till I kept watching his older videos & found out more than I needed to know. That is why I call him Abum. He is a good machinist & you can learn a lot from him, but I just can't watch him anymore, disgusting.
6:15 incredible at exactly that time my friend "Dido" sent me a message on Whatsapp so I got the notification covering the RUclips screen for a moment. When it disappeared I had to stop and try to understand what happened and why I still had some.dort of weird circular notification... Plus my friend likes cats
Dido was replying to the dogs who live next-door, who appear elsewhere in this video in off-camera speaking roles. Hard to be sure what the discussion was about, but it sounded important.
@@MachiningandMicrowaves instead my friend Dido (I went to school with him) was telling me he just had the most painful kidney stones, as we are the same age I hope I'm not at risk... His telling of the story was horrific
@@AlessioSangalli Trying to push a ball bearing through a drinking straw one of my friends described it. I had a gallstone trapped in a bile duct and that provided a level of pain that I describe as "interesting". Since then, whenever asked to describe a pain on a scale of 1 to 10, nothing gets above 3 by comparison with that little corn-grain sized stone. Humans are badly designed, especially for things that happen after any offspring have left the nest. Knees are a particularly poor concept.
I was wondering if you have any wisdom pertaining the relative merits of Yahtzee.
We were more of a Mah-Jongg sort of family, so my knowledge of the inner mysteries of the "Y" word is minimal, although I understand that you should never say it three times while looking into a mirror, lest you summon a genie wearing a red cap and safety squints
@@MachiningandMicrowaves But I thought exclaiming that word at the moment of part separation would avert kobolds from the shop.
Yep, yelling MAH-JONGG is not at all as effective. I blame the parents.
How does Amy feel about your infatuation with Quin ?
Just asking for a friend.
Quinn is her role-model and all-round hero
AIMEE disapproves, but then she disapproves of most things I do
@@MachiningandMicrowaves
🤔 I cant help feeling AIMEE can do better for herself ? 🥰
...as long as you get the right half of the internet...
Of course! Simply choose the half that are good at keeping secrets! An elegant and effective solution. You Sir, are a genius. If I had a hat, I would take it off to you.
My left ear is feeling a bit left out...
New camera. Idiot operator. Oh dear. Looks like when using these Rode wireless mics, I forgot to set it to mono record for the workshop, or at least to mix it for mono, or even turn on the second remote mic. I'm not very good at this Youtubing...
Não vejo necessidade disso..
It was just a fun little project to help with workholding of parts too small for a tailstock chuck or travelling steady. I might make an ER 11 or ER 16 version with bearings and an MT3 mount later
Is your DRO calling me a NOB?
My poor DRO is missing a lot of segments these days. It is 40 years old, after all. It tries to make occasional rude words, but there are new missing segments this week. I should take it apart and check the edge connectors on the display. It's seriously old-school, 74 series TTL and lots of analogue discretes, but still perfectly accurate. I asked Newall for a circuit diagram but they said nobody could remember making those units and they had no records. Pity, but I can reverse-engineer it. Sadly a new using to use those old Spherosyn scales is ridiculously expensive. I have a newer version on my Bridgeport but the scales are not compatible. Same tech, with tubes full of steel balls in a stainless tube
Try watching that one next, I didn’t because I understood neither the title or the thumbnail. Some of your content is just way beyond me.
It's always a bit of a risk selecting what RUclips thinks is the "Best for this user" option in an end screen, but "Latest video" isn't a great option, and I'm too indecisive to pick an older video. I'll probably change the link to the upcoming video where I use this little tool, but that will have to wait until I finish editing it.
You guys using the French system of measurement are so hard to understand. Its like everything you do is about 25x smaller than normal.
It's probably relativistic effects. Or Quantum. I have some lovely Starrett inch micrometers and depth mics, plus some Mitutoyo inch groove mics and a set of inch gage blocks. I've almost managed get my brain to work in modulo-25 to read the mics. Today in Boston MA I was talking with someone about parts that were 60 mils. Luckily we agreed terms of engagement at the start if the discussion as sixty of that sort of mil is a whole bunch smaller than two and a quarter inches which is what my head interprets as "60 mills" or 60 mm. I'm perhaps lucky to be comfortable in Imperial and metric systems, but I'm glad I wasn't on the team responsible for the little oooopsie with the Mars Climate Observer satellite.
There are two kinds of people... those whose Governments force the peasants to use Metric and those that landed Man on the Moon!!!
I don't think anyone really cares if anyone really landed on the moon or just took pictures on a movie set to please a President.....nothing significant came of it and at great cost too.
BTW.....more people use Metric than any other quaint measuring system in the World.
brass is not cheep!
Agreed, cheaper than Silver, Platinum, Copper and Titanium though! I bought that piece at a sale for about $15 a few years ago. It was about 14 inches long, so this project was maybe $2 worth. My current buy price for 38 mm CZ121 brass including UK tax is £140 per metre, so 40 mm would cost me £5.60 or $7.15, which isn't cheap, but isn't going to break the bank. Stainless or mild steel would work fine. I used what I had in the "random bits of metal" bin.
@@MachiningandMicrowaves in Australia 38mm brass per meter $400.00
@@donnykiofetzis5775 OUCH!
1 banana is equal 25.4 sillymeters... whatever those are... I do think the most laughable conversions I have ever seen is... Peddinghaus, a German company, makes CNC machinery for processing structural steel. As I used to watch the readout of the Peddinghaus machine that I ran about 30 years ago, I first thought I was seeing a metric scale, but eventually figured out that what I was seeing was an evenly digitized division of 1 foot, or 12 inch, or 304.8 millimeters absolute increment, ticking off as it ran. I know persons like me who are brought up using "imperial", as you call it, measuring find metric units a nuisance, and visa versa... and while I am getting better at mentally calculating the metric system unit equivalents to what I normally use... I hazard to guess that digitizing a 1 foot increment is just as equally annoying mindf#@k to anyone using either system of measurement... LOL, that's German engineering!
See also grads vs degrees!
I thought I'd seen most of the stupid things people do in engineering but storing tool holders on the end of the crosslide beats them all......and compressed air for chip clearing.....oh my.
As Joe Pie said, "Real shops use air". Your concern is noted but rejected as being trivial. What would you prefer, a paintbrush? As for the toolholders on the cross slide, if you fancy making me a nice toolholder rack I'd be most grateful. If that's really the worst practice you've seen then you've led a sheltered life. One day Real Soon Now I'll get a rack set up near the lathe, but there are much more critical items on my to-do list. I acknowledge the minor risk of stringy chips catching one and launching it at me. When the material won't break chips and there is a real danger then I move them back across the shop to the drawer where I keep the rest of the toolholders. I also consider the risk of reaching over the toolpost, but it is low compared with those toolholder racks fixed to the back of the machine. My shop, my risk appetite, but I agree that it is setting a bad example to impressionable young minds.
quatsch
Das ist natürlich alles Unsinn...
@@MachiningandMicrowaves gut gefangen :)