Very nicely done CàLem! The front locknut will influence the runout of the nose even if all the parts are perfect. It is the squareness of the pressure face of the nut and the parallelism of the spacers that causes a deflection of the nose. By lapping the pressure face of the nut to remove material at the low point of tir when measuring on the OD of the nose you can get the nose to run true. You need to keep the nut face flat while altering the angle of the face. Also as you remove material from the nut face the tightened nut position keeps changing. This makes the process very difficult and tedious but is a skill that experienced spindle rebuilders must master. ATB, Uncle Robin
3 роки тому+3
Thanks unlce Robin I did notice that on your mill bearings repalcing. Never tried lapping before. Definitely will get some compounds and mess around soon 🤓
Hello gentlemen, can the problem also be caused by the type of collet used? When tightening on this type of collet, you keep the diameter on one end as it is, while diminishing it at the slotted end. The taper consequently will vary, the more so when you have to tighten more. I would prefer ER collets for this reason. They have their slots alternatingly running front to back and back to front, so the taper is more likely to remain constant and will settle against the receiving taper in your arbor even if either is a minute of angle out of spec. Have a nice day!
@@Calligraphybooster I agree with your comments about collet style but I am talking about the runout of the collet seat surface not the tool shank in a collet.
You did great! Eliminating runout of anything less than .001 mm on hardened parts is always tricky, and usually leads to more headaches than it's worth. Great Job on showing your engineering skills, Ca Lem!
Shops in CT around me would pay this man a handsome amount to be their tool maker. Seems every shop has been looking for one for years. Hope these skills are providing you a comfortable living.
I'm a 75 year old spent many years working in aircraft machine shop in UK....your skills with manual machines only remind me of those days... Thing's changed with CNC tool's... Never give up on yourself, your dreams and aspirations, Good luck with everything you do.
One of my tenants has a bunch of CNC's in his shop. Not one person in the shop can run a manual mill. They're more computer programmers than machinists if you ask me. They still make quality parts, but how they get to those parts is a completely different world. I'm not sure they could make anything by hand. At the same time though they can make parts far more complicated than any manual Machinist could dream of.
I've been thinking about building a powered tool post spindle for a while, for grinding and milling on the lathe. Yours is my favorite design - in particular, the ease with which the belt can be tensioned and the motor swapped out is very appealing. Bravo!
Your engineering ability is always a pleasure to watch... your video and editing skills get better and better! The extra little funny touches really made me chuckle. Thank you so much.
I just found your channel. I must say: I am quite impressed with the way you think and the way you learn by doing and making mistakes. Mistake are golden! Great job and hope to join you on more of your journey. You are very talented. I'm from America were we buy everything!
Gday CàLem, awesome job, the runout in the spindle is is next to zero, brilliant design and there’s many of uses, I ground the MT 3 spindle in the universal head in the Cincinnati with a bench grinder mounted to the table, made an arbor extension with a stone and went for it, very slow job but got the run out down under a thou, pure luck I think mate, great video as always, hopefully you guys will be out of lockdown soon, take care, Cheers
I did the same in Greece. I holded it on Multifix B. As stone I use 100mm. As motor an angle grinder Flex 1400w, 2500-7500rpm. Front bearings 52/20 Back bearings 42/15 (2 pieces in both sides). Works great without chater ! Thank you for your ideas ! Regards from Greece
Once again another amazing project. You my friend are truly inspirational. Every time I watch you work I get the itch to get into the shop. Great Job!!! Thanks for Sharing...
6:34 and 6:41 - CaLem demonstrates the world's strongest thumbs . . . 18:20 CaLem notices his error and uses the arbor press. [ keep up the good work! . . . a lot of people enjoy watching you work, it's better than getting out of bed and doing it ourselves ]
The large mass between bearings was a puzzler; I had to run it thru my brain several times to find the sense of it, Don't recall seeing it on other spindle grinders,. Don't know if I was supposed to smile at the clunking noise but I did LOL TY 4 sharing
Look into industrial sewing machine motors: fully enclosed, powerful, compact and silent. They also last "forever". You may also use a different pulley ratio to increase spindle speed.
I built a really simple holder for a airdriven 20€ grinder to grid some chucks. Worked well. The only problem was the massive air consumption, which lead to a noticable change in rpm and believe it or not, in grinding disc diameter. I had to ensure that the final pass was always done with a full tank of air or it would not cut material after the previous cuts.
"Material"… no "s", my friend. I love your videos. I don't have the machinery that you have… and you make it really tough, and I think I'll cry sometimes? 😁 No… I'm kinda kidding. You make it look so easy, and I'm amazed at how things turn out so perfectly! I'd take the mistakes that you make from time to time & brag my ass off, after having made them… is what I'd settle for! Thank you, for sharing!
Great video (as always), as others also said in the comments, so good that you also show the motors that did not quite cut it, learning for all of us. And I´m super impressed how you stopped the lathe with the strength of your hand... ;)
The rear bearing arrangement needs a wavy washer for preload and to allow for shaft expansion
3 роки тому+2
What you said is mostly for regular bearings application. Or angular contact bearings but different type of set up compare to mine. Not wavy spring, it should be a number of coil spring and thrust washer, precision made, properly set up. If not, it wont worth the price and whats angular contact bearing made for.
It is always a joyful experience watching you work! Thank you for sharing. If it was possible, maybe there is a constant-speed motor controller somewhere, some day. It could increase the power when it sees the motor is slowing down.
Great skill, as always. I suggest building guards for the stone and the belt. At those speeds, a face shield might not be enough in the case of serious failure. And having a piece of the stone embedding itself in a hand/arm/chest or getting a whip from a belt thread is not much fun, either. If you want to use induction motors (like the two you tried first) you'll need to use a VFD, otherwise you're limited to the mains frequency, i.e. 3000 rpm for 50 Hz. Using pulleys would to increase speed reduces torque, requiring an impractically large motor. Regular 50 Hz induction motors usually work fine at 100 Hz (I use this setup on my mill).
The best way to protect yourself is to ensure that, as much as possible, you keep your body and anything else important out of the plane of rotation of the grinder. I always keep myself as far as possible out of the plane of rotation when I am using any rotating machine. Personal protective equipment is important, but it is in the third level of safety, first level, is a safe workplace, this includes the machine itself, ingress and egress routes, correct unobstructed working space, machine maintenance, etc. The second level is proper training, and the third level includes personal protective equipment and "magic". Magic is things you can't see but can only assume are working, this includes things like stop-saws, earth leakage breakers (core balance devices, and the myriad of other names that have been used for earth leakage breakers) - WARNING these only protect you if you are connected to earth, if you are insulated from earth and become a load across a high voltage circuit, the breaker will not trip and you will be toast. It is amazing how many people seem to not know this serious issue.
The spindle was so great. Amazing publish. The studies that you made about the spindle was very fine. I don't wanna be boring but, in my opinion, I do believe you can put less speed on the milling process. The motor could be assembled on the shaft by helicoidal gears. This device is amazing, don't through away. Perseverance my friend.
Always like your projects! It occurred to me that you might balance the axle. The meat you left in the middle is also where you vould take away a fraction of material.
getting back from vacation and i really enjoyed the project.... Also I understand you fine, please do more verbal commits explaining your thoughts..Roger Fossette middle ga
Xof course, great project as always 👍🏻👍🏻 At 8:15 : the inner spacing rings in between the two sets of bearings are useless. The tightening force goes from the inner ring of one bearing, through its balls, then the outer ring, the spacer, the other outer ring of the twin bearing, the balls and the inner ring.
Nice! Maybe you can makevitbwork fir now by dressing the wheel into a cup wheel, then you have the rpm and maybe with the thinner contact band the motor can keep up without stalling. Great video as always
The motor trick I use is brushless E bike motors. They run at 24 to 48 volts so you need a power supply but they're cheap. They run very smooth but only about 3k rpm so you have to run a different pully system. Thanks for the video.
Was as high quality project and video as I was expecting Ca Lem! By the way, did you end up finding some more multifix tool holders? Also when did you pick up an optical comparator? You may have shown this in your prior vids but I can't recall it. Your workshop is really getting well equipped now, between the nice machines / tools you are buying and restoring, plus the stuff you are making! Love your work
3 роки тому+12
Thank you man. I got some holders last year but never feel enough of them. pick up an comparator last few months. never got a change to give it some "spa" works.
OOOH!! CA is back!! a HUGE thumbsup immediatly,and it is VERY nice to se you again. i was actualy thinking of you about 2 days ago "when will he,if ever,return?" nice to se you back again ,sir. ** did notice now that u actualy made 2 vids that i completley missed**
Great seeing another project. Stay safe, and hope to see more of you soon.
Man the way you make stuff with recycled parts.... It just amazes me everytime !
Very nicely done CàLem! The front locknut will influence the runout of the nose even if all the parts are perfect. It is the squareness of the pressure face of the nut and the parallelism of the spacers that causes a deflection of the nose. By lapping the pressure face of the nut to remove material at the low point of tir when measuring on the OD of the nose you can get the nose to run true. You need to keep the nut face flat while altering the angle of the face. Also as you remove material from the nut face the tightened nut position keeps changing. This makes the process very difficult and tedious but is a skill that experienced spindle rebuilders must master.
ATB, Uncle Robin
Thanks unlce Robin
I did notice that on your mill bearings repalcing. Never tried lapping before. Definitely will get some compounds and mess around soon 🤓
Hello gentlemen, can the problem also be caused by the type of collet used? When tightening on this type of collet, you keep the diameter on one end as it is, while diminishing it at the slotted end. The taper consequently will vary, the more so when you have to tighten more. I would prefer ER collets for this reason. They have their slots alternatingly running front to back and back to front, so the taper is more likely to remain constant and will settle against the receiving taper in your arbor even if either is a minute of angle out of spec.
Have a nice day!
@@Calligraphybooster I agree with your comments about collet style but I am talking about the runout of the collet seat surface not the tool shank in a collet.
-thanks, I got you wrong😶.
You did great! Eliminating runout of anything less than .001 mm on hardened parts is always tricky, and usually leads to more headaches than it's worth. Great Job on showing your engineering skills, Ca Lem!
When you find the correct motor, you've got it sorted, all the hard work is done and you've got some serious skills, very impressive
Shops in CT around me would pay this man a handsome amount to be their tool maker. Seems every shop has been looking for one for years. Hope these skills are providing you a comfortable living.
Seriously man , here more creative engineers, tool makers in my country but less pay
I really appreciate you showing the process of the failed motors. This is one of my favorite channels!
Как всегда, приятно смотреть на аккуратную и точную работу. Крепкого здоровья!
I'm a 75 year old spent many years working in aircraft machine shop in UK....your skills with manual machines only remind me of those days...
Thing's changed with CNC tool's...
Never give up on yourself, your dreams and aspirations,
Good luck with everything you do.
One of my tenants has a bunch of CNC's in his shop. Not one person in the shop can run a manual mill. They're more computer programmers than machinists if you ask me. They still make quality parts, but how they get to those parts is a completely different world. I'm not sure they could make anything by hand. At the same time though they can make parts far more complicated than any manual Machinist could dream of.
No matter how much planning, sometimes we’re the dog! You do have a very good ability to try. That’s were the real genus comes from.
Great video 👍 Ca'lem thanks for sharing your fails and success and your humor is always appreciated.
Dù không làm cơ khí nhưng cũng không bỏ lỡ các video của a bạn này. Rất thích 1 người tỉ mỉ và chỉnh chu.
Thanks bác nhé!
but it is you who deserve to be thanked by offering us this excellent pleasure of seeing your adorable work
thank you so much
You are a fine young craftsman and I enjoy watching you design and build. Thanks.
Cà Lem holding down the house for us as we all go through Ol' Tony withdrawals.
I always look forward to your videos! Nice project.
It is so wonderful to have you back. Thanks for the always artful projects.
Thank you 🤓
I've been thinking about building a powered tool post spindle for a while, for grinding and milling on the lathe. Yours is my favorite design - in particular, the ease with which the belt can be tensioned and the motor swapped out is very appealing. Bravo!
I had no idea what you were building but couldn't stop watching just to find out. Very cool!
Again, another great example of your ingenuity and skill! I wish UA-cam had notified me about this a week ago when the video was actually released.
The belt is flopping, you need to tension it.
Keep it up, you're one of my favourite machinists to watch. 👍
Nice idea to have the collet nut and shaft work as a direct clamping arbor for larger grinding wheels
Your engineering ability is always a pleasure to watch... your video and editing skills get better and better! The extra little funny touches really made me chuckle. Thank you so much.
I love that you added a 2:1 ratio in there after the first try! That's a super great way to quadruple the torque to load ratio...
You are a truly brilliant man Cá Lem.😀👍
Thank you for your beautiful work. You inspired me to buy a milling machine and to start learning machining.
🤝💪 Dont kill yourself okay.
@ I am trying to survive :) I have experience with other crafts, so at least I know how to keep all my body parts around machines.
Making your own grinding wheel! That's heroic right there. Your lock down must be bad. Too bad about the motors.
Thank you sir 😘
Definitely more convenient than having to remove the QC toolpost. Excellent work!
Excellent work 👍👍👍 . Thanks for sharing. Stay safe
I just found your channel. I must say: I am quite impressed with the way you think and the way you learn by doing and making mistakes. Mistake are golden! Great job and hope to join you on more of your journey. You are very talented. I'm from America were we buy everything!
Gday CàLem, awesome job, the runout in the spindle is is next to zero, brilliant design and there’s many of uses, I ground the MT 3 spindle in the universal head in the Cincinnati with a bench grinder mounted to the table, made an arbor extension with a stone and went for it, very slow job but got the run out down under a thou, pure luck I think mate, great video as always, hopefully you guys will be out of lockdown soon, take care, Cheers
Thank you Matty. 😉
I did the same in Greece. I holded it on Multifix B. As stone I use 100mm. As motor an angle grinder Flex 1400w, 2500-7500rpm. Front bearings 52/20 Back bearings 42/15 (2 pieces in both sides). Works great without chater ! Thank you for your ideas ! Regards from Greece
Once again another amazing project. You my friend are truly inspirational. Every time I watch you work I get the itch to get into the shop. Great Job!!! Thanks for Sharing...
Great seeing another creative video and project from you. Hope your health is ok and you can come through this physically and mentally sound.
6:34 and 6:41 - CaLem demonstrates the world's strongest thumbs . . . 18:20 CaLem notices his error and uses the arbor press.
[ keep up the good work! . . . a lot of people enjoy watching you work, it's better than getting out of bed and doing it ourselves ]
So much work there. Well done 👍
The large mass between bearings was a puzzler; I had to run it thru my brain several times to find the sense of it, Don't recall seeing it on other spindle grinders,. Don't know if I was supposed to smile at the clunking noise but I did LOL TY 4 sharing
Look into industrial sewing machine motors: fully enclosed, powerful, compact and silent. They also last "forever". You may also use a different pulley ratio to increase spindle speed.
Welcome back Ca Lem. Glad you are here! Ron CT USA
Always a pleasure to watch your videos 👍🏼
Great work, you thought out and solved every problem. Thanks for sharing your work. Charles
Very nice, professional design around the spindle !!!!
All time looking awesome ❣️
Glad to see you’re back up and posting. It’s always impressive
Awesome to see this taking shape, I always wondered about grinding setups like that, never seen one in person.
Some of the finest machining I’ve seen.
Love watching this! (especially the throw-in-the-trash scenes).
Nice job as always. We shared this video in our homemade tools forum this week :)
Maybe a 15 Amp variable speed router motor?
Always enjoyable content, thanks for sharing,
Cheers
That's a great idea. Fairly portable, powerful for the size, and often has speed control built in.
Great job again, stay safe and healthy, awaiting for your next project!
Really cool work! Balancing the Grinding Wheel makes the surface more beautiful 👍👍👍regards from Austria, looking your channel is never waste the time!
I built a really simple holder for a airdriven 20€ grinder to grid some chucks. Worked well. The only problem was the massive air consumption, which lead to a noticable change in rpm and believe it or not, in grinding disc diameter. I had to ensure that the final pass was always done with a full tank of air or it would not cut material after the previous cuts.
Very good job. I didn't know a grinder needed a motor with such power.
"Material"… no "s", my friend.
I love your videos. I don't have the machinery that you have… and you make it really tough, and I think I'll cry sometimes? 😁
No… I'm kinda kidding.
You make it look so easy, and I'm amazed at how things turn out so perfectly!
I'd take the mistakes that you make from time to time & brag my ass off, after having made them… is what I'd settle for!
Thank you, for sharing!
Your rejects are 100x better than my best work. Thanks for sharing.
Great. Another UA-cam guy making over complicated and precise things. Love it! Subscribed!
Very neat design and workmanship, well done. Thanks
Great video (as always), as others also said in the comments, so good that you also show the motors that did not quite cut it, learning for all of us. And I´m super impressed how you stopped the lathe with the strength of your hand... ;)
I love watching your videos. I learned a lot from this video. Keep up the great work.
The rear bearing arrangement needs a wavy washer for preload and to allow for shaft expansion
What you said is mostly for regular bearings application. Or angular contact bearings but different type of set up compare to mine. Not wavy spring, it should be a number of coil spring and thrust washer, precision made, properly set up. If not, it wont worth the price and whats angular contact bearing made for.
A good video. I am also glad to see that I am not the only who throws things over the left shoulder....
It is always a joyful experience watching you work! Thank you for sharing.
If it was possible, maybe there is a constant-speed motor controller somewhere, some day. It could increase the power when it sees the motor is slowing down.
Такие есть. Сервомотор
Great skill, as always.
I suggest building guards for the stone and the belt. At those speeds, a face shield might not be enough in the case of serious failure. And having a piece of the stone embedding itself in a hand/arm/chest or getting a whip from a belt thread is not much fun, either.
If you want to use induction motors (like the two you tried first) you'll need to use a VFD, otherwise you're limited to the mains frequency, i.e. 3000 rpm for 50 Hz. Using pulleys would to increase speed reduces torque, requiring an impractically large motor. Regular 50 Hz induction motors usually work fine at 100 Hz (I use this setup on my mill).
The best way to protect yourself is to ensure that, as much as possible, you keep your body and anything else important out of the plane of rotation of the grinder. I always keep myself as far as possible out of the plane of rotation when I am using any rotating machine. Personal protective equipment is important, but it is in the third level of safety, first level, is a safe workplace, this includes the machine itself, ingress and egress routes, correct unobstructed working space, machine maintenance, etc. The second level is proper training, and the third level includes personal protective equipment and "magic".
Magic is things you can't see but can only assume are working, this includes things like stop-saws, earth leakage breakers (core balance devices, and the myriad of other names that have been used for earth leakage breakers) - WARNING these only protect you if you are connected to earth, if you are insulated from earth and become a load across a high voltage circuit, the breaker will not trip and you will be toast. It is amazing how many people seem to not know this serious issue.
The spindle was so great. Amazing publish. The studies that you made about the spindle was very fine. I don't wanna be boring but, in my opinion, I do believe you can put less speed on the milling process. The motor could be assembled on the shaft by helicoidal gears. This device is amazing, don't through away. Perseverance my friend.
Well done. Amazing patience. I know how difficult it can be where you live. I'm in Thailand.
Another project of Cà Lem well worth watching, we need more of this
Always a pleasure to see a true talent perform
Enjoyed that. Thanks for sharing.
I admire your perseverance! You'll get there! :)
Miss hearing your voice dude, your English is good and I find the tone of your voice relaxing, a perfect accompaniment to your fantastic work. ✌️👍
yeah. Girls tell me that too 😁
@ Lol, you know bro 😉
@ 😂😂😂Romeo😂
Yet another great video and build/project 👍👌💪😀 best regards
Большое спасибо, желаю Вам терпения.
Bravo, very nice project! So now you need to make a nice steady rest :). Well done
Pierre
already has one?
I do have one. But i will make one too 🥳
Always like your projects! It occurred to me that you might balance the axle. The meat you left in the middle is also where you vould take away a fraction of material.
Basically a basic cylindrical concocted on covid enforced downtime at a fraction of the cylindrical grinders cost. Top stuff sir.
getting back from vacation and i really enjoyed the project.... Also I understand you fine, please do more verbal commits explaining your thoughts..Roger Fossette middle ga
Trên cả tuyệt vời em ơi, hay k có gì để d.tả hết về những clip của em. Phát huy nhé.
Beatiful machining and great videography. You really tell the story.
Hope you get a motor that fits your needs.
Awesome stuff as always. Great engineering!
Take care man! Must be hard in constant lockdown! Keep my fingers crossed for you!
thank you my man.
Well done...great jop....thanks a million for sharing
Firstly i love you couldn't buy "masterials" during lockdown! But then again we all need must-erials to work with. Cheers mate, be well.
Hello my friend. Good to see another great video🖐😎 👍
For which new spectacular project do you need your cool new grinder tool? I am always fascinated!
4 tháng Covid giờ mới thấy cậu xuất hiện lại, chắc ngứa tay ngứa chân lắm đây kkkkk
Xof course, great project as always 👍🏻👍🏻
At 8:15 : the inner spacing rings in between the two sets of bearings are useless. The tightening force goes from the inner ring of one bearing, through its balls, then the outer ring, the spacer, the other outer ring of the twin bearing, the balls and the inner ring.
Inspirational! great content as usual - cant wait to see what you make next!
Amazing quality videos and work as always!
Nice work!
Sorry about your power scraper...
Be safe!
very good job ca lem
WOW; It's nice to see really good work. I wish I could do that good; Something to work toward.
Nice! Maybe you can makevitbwork fir now by dressing the wheel into a cup wheel, then you have the rpm and maybe with the thinner contact band the motor can keep up without stalling. Great video as always
You must have had a great teacher? You are wiser than your age shows.
The motor trick I use is brushless E bike motors. They run at 24 to 48 volts so you need a power supply but they're cheap. They run very smooth but only about 3k rpm so you have to run a different pully system.
Thanks for the video.
Brushless impact motors would be great too. The 1" Milwaukee is like 1200 ft pds or something crazy like that
Great man, the best at the lathe.
Was as high quality project and video as I was expecting Ca Lem! By the way, did you end up finding some more multifix tool holders? Also when did you pick up an optical comparator? You may have shown this in your prior vids but I can't recall it. Your workshop is really getting well equipped now, between the nice machines / tools you are buying and restoring, plus the stuff you are making!
Love your work
Thank you man. I got some holders last year but never feel enough of them. pick up an comparator last few months. never got a change to give it some "spa" works.
🎉sir praice
I love that hand brake for your lathe! (3:00) I gotta get one of those!
Never give up..
Gonzo metalworking! Thanks for sharing.
OOOH!! CA is back!! a HUGE thumbsup immediatly,and it is VERY nice to se you again. i was actualy thinking of you about 2 days ago "when will he,if ever,return?" nice to se you back again ,sir. ** did notice now that u actualy made 2 vids that i completley missed**
Too bad. You got fired!!!!
@ aaaaaah..... shit..