Collets ---- Types, Pros, Cons and General info. Take a Look !
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- เผยแพร่เมื่อ 3 ส.ค. 2018
- This video will show several different types of collets and review the pro's and con's of each one. I'll offer some tips for the type of collet you might want to select if you plan to make a collet chuck for your lathe. The wooden model used in this video is very interesting. Take a Look
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The wooden model keeps it simple ( just right for me) , brilliant teaching.
Thanks. I too am a very visual student. Show me an animation one time and it sticks forever. I think they are very useful to engage everybody watching.
Hi Joe, well "Buy nice, or buy twice"! That's a lesson I learned a very long time ago! It's a tad more, but you do get what you pay for! It's a good lesson!!
Thank you for the shout out. I absolutely did meet you at the Bash but the boring bars came from the other Steve, Steve Barton of Solid Rock Machine. I was good to meet you.
I just went back through my notes and I stand corrected. There is more than one TH-cam channel with the initials SRM and a host named Steve.
Visit their channel at th-cam.com/channels/KPqKYF73sJbFUSzo5dQxtQ.html and check out his line of boring bars. They work great.
Thank you for the time and plywood put into making this; I know both are valuable.
Joe - I always come away amazed at the depth of your knowledge. I appreciate your ability to neither talk down to me or up to me. Thanks for the lesson.
Rex (the retired airline pilot)
Thanks for the comment.
One thing to note about ER collets, if you purchase "Coolant" sealing collets either all steel or rubber sealed, never try to close them on any diameter except nominal. They will get crushed and take a permanent set if the tool diameter is too small. I see it all too many times with the "new guys" constantly destroying good collets simply because they don't know the difference between a regular ER collet and an ER coolant collet.
Excellent presentation. The wood analog is just spectacular. Thanks.
Glad you liked it!
I agree, the wood demonstration gave me a greater understanding of the design features. Thanks!
Really want to thank you for the content you put out. After getting cancer and now I'm being told I have less than a year, it's great for me to come out on my "good" days and tinker in my barn and lathe. I still have most of my my diesel mechanic tools (25 yrs) and I've either traded on some stuff or or just have not found it yet.
Cheers Joe, I really appreciate your knowledge.
I not sure you think I am who I am
LOVE THE ANIMATION it helps to make sense of what goes on in a collet
That indexable collet closing mechanism is awesome
I always think I have a good general knowledge about a topic, until you talk about it and I realize how much I didn't know, lol. keep up the outstanding work, sir!
Hey Joe, love your vids.
You left out a very important part about collets.
ER collets are meant for tool holding, and require the "work" be deep inside the collet. If the work is not deep into the collet, it will have to be over-tightened which can easily damage both the collet and the holder, and will not be secure.
5C collets are meant for work holding, and can be used right out to the very end.
There is a very good reason that work holding options are not available for ER collets - they are not intended for work holding, and using them for work holding should be approached with great caution.
How does this go with certain collets (ie) I have an er32 5mm that is releaved in the back so that it only grips in the front (1/4?) of the collet. Isn't this basically the same as gripping with a piece in the front of a full collet?
Dunno. The only short bored ones I have seen still have a gripping range of 20mm to 25mm (3/4" to 1"), which is abut 2/3 of the total collet depth. My understanding is that those collets are meant for through coolant, and can be prone to slippage unless the correct nut is used and the tool is dead on size.
No idea what a 5mm ER32 collect that only grips 6m (1/4") at the nose is for.
Your demonstration is "Top Drawer"...great teacher.
You are literally the best teacher I have ever seen in my life.
Thats quite a compliment. Thank you.
Every time I think I know what I'm doing, I see another Joe Pie video and ... find out I didn't know it all - heck, didn't even know what I didn't know.
Thanks as always!
Wow, that's saying something coming from you Doug. Anyone who hasn't checked Doug out, you should! He has a channel with some "interesting" projects.... One of which being his NUCLEAR REACTOR he built in his basement shop!! Not even joking!
The Chinesiuim tools and shop building I put together to support my other projects have more than paid for themselves - physics gear isn't cheap from the usual suspects, and I'm off-grid homesteading and have to make some things myself anyway.
But owning all that stuff - most of which "isn't all that bad - it's faithful copies of good USA stuff" - doesn't make you a machinist, not hardly. Make some chips, break some bits, you learn stuff. But with people like Joe out there sharing (and a few others we all know) a lot of things I was doing the hard way and/or by expensive trial and error are now done the JoePi way...and I'm grateful he shares this stuff. A lot of this used to be kinda "guild trade secrets" and hard to find in such an easy to understand and practical form.
His backwards threading trick turned my gunsmithing upside down. Basics of a Parting Tool - and tons more..what can I say? Lots of good stuff we all should know but often don't - yet.
No doubt, I have learned soo much on YT about machining from Joe, Robin, Tom, Tony, Stan, Peter, John, Stefan, and others over the past couple years. Hard to say how much I appreciate their time and effort making vids. I have even been able to show my buddy who owns a very large machine shop a few things he didn't know.
You are the best! I use 5C collets (for my Lathe) and MT2 collets (for my Clausing 8520 Milling Machine) and needed a good description and comparative analysis of ER collets. As usual, you delivered. Thank you and keep doing what you are doing.
I've used ER32 collets on my CNC machines for close to 30 years. As long as the tool is held deep enough they work great. I've been retired 7 years and have an R8 set on the mill and they have always worked well. The 5C collet chuck on the lathe also has been great as long as the work fits well. The 5C chuck has the adjustable back plate and I've adjusted it to very close to perfect. The collets are good also. I recently got an R8 to ER40 chuck for the mill, saves me using a step stool and the collets run very nicely. I got an ER40 chuck for the lathe and I can't get it to run true. It is of the "set tru" type and I can dial it in to near perfect at one depth on the taper but as I move away from that spot it deviates, a lot. Well known importer that has had me go through all sorts of trails, to no avail. They will replace it. I can understand them suspecting I'm an idiot. I owned a manufacturing business for 35 years and know a lot about incompetence. I've followed your videos for a long time.
Nice job on the animation using plywood. Thanks for taking the time to do that. Very clear and informative.
Thanks. Its better than trying to explain it verbally.
This confirms my decision to go ER series, I have ER32 and ER40 for my mill and lathe. They work extremely well and are cheap as chips as a complete set from China. They may not be as fancy as the expensive sets BUT they have only 0.001 runout which in 95% of jobs is adequate. Nicely explained BTW Joe !!
Also, something important to note: ER collets have (slightly) less gripping force if they're gripping towards the bottom of their range. This is because the internal bore diameter doesn't change, you just collapse the space in the slits, so, you no longer have full contact the whole way around a bore. You still have lines of contact the full length of the collet.
Another important thing to note with ER collets, you must use a large portion of the length of the collet (most of the places I've seen list 2/3 the length of the collet) otherwise they will not collapse evenly. You cannot hold very short parts in ER series collets unless you also put something at the back of the collet to make it collapse evenly. This ins not as much of a limitation with 5C type collets.
Right about the different config and gripping precision, Here TG-100 and ER40 are mainly used, sometimes 5C...
I like your demonstration with the mock-up... Well done... ;)
Thanks Pierre.
I spent a lot of money on either the wrong and or crappy and collets till I saw this video. Now I have only 6 and they are brilliant. Thanks Joe
Great animation showing how they work. Enjoyed watching the video.
Once again ... a great video Joe. Thank you for the lesson!
Awesome video! Great visual props.
Excellent explanation, big thumbs up on the animation👍. If I may add, draw bar collets on a lathe are a lot faster to operate, than ring nut type, though there is also front ring fast operating type.
Great presentation, and spider free.
I was wondering about that. Ive seen Hardinge collect speed chucks for 5C and others I think that use a hand-wheel type thing instead of a draw bar, I wasn't sure how that worked, or if there were any drawback to that style. That indexing drawbar seems perfect for production though, very quick, and repeatable pressure.
Just awesome explanation of why. Thanks Joe, now I know what to look for.
One thing I'd add for ER collets is that the like to be balanced ie grip all the way down the length. So don't go gripping short stock at the very tip, otherwise the collet will generate the angular contact and tend to grip at the back of the part.
Simple solution is to insert similar size stock at the rear of the ER collet as well
That demo with the wood was incredible. Thanks for the mind warp. As always.
Man, your instruction is phenomenal!! Thank you!
Always interesting videos, thank you.
Very good explanations and your presentation were very clear about the different kind of collets.
Super clear explanation of what's available and how to choose them. The visual examples of what happens when things are tightened are awesome!
When Joe said animation, I was expecting pixels. Very impressed that he took the time to make props to demonstrate.
Joe,
Very nice overview on the particulars of different collets. Thanks!
Somehow I missed this one last year. Great information as usual 👍 thanks for what you do!
Great job on explaining the differences between collets😀😁👍
As far as teachers go. Joe you are my HERO. I always learn something new from you.
Thanks Joe for another excellent presentation, I picked up a few valuable bits here, cheers from Australia
Great info and great presentation, as always!
I made an ER-16 though-coolant collet holder for my tailstock. Makes drilling deep holes in titanium much less nerve wracking.
Another fantastic tutorial. Thanks Joe!
Great demonstration of how the collets clamp. Thanks!
Glad it was helpful!
@@joepie221 I have some er collets that hold the tool from the narrow end and not the wide flat side. Do you know what these are called?
You can tell a craftsman because he can make his own tools.
Amazing crown collet!👍👍👍
Always enjoy learning from you Sir!!!
Very interesting. Thanks for sharing !
Thank you for putting time, effort and skill in making these excellent videos!
My pleasure!
Great demonstration Joe. This helped me decide on which collet system I will be choosing.
Thanks for sharing.
Glad it was helpful!
Excellent info {as usual] gotta love your style as well Joe. thanks
Outstanding teaching aid to put everything into perspective. A picture is worth a 1000 words.
I learn a topic quicker if I can see an example or application. A tech description is good, but having the how and why really drives it home for me.
Excellent video and especially the animation!!! Once again, you mention things that I probably wouldn’t have thought of in a million years! Lol. Thanks Joe...you’re the man. 👍
great school with gripping demo with wooden planks, without this i would have never understood the gripping effects. you are good master on Grips! Thank you, that was wonderful teaching.
G’day Joe, love the wooden mock-up from the wood shop makes it easy to follow and visualise. Cheers Peter
Again a great presentation. One of the great advantages of sets of ER collets is it will hold any tool size in range. Most collets come in 1mm increments and will hold parts 1mm under nominal. The smallest collets may only have a .5 mm gripping range. For inch sized collets the increments are 1/32 and will hold 1/32 under nominal.
Great video and great explanation using props Big Thanks
Thanks again for your time that was well done even Mr Pete would be impressed.
Joe,
A concise presentation. Thanks.
Tony
Great vid Joe. Thanks for sharing
Hi Joe, I use ER collets up to ER40 in preference to scroll or independent chucks to hold work pieces in the lathe spindle. Sometimes the amount available to hold may be only a few millimetres. When it is tightened down, the collet will not remain parallel so the narrow end of the collet will close further than the wide end resulting in run out and the part not being gripped true or securely.
To overcome this I insert a short billet, like a thick washer or an off cut, of the same diameter as the work piece in the narrow end of the collet which enables the collet to be fully tightened and minimises run out and the possibility of the part moving or worse coming adrift.
I do the same, especially if the stock is only a short length I have stubs of same dia. stock in the collet box as a 'ready for use' item.
Joe, love all your videos. You are the best teacher!
Excellent educational material as always!
Great information, presentation excellent. Thanks.
Great video, especially the explanation with the wooden mock-up. Thanks
Glad it was helpful! the wood models really help it sink in.
I loved the mock-up Joe! Great discussion on collets that everyone uses. Thanks for sharing.
Hey Guy. Thanks for stopping by. Still waiting on that visit.
Very good explanation and demonstration of 5c, R8 and ER collets. Thanks for taking the time out of your busy day to make these videos.
Very nice presentation and explanation. Thanks!
I watched this vid after I bought a full set of 5C collets. Ouch! However , I do appreciate the excellent content and clear presentation that you provide. Thanks Joe.
Fantastic video once again! Thanks Joe. I really enjoy your approach to machine shop issues. You have a different, highly technical approach that I enjoy. This video explained some of the issues that I have come across. Keep up the great work.
This is all so helpful for the guy with a small shop! Few can afford 5 axis machining centers - I think even those guys can benefit.
Great stuff! :)
Excellent tutorial!
I had no idea about the issue with 5C collet's that you demonstrated so well with that mock up.
Thank you
Thank you Joe for a very informative video. It will really help me in setting up my small home shop, thanks again!
Perfect simple explanation and demo of collets Joe!
Really liked the oversize wood demonstration. Visual aids like that are absolutely superb for proper understanding of a subject.
I have learnt so much from you!
Thank you 🙏
This has been excellent information! Thanks so much for your time.
Glad it was helpful!
Excellent explanation and visual aids.
Awesome job on all of your videos, Joe.
Yet another excellent video. Thank you.
Thanks so much for sharing some of what you know- always inspires me to get out and make chips!
As always nicely done. Thank you.
Absolutely fenomenal demo Joe! I just got a lathe and was wondering what kind of collet system to choose. It still needs a lot of work but when I get it running I give that miniature lathe kit a try!! Thanks again for the great video, take care!!
Simple & very informative best on utube.
I can appreciate that visualization. That was well planned out. Very good 👍🏼
Glad you liked it!
Nicely done, very helpful to me.
Excellent info. Love my er40.
Cool man, Ya I'm designing a tool which needs a quick release chuck/collet/*whatever it just needs to grip a rod* So >>> this video is very helpful as now I understand more and won't have to discover these intricacies which you share. Wisdom and practical experience are king.
Great video Joe, thank you.
Joe I always learn from your videos, thank you !! Mark
Just got done reading about this, thanks for the visual of what they were saying in the book. Now I understand it better, yup totally new to this... thanks.
Great video and collet action demo Joe!
ATB, Robin
Joe, great basic vid. It answered many questions for me.
Thanks for the video. Just had to order a couple of collets today.
Nice demonstration at the end! Lots to think about now...
It helps to understand whats going on.
Really good info and demonstration (animation) with the wood. Feeling better about my decision to obtain my ER32 inch & metric collet sets. Thanks Joe ~ Richard
Good video Joe. I made an ER40 collet chuck for lathe which goes upto 32mm with oversize collets, use it most of the time. One problem with ER, it needs the full length engagement, I often have to put something in the back to stop it collapsing if my work peice is short.
The crown collet ideal looks ideal. I want to make something to hold short lengths of bar upto 100mm diameter.
Invaluable knowledge expertly presented that I'll remember for years. The wooden models were important lecture aids for illustrating the key points. Thank you for distilling the key points into a succinct and excellent presentation.
Thanks Joe, very informative.
Loved your animation 😊
Thanks Mr Pieczynski. This is a very helpful video to anyone who is tired of slipping drill bits. Ah yes, i'm starting with an ER20 collet holder and some mid range collets, wish me luck.
GREAT VIDEO...can’t learn this from a book....thanks for your time/efforts in producing this vid....ATB
Excellent video. Thanks again,
Good info Joe! Thank you!