Lathe Chuck Maintenance - Get the most from cheap import chucks!
ฝัง
- เผยแพร่เมื่อ 8 เม.ย. 2022
- This episode on Blondihacks, I’m cleaning and inspecting a cheap import chuck! Exclusive videos, drawings, models & plans available on Patreon!
/ quinndunki
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Carful, Billy will be after you!
She;s steeling your best material. Mr Crispine
Maybe this has been going on for years, but i'm appreciating consistent videos every week. The video editing is top notch too, this means quinn is spending substantial hours every week for this. Thank you!
You’re welcome! Haven’t missed a week in the entire 3.5 years of this channel. Thank YOU for watching! ☺️
@@Blondihacks Impressive attendance Quinn, teachers favourite no doubt. Yes, excellent content, technically and informative, the jokes are on fire 🔥.
All the best for the next 3.5 years.
Regards John Quinn.
She has a guy named CHUCK doing that I guess ! Lol 😂
This is seriously a highlight of every Saturday for me!
Off-center slots on the screws really give it that artisanal touch.
A clear sign that they were hand made.
12:28 and here is why they give us chuck safety covers - to protect us form oil :)
Wow, Mr. Crispin's Brother's toothbrush really gets around!
It's the only one that's good enough for the job.
you can use paper bag over the Chuck then run it for high-speed for a few minutes that will catch all the extra oil
Like that idea 💡 . Brilliant.
Love your sense of humor...mr. Crispin's brothers toothbrush....great👌😊
I always get a good chuckle within the first minute of your videos (H brand). Yes, I am a fan of "Dad jokes." Thank you for improving my Saturdays!
So you've done things in: automotive, electronics, pinball cabinets, model trains, Warhammer, model steam, and probably other things I'm not remembering, all on top of machining. You live quite a full and interesting life :) I'm kinda jealous.
I have an unfortunate addiction to expensive hobbies. 😅
@@Blondihacks what hobbies aren't?
Wait.. there are people who don't have more hobbies than time?
@@Blondihacks Yeah, then don't take a "discovery flight" in a small airplane.
@@Blondihacks I too have expensive hobbies. *pulls out Magic The Gathering deck*
"Preparations A through G were a complete failure. I present to you, Preparation H!" 🤣
The Chuck looks and works like new now. Don’t forget to give the tooth brush back to me crispins brother.
Talent will hit the target. Genius can see the targets that no one else sees. -And you have a gift for showing us the obvious that we never thought of! This kind of maintenance should be on everyone's calendar. Thank you!
I’m amazed Mr Crispin’s brother’s toothbrush made it all the way across the pond. 🤔
I strip, clean, oil and reassemble my 3 jaw Pratt Burnerd chuck about once a year, it gets full of muck even with the relatively little use my lathe gets. Especially if you ever turn brass, those chips get in everywhere.
Brass chips are the worst. I find them in my food. 🤣
@@Blondihacks Well, copper is necessary for proper function of the human body, so no worries.
@@ChristopherHallett No, I bought it used to go with my DSG 13 by 42, a metric 250mm 3 jaw, then I bought two new sets of jaws for it.
@@Blondihacks Not so loud, everyone will want some🤦♂️
Another thing I use for cleaning small parts and getting into tight spaces is bamboo skewers from supermarket
Orange sticks get used, or maybe now were used, in the film industry to clean the insides of cameras. I wonder if they'd be useful for removing small bits of metal.
It just wouldn't be the weekend without a Blondiehacks video!
Ever since you bought that chuck, I’ve been waiting for a nod to the ToT comment when he bought a new chuck “You thought I'd bought an F or perhaps a G…but No, I bought an H”!! LOL
This chuck came with my lathe. It’s the same one that seemingly every import lathe comes with
Great tutorial Quinn,
I think every Lathe user should have a Chucking Day once a year ! :)
Good video. ⭐⭐⭐⭐ A cheap Chinesium Chuck -- can sure take a great deal of deburring - I must have spent an hour on mine. But it was so much smoother, and less crunchy afterward.
That screw head was a beauty.
In mine, that inner gear was a bear to remove and re-intall. The inner shaft was not uniformly machined.
Thankfully my cheap chuck can get to less than a thou' - luck of the draw.
Funny, when reassembling I didn't realize that each jaw had a specific location. Of course immediately realized after turning them into to a mismatch.
When I dismantled the old 4 jaw chuck that came with mine - I found difficulty removing one of the 4 bolts to the backing -- it was epoxied in place !
Turns out the threaded hole for that one had a broken tap in it. So the guy that bought it originally really got Hosed by a seller.
Could not get that piece of tap out of there - did not effect the runout; but will make me concerned under heavy loads.
Cracked me up with the Mr Crispin reference.
That joke was for a limited, but prestigious, audience
Brilliant instructive videos with humour...a video on drill sharpening would be much appreciated, many thanks
A big collector of chips in chucks is the gap between the chuck and backing plate. A piece of 1/4" thick Ethafoam (polyethylene packing foam) cut to shape will compress into the gap when the chuck is reassembled. It's resistant to coolant and oils and will keep chips and swarf from accumulating there.
I have used a good old skwirt of
No more gaps....which painters use in cracks...you can always get it out in a few years
I've got a rotary table with the same issues. I KNOW it needs to be pulled apart and dressed but I've been putting it off.
You've convinced me to get on with it before I have to delay an important job while I do it.
Mr.Crispin's poor brother...but what he doesn't know can't hurt him. Can it?.
Quinn, have you ever watched 'ThatLazyMachinist'? He's like the Canadian version of Mr. Lyle, a retired shop teacher who is very knowledgeable and an excellent teacher with a large body of work, but is yet to be discovered by the home machinist genre. He's really great to watch.
Q-Tips are quite useful for “shopping” a pinball machine. Especially for cleaning the black dust from the playfield lamp inserts. Well done Quinn.
I also use "q tips" for cleaning. In the UK we call them cotton buds. I also find pipe cleaners very handy for cleaning too. Mr Crispins brother recently got bitten by a lion, so I don't think he will need his toothbrush for a while.
This advice applies to most cheap tools, including hand tools. I have numerous pairs of pliers I have bought for the lowest price that have been turned from unusable scratchy things that hurt to use to tools that are a joy to use by just scrubbing them down with WD40 or your solvent of choice and lubrication. Oil is apparently an expensive luxury to a segment of the tool making world.
Q-tips are an under utilized item when cleaning, in my opinion anyways. I like to use the single cotton end ones that are 6” long with a wooden stems. Better leverage and longer reach. Great video.
I’ll have to remember that, especially because I like to chuck Q-tips on a drill.
Thanks for another informative and useful video Quinn! It would not have occurred to me to use WD-40 for cleaning nor to use way oil in a chuck. I just cleaned my three drawer chuck per your recommendations.
As I look around my workshop I see lots of tools and supplies that were inspired by you! You rock! Thanks for all your great videos.
WD-40 is mostly mineral spirits (>50%) and refined mineral oils (> 25%) so it is a good choice.
Hi Quinn If you machine the backing plate slightly larger so that the spigot is a loose fit with the chuck then it is possible to achieve zero runout. Just loosen the three holding bolts and tap the chuck to get zero runout. After it is centered tighten the three mounting bolts. Full disclosure, that is what I have read in a lathe manual.
Most absolutely excellent as always -> objective -> planning -> execution -> outcome - I really appreciate the time and effort required so a HUGE thank you
‘Cheap Chuck’, the guy who never pays for his round at the bar! 😂
I decided (after owning it for almost a year) to measure the runout on the 3-jaw chuck on my LMS 7x14" lathe by chucking a large end mill in it and found it was 4-5 thousands. First test was to move the jaws to different positions but the runout stayed the same. The runout on the chuck body was very good, less than a thousand.
I identified which jaw was opposite the high side and pulled it, smeared layout bluing on the gripping surface and picked a face mill whose diameter most closely matched the arc of the jaw. I gave the jaw a couple careful strokes with 320 paper wrapped around the end mill and checked runout. I kept repeating this until runout got down to a thousand, and at that point it just seemed to move around as I would give the low jaw another stroke or 2, so I called it good enough!. This doesn't help runout for the internal holding jaws, but the majority of my turning seems to use the external gripping jaw surface and besides, I have nothing I can use to check egocentricity for the other jaw surfaces. So IMHO, an hour well spent!
Yeah Mr Crispin Mention!!
If you tighten the nominating pinion, or "zero" pinion last, you may get less run out. It's the last pinion tightened when the jaws were ground at the factory 😊.
Cheers!
I used Q-tips just yesterday for cleaning out a part. I cannot imagine why someone would laugh at you for it. They work excellent.
Cool! I learned something about how lathe chucks are built.
with an old dog that can't learn new tricks you can remind us of the ones we learned a while back and forget to use!!!!
God Bless.
I not long watched this video and I gave my 3 jaw chuck a service and surprised how well it is still considering the work it's gone through for 12 years old. So thanks for the video. I'll look at the 4 jaw chuck and the live centre over the next few days.
3 in 1 makes a garage door lubricant that has many more uses. Nice video, thanks 👍
The change in run-out may actually depend on which pinion you use to tighten the jaws. If the scroll is a slightly loose fit in the chuck body then, depending on which pinion is used to tighten it, the scroll (and jaws) will be pushed to one side or another.
Thanks Toots, (G'Day from Melbourne Australia)
youtubers and integrity. I honestly respect the majority of the channels I watch, you all seem like decent people who put in an effort to make a fun and quality video. On the other hand, if you watch some of the "famous" people channels, say SNL for instance, you may tend to notice the creepy, almost not human nature of the comment sections or it could be those smiling faces are run through a translator for someone who may speak Chinese or Farci for their native language or it could just be plain old bots. I dunno but I have noticed it on a number of those types of people's submissions. What is a few hundred or a thousand for the bot account when it can earn you millions? so yeah, not my thing, don't lie to me like that.
thank you for the videos, Quinn. have a good one.
These kinds of things are a interesting case study in cost minimization
Every time I see you scrubbing with a toothbrush it reminds me to go back and watch the “Ratchet toothbrush” video. Thanks for sharing!
Quinn, Fun an informative as always. Love you dry sense of humor and tricks, very funny. Reading comments I see no one mentioning non-petroleum, water based cleaners. I find myself using them more and more as they are so cheap. I wipe as much gunk as I can first, then in complete violation of all safety rules hit the parts with compressed air before moving on to the grease cutting cleaner of choice. My current favorite is “Super Clean” but I’ve tried a number and they all work pretty well. By using them full strength in combination with various brushes and sometimes, depending on the job, with a cheap pressure washer and/or hot water, I can get things so clean that it takes only a little WD-40 to do the final details and prevent any oxidation. Anyway, just a thought. Love all your lessons and adventures. Cheers, Will
Ya, I was chuckling. Kind of a comfortable feeling of unanimity in this individualized world.
Q-tips with wooden shafts are even better!
Good afternoon Quinni. First a Thank you. I cut my teeth on very large Lathes by Cincinnati, Milacron & LeBlonde, Bridgeport Mills. I didnt even know these smaller machines existed until a few months ago. Been a Minute. Your channel has been both informative and enjoyable, especially the Boring parts! ( Nice touch ) My channel been dormant for health reasons and a cross country move. You helped me decide on what to buy for my Small engine shop. Bolton ZX45A MIll, and Weiss WBL290F Lathe. Ive got a few hundred hours of tube time watching you & others. I am fascinated by some of the machine tooling builds you and others do. At the GE carbide shop, if you couldn't manufacture a part in the machine shop you couldn't work there, Kudos to you and the rest of the Mini Machine Operators. Be seeing ya , God Bless and Thanks again. Poppa Phill ps: hope to have the channel up and running Mid May.
My Sprocket the Riveter shirt showed up recently; I am very well pleased with it 😊
This has become the best part of my Saturday.
It's a rare thing to hear a Polish brand mentioned as a synonym of quality, go Bison! 😁 Awesome video as always 👍👍👍🔥🔥🔥🔥
Poland makes awesome machine tooling 😄
Some of my viewers have recommended your channel, I’m a complete novice and just got a Myford ML7 so ready for some binge watching to soak up some knowledge, new subscriber 👍
Great video! Most 3 jaw chucks have a marked pinion that will give you the best concentricity. Yours appears to be the one marked “0”. Some chucks like Buck Adjust-tru only have one exposed pinion to eliminate the chance of error. Try it, your chuck is probably more accurate and repeatable than you think. As always, thanks for sharing!
@@bobweiram6321 No, only tighten the marked pinion always. This would give you the least amount of runout the chuck can offer. The factory typically trues the jaws at final assembly with only the marked pinion. Hope this helps.
Sage advice. Probably complied with roughly as often as men stop to ask directions when driving 😉.
You can (if you dare), use the "poor man's griptru" trick if for some reason your full set of high precision collets won't do the job. Machine between
.005" and .010" off the diameter of that precious register on the backplate 😱. When you attach the chuck to the backplate, just nip the bolts (for now). Mount the chuck on the lathe spindle and insert a piece of stock with the diameter you want to run true in the chuck jaws, tightening the jaws as normal. Now, using an indicator and a soft-faced hammer, tappy-tap-tap the chuck until your workpiece runs true. NOW tighten the retaining bolts holding chuck to baseplate - the friction between the faces of chuck and baseplate will cope with just about anything a hobbyist would knowingly ask of their machine.
I knew I made that backplate an easy fit for a reason :)
Love your work Quinn!
Thanks for the vid. It motivated me to take apart the 4” chuck on my Little Machine Shop 7350 mini lathe. It was similar, looked pretty darn good inside. But I feel better having it all cleaned up.
I've got some Bernard chucks and they're a good un...
And some very old Taylor chucks that are getting quite rare and collectable now...
🇬🇧🙂
Good information , I have an Atlas Commercial branded as Craftsman made in 1970 , will have to look at cleaning the 3 jaw chuck , thank you Quinn for the great video
My lathe chuck is now so much smoother, thanks Quinn but I wish to complain that I then had to strip down the CNC, the mitre saw and vice and came in for dinner smelling, in the words of my better half, “like an industrial museum”😂
Great video. I really liked the runout check at the end. Thanks for the video.
On my chunk they even saved the money for a back plate :-) This really helps to reduce the chips in front of the Lathe, as they are now inside the chuck ;-)
Lol I've got the same chuck and after cleaning Deburring reassembly i got lucky with just under 1 thousand run out on 3/4 pin and after testing various sizes etc worst I got was 3 thousandth so I left it alone and just keep it cleaned and oiled and don't wanna take it apart again and upset anything 😂😂😂
Nothing like a bit of machine maintenance, thanks for sharing
Newbie here so thank you for the info on the chuck.
Thanks - I am now motivated to strip and clean my prestigious H-chuck 🤩
😯 Hey Quinn! - You gotta see the 'most accurate' lathe chuck restoration ever!
- Old Iron Machine Works - Big AZZ 6 Jaw Scroll Chuck Part 1, 2
This lady is a good teacher.
Thanks for that Quinn, I have just cleaned my old Clarke CL430 lathe chuck and its now running only 0.02mm out which I think is ok for a cheap lathe, now just got to master my surface finish.
Just got an old South Bend with a dirty chuck. 2am and you're making me stay up..lol. Thanks.
If something works for you (q tips , etc ) then it's not anything people can laugh at. It works . That's how all new ideas come into being .
Air tool tight, AKA "farm tight." Machining a lot of brass seems to make it necessary to clean the chuck even more frequently. That stuff goes everywhere! The pins for the pinions aren't really set screws; just locator pins that are threaded to keep them mostly in the same place and to serve as thrust "bearings" for the pinion gears. Don't diss that "H" brand chuck. It's the ever popular Hua Pai brand! Lots of Grizzlies come with the same brand of chucks. Seriously, it's amazing what a good cleaning and debur will do for cheap tooling. Be sure to clean the WD-40 out with mineral spirits. WD-40 can turn into primordial goo given half a chance.
Another superb tutorial, Quinn. I have a 3" chuck from an old mini lathe that I use for small parts. Instead of making a standard back plate for it, I made a back plate with a 1.5" stem on it which I can mount in my 4 jaw allowing me to precisely dial in parts mounted in the 3 jaw with the 4 jaw. Chucks in tandem. Anyway, that Chinese 3 incher is in desperate need of a good cleaning. You've motivated me.
well hello Quinn , nice job! the noting the alignment procedure. I'm needing to do that on a couple of my machines.
Another excellent, useful and clear video.
Cleanig out Lathe Chucks is always a good idea. If you're not shure which lubricant to use, take a look at the recommendations of the manufacturer.
And if he don't have any, take a look what manufacturers of good quality Chucks recommend.
Most of them recommend some Molykote or similar products that are suitable for high shearing forces and give a relative dry surface.
Oil cant't maintain a separation under high pressure as you can see on the wear marks on the pinions.
I don't know how much it will help, but I know that with locksmithing, I was told to always use a dry lubricant for a lock to avoid it taking dirt and dust and turning it in to a grinding paste. Granted, that may be more useful with things made out of brass moving with hopefully low pressures, but it might be something to look in to
I saw similar advice with regard to lubricating guide bars on smallish (say 3018-type) mills, it supposedly does the job but doesn't attract dust or anything else...
7:20 Qtips are handy, but they can leave cotton strands behind which can be a problem in some situations. I follow up with brake cleaner.
Prep H works well also
Perfect timing. I was just checking the runout on my 3-Jaw...getting around +/-0.0025. It is a Taiwan precision chuck from PM, and I think it should be better. But I hadn't looked at the specs and had to leave the machine a couple of hours ago worrying about the chuck. And I stumbled into this video by luck. I will sleep better. THANK YOU.
I suspect those are zero pinions. also known as O-pinions.
🤦♀️
Yes, and they’re usually quite cheap and easy to get.
Typically everybody has one but Quinn has three! Tubers just have to go the extra, don't they?
The way you do it really helps my daily work..
I did it and you are more detailed..
Re: face full of oil spots
I found cutting the bottom off a plastic gallon jug & fixing it over the freshly lubed chuck works real well.
Cheers Quinn ,I know have Monday mornings job .list
1. Make coffee
2. Retire to the cave
3. Service 3 and 4 jaw chucks
And my chuck made yours look like a top of the range Swiss watchmaking one. Now mibes nice cheers Quinn
Thanks for the vid. I have been lazy about getting into the back of my precision cost engineered chuck made of the finest Chinesium but I suppose I'll get to it now that you've prodded. Just on a side note, that safety shield holding bar, from which you have removed the all-unimportant shield always used to get in my way when using a hacksaw to finish parting. If you open up the face plate on the console above it, you can very easily remove it without impacting anything and the safety switch latches closed when the bar is removed.
As someone who thought the zerk on my chuck meant it was a sealed lube system the first time I set up a lathe, that "wiping it off your face" comment gave me flashbacks. 😅 So much oil flinging.
Well i have to say that was interesting, after watching your video i decided to clean my chuck being a second hand lathe and the dam thing is quite spot on i thaught it definitely deserves it.
Let's say yours was quite clean, thank you for the great video.
It also helps to use different pinions holes when you try to find a “happy” run-out position.
Personally I find that way oil makes my skin feel smoother. Tastes great too!
A little WD-40 for shaving irritation works fine and impresses the ladies as well!
Thanks for showing his. I imagine my NOVA wood lathe chucks are in the same condition after a few years. I know wood dust does not wear on the chuck parts like metal bits will but they can gum things up and make it stiff to adjust. So I think I will tear down one and see what the internal condition is and clean it up.
02:45 I think they use old motor oil as a way to dispose of the waste. Ship the waste overseas as lubricant and you don't have to process it as hazardous waste. I bet they do the same with that smelly paint that seems to only come from China.
Thanks for the video. Liked your q tips idea.
Another great video and one that I need to do myself 👍
Back in the early 2000s the government decided to close and sell off the Long Beach Naval Ship Yard and all of the equipment and machines. This included over 100 lathes ranging from 3' to 90'.
In their brilliance someone decided to take the chucks and various heads off ALL the machines and put them together separate from their respective machines. These are all very high precision tapper ground chucks that are factory matched to the machine as it is built.
We bought 2 American 20 speed lathes and absolutely played hell trying to get the chucks right.
Great Video Quinn, thank you.
Thanks Quinn I did that to my 3 jaw about 3 years back but it needs it a lot again. Unfortunately it is STILL cold here and my shop is not heated... sigh... count me a lathe voyeur till it warms up :)
I rubber band some paper towels onto the chucks after lubing and spin them up.. Works well.
Oozing quality, extremely typically!
Maybe one day we see the video 'Blondie gets a new chuck" !
I found my self centering chuck has ONE pinion (that I marked) the greatly improves runout and repeatability.
Quinn , very informative video F.Y.I the shop I work at rebuilds air brake valves and they use industry Q-Tips every day because they work well cleaning the very small passage ways ....
Great video and that thumbnail had me reeling, good job!!