Hi Dale I'm between beer 8 and 9 so take this for what its worth... Paint a new drill shank with some non-drying ink and then clamp it in the chuck you just ground. That will tell you more about the effects of taper while grinding. Also, you didn't seem to mention about 'walking the key'. Where you tighten the chuck at every location of the chuck perimeter. This helps to distribute the force on the jaws according to the old fart that that taught this old fart about it a hundred years ago

@fredbloggs4829

4 жыл бұрын

Doug, from one old fart to another, great advice. Hope you enjoyed the beers.

Nice to see you share something to help others. Thank you. Lance & Patrick.

Thanks for the video Dale, I enjoyed it. Love all your videos

I always learn about new things I need to buy for my lathe from your channel. Now I need a tool post indicator!

Necessity is the mother of invention great videos Dale I’ve been a Carpenter all my life now retired want to be a metal guy🤠👍

Cool idea, never thought of that

I really like the idea of mountin the grinder on the tool post,it does seem to give you better control, that's my problem you keep giving me ideas. Thanks

Great video 👍 Thank You for sharing

Thanks Dale!!!

i fixed my chuck by mounting a 1/8" diamond coated rotozip tile bit in the mill collect and the super chuck in the mill vice in a collect block and the bit centered at full cut depth then slowly tightened the super chuck by hand. worked great and ended up with .0009 run out. thanks for sharing

Yet another great video. Thank you.

Thanks for sharing

Great video

Cause Metal Health Will Drive You Mad!!! All Metal All The Time!!! Keep Rocking it out!!!

Definitely wanna see the press build!

Another good one.

good idea,might try it some day myself

Hell yeah on the press rebuild.

Gday Dale, very informative video and a very interesting topic, thank you Dale, please keep the videos coming, ATB Matty

Keep up the good work

I love working with metal

Grande Dale!!! Ciao

Awesome! looks like you got it fixed!

@BuildSomthingCool

4 жыл бұрын

Thanks My freind :-)

I'd watch a video of you reassembling that press for sure.

This is one of the most over the top video I’ve seen in a while. Nice job.

Enjoyed Dale! ATB, Robin

Great info man...Thanks for sharing...;-p

Dale, like to see more of your press. I have a original war time KR Wilson 25 ton. They are very cool presses. I'm sure you will like yours.

After 5 years of looking before you found the press you were looking for, you BETTER make a video on it!!

Hi Kevin from Aus very interesting at what you done I have done this a lot of times in my time as machineical engeer 55 years if you grind in a lath you need to cover up the bed from grinding dust with a bit of oil the quicker to wear out bed I wood put it in the tool and cutter grinder using the arber on drill chuck and taper in the grinder no setting up . keep up all the good work Kevin.

Oh Dale, Norris jaw never wears out! :P

I would love seeing you refurbish the Press. Please!!

I was worried when you pressed on the jaws, but the explanation you gave from Jacobs made sense. Even better when you suggested using a tube, like it. I wonder as another method if the chuck could grip onto a small disc right at the back of the jaws, allowing the chuck to be gently tightened and then grind the free section. When done remove the disc and over grind that rear section using your free spin method to give clearance. Of course a small part of the jaw is no longer gripping the drill bit.

@BuildSomthingCool

4 жыл бұрын

I thought of that too, but I think the force is not equal enough, more pressure on the back will kink the front tips of the jaws inward making for a tapered grind.

Nice video Dale, .003" is a pretty good tolerance for a drill press.

Would love to see you rebuild the press

@BuildSomthingCool

4 жыл бұрын

It going to happen very soon

Needle rollers from an old 2 stroke little end bearing would probably be about ideal for locking between the jaws.

Try making sure the jaws stay in the same positions. Number or dot them, perhaps.

Hey Dale - That was cool. Now you can clean all of your chucks. Yes - Show us the press restoration - thanks

@BuildSomthingCool

4 жыл бұрын

I will be doing the press very soon :-)

You seem insanely familiar. This is gonna make ne crazy.

@OldSneelock

4 жыл бұрын

Look up sharpening a file with acid. 😆

Never been first before Wow bucket list complete

@zumbazumba1

4 жыл бұрын

You can now die in peace knowing that you made this great accomplishment in your life, that history will remember you just like it remember julius ceasar ,napoleon,stalin or hitler XD

@rickpalechuk4411

4 жыл бұрын

@@zumbazumba1 LOL

When grinding, especially internal, and with the wheel mounted on a super skinny shaft (as here), reciprocate the wheel to and fro inside the bore, but never traverse the wheel off the surface being ground at either end of the hole, always leave about 1/3rd of the contact portion of the wheel inside the hole at its extremities. The exact portion of the wheel which should stay in the hole may need a little experimentation, but do it like you are, and cow-mouthing at each end will always result.

Yes do the press resto

Yes, restore the press.

I just found out about walking the key from and old hand at work. He saw me drilling a holes in a plate to hold a new bracket. The welder had made a new bracket for me to install on my unit. He was very busy and had stopped he project and whipped up a piece fo me and went back to work. I had brought my drills and tools to work with me but I was using the company’s old drill press. The old drill press had an old worn out chuck, my coworker was working on some a few feet a way and watching but not watch. He said “hey you need to walk the key!” Me “walk the key? Him” around the chuck. “ i had just put a drill in the chuck, and he said “ spin it and watch the run out” “stop and now. walk the key” and it worked the run out was almost gone.

Hi Dale. Nice work on the chuck. Could you use the power feed? That would smooth out the feed rate. Of course I would like to see the press brake reassembled. I haven't met a machinist yet that doesn't love watching someone elese work. 😆😎

But it’s meant to be tapered aren’t they? so by angling the stone now only the tips will have full contact?

You should rebuild that press man!

@BuildSomthingCool

4 жыл бұрын

I will very soon. I hate not having one.

Awesome idea, are you actually using centrifugal force or, by screwing the chuck full open, it jams the jaws with pressure similar to grabbing something. Since you taped the chuck to prevent movement is why it appears to be the jamming action. Great video

Dale, I’m wondering if this might be done on a surface grinder some how? Then you could reprint the wedge side to narrow down the surface contact area.

@BuildSomthingCool

4 жыл бұрын

That was my goal, but I had know way to constantly set up the jaws

Please do the hydraulicpress! Keep the good work up. ;)

I feel there could be a follow-up for this. I recon you could get that thin edge back after this grind. You have the nice even face now, just grind the sides in to thin it out.

@BuildSomthingCool

4 жыл бұрын

I thought about doing that. But I think it’s time for me to move on from doing videos about drill chucks and lathe chuck. I hope that ok? 😀😀😀

3:56 As I’m sure you know vise is not a press. As always be careful with what you use it for, never use a cheater bar or mallet on the vise handle, and be prepared for if what you have in the vise comes flying out at your face. I get it you can’t use a transparent moving blanket to protect yourself from if the chuck were to come flying out when you’re recording a video, but I still thought it could be worth mentioning for those who see a vise and consider it a press. Thanks for the video and keep up the good work!

Regarding the gripping force on a drill bit, it's almost all down to simple friction. It's proportional to the applied load, not the surface area, so touching more or less of the drill isn't going to make an appreciable difference. On the upside, if the drill bit starts to slip in the chuck I reckon you'll probably do less damage to the shank with a greater surface area as well. As to centripetal force holding the jaws in place, I don't think that's likely. The grinding forces would likely overcome the centripetal force quite quickly. It's more likely that it's simply how well fitted the jaws are to the chuck and the pressure applied during grinding. In any case, if the result is good that's all that really counts. Job well done I reckon.

+1 restore the hydraulic press video.

Hi Dale I am looking forward to the new format,with education as the basis. Yes please on the press, I assume that will be a rebuild, at the same time. Not centrifical but centrifugal. I don't think aluminium is ever going to be pronounced correctly, but we live in hope. Americans speak american. Not English.

@BuildSomthingCool

4 жыл бұрын

:-)

Do it like you do a lathe 3 yaw chuck? Put a peace of round steel on the bottom of the chuck and hold it tightly.Do your grinding,remove the metal ring and grind the bottom just to clear it.That should give you concentric ground jaws under load with very little runout.

Not to be a troll about it, but the coefficient of friction is independent of surface area, given a constant force. In other words, if you're getting less holding power, it's because you changed the surface finish of the jaws rather than the surface area. I could be wrong about this, it's always been a little bit confusing to me, so I did a quick check. www.physlink.com/education/askexperts/ae140.cfm But even then, I could still be wrong.

@toomdog

4 жыл бұрын

That's the funny thing about friction - it IS independent of surface area. From what he says though, we're considering surface deformation as the clamping mechanism, not just friction. To deform a material, you have to apply a force, and that force always is applied over an area (in our real, non-ideal world). Since there's only so much force those jaws can apply, it deforms the drill bit less when it is distributed over a larger area. I'm still not sure I buy it, but I think that's the reasoning he explained. I might think about roughing up the surface finish a little to give me more grab instead.

@josephdestaubin7426

4 жыл бұрын

@@toomdog I thought that before I actually wrote my comment, but decided that the clamping force is really no different than the gravitational or normal force as applied to the question of friction. Obviously the clamping force is a great deal more than gravitational force, but the general concept should apply the same way. The concept I'm talking about is that when friction is distributed over a larger area it increases the frictional serface, but decreases, by that same area, the force applied by distributing that force over a larger area. The net result is that the coefficient of friction remains the same. And I honestly don't think it matters whether you're doing this on the Earth, on the moon, or between clamps, the relationship between surface contact and applied force over a surface area remains the same. But hey, I barely survived my physics class in college, so who knows. It would be great if some Physics teacher could chime in here and settle the matter.

@josephdestaubin7426

4 жыл бұрын

@@toomdog Addendum to my previous post, I don't think there are any chucks that can actually deform a drill bit. The reason chuks are hardened and the base of drill bits are not is so that the chuk jaws don't get damaged or worn during adverse use, such as when a bit begins to spin in the chuk. I know this is contrary to popular wisdom, I think if you think about the dimensionality of the pressure on a drill bit, reason will show that I'm correct about the lack of deformation.

@toomdog

4 жыл бұрын

I agree; I wish I could get my old college prof here too! I also agree that the shanks of drill bits are left soft not so that they deform when clamped, but to ensure they are the wearing item when slipping occurs. This is something I don't know a whole lot about, but I think surface deformation behaves a little differently than the deformation we learn about in statics and strength of materials. Imagine, instead of the entire chuck making an indentation, every microscopic high point creates an indent. That's what I think I'm talking about anyway. You know, if we were serious about this, we would do some research instead of just talking on youtube. I'm sure a mechanism like this has been studied before.

@josephdestaubin7426

4 жыл бұрын

@@toomdog "If we were serious..." LMAO to point of tears.... thanks for that, It's so true.

Many thanks. Incidentally you can change your water mark in your videos from your own icon to a subscribe icon, I'm told that helps (Though I've only just added mine and yet to find out).

Ok Dale, you set me straight about the position of the jaws when pressing the chuck apart (Thank you), but not covering the lathe's ways from the grinding dust? What's up with that? It would be interesting to know how they grind the jaws at the factory. I've never seen any info on that process.

@matman7546

4 жыл бұрын

MrMichaeljab my first thought is a jig grinder

I'm pretty sure the chuck, when ground this way, is going to be most accurate when a diameter test piece is the same as the diameter of the stone used. Can you check it using test pieces larger and smaller than the stone? I have a chuck with the same issue. Thanks

I’ve seen ABOM tighten his 6 jaw lathe chuck from all of the pinions for less runout. I wonder if tightening a Jacob’s chuck from all three holes on the body could help the barrel of the chuck sit better.

@MF175mp

2 жыл бұрын

It's done for better grip, the best repeatability is achieved by using one marked pinion every time. Same probably goes for drill chucks.

Excellent process. Great tip!👍

The question is, is a ground out used high quality chuck better than a new import chuck?

Hey build something cool.....How about you build some boots to wear in the shop???

@stevewalston7089

4 жыл бұрын

Maybe he can get an advance on his allowance from the wife to buy those boots.

Press rebuild please

is there some reason you don't protect your ways when dressing and grinding?

Hey I am very interested where you aquired the mag paralell device that rotates? I have an anton much bigger one but I also have a smaller one like what you are using in the video. Can yours still be searched out and what is it called and the company?? Thats it good video but am very curious about the ,mag device--I do in fact have a few videos of mine perhaps I will try to post the link.. Hope you see this message thanks

@BuildSomthingCool

4 жыл бұрын

Heres the company Sandox SD-3 Patent des 325390 hope this helps

@jaysilverheals4445

4 жыл бұрын

@@BuildSomthingCool THANKS

@jaysilverheals4445

4 жыл бұрын

@@BuildSomthingCool damn company must be closed--nothing comes up and I am good at keywords and searching..

The first one of those chucks I tried to take apart I broke the jaws. I didn't know they were suppose to be in the middle.

@BuildSomthingCool

4 жыл бұрын

I was lucky. The one I damage I was able to save:-)

Thsts the reason i replace al my chucks because they get to the point of having every bit or drill slip in there and mar all their shafts...

Where fo you get your apron

What in the world in in the bridgeport spindle in the back?

@mkegadgets4380

4 жыл бұрын

Looks like a taping head?

@mattbechberger3298

4 жыл бұрын

Could be a planetary speed increaser for small drill diameters

Hand raised got like 12 of them that are worn out

Where do you get a dressing diamond like that?

@BuildSomthingCool

4 жыл бұрын

On ebay

Regarding your point at 1:49 regarding the diminished pressure applied by the ground chuck jaws...that may not be true,or at least doesn't seem geometrically correct to me. Assuming the drill bit can be approximated as a cylinder, the cylinder can only contact a flat surface along, a straight line. It's either that or no contact at all. So, making the contacting planes larger y grinding would not change this. Of course this is also assuming no pressure induced surface deformation.

@BuildSomthingCool

4 жыл бұрын

Hi Chris, Good comment, I m sorry I didn't explain it well enough. What I should have said is that the Harden Jaws are designed to bite into the soft shank of the drill bit, and by grinding the jaws you add more surface to them, and that prevents them bite into the shank of the bit. Dose that make since?

Hello sir how are you I want to know about how the jaws thread make do you suggest me any machine or video realting

Tighten the Chuck on something and super-glue the jaws in place, grind and then heat It up, clean. Could It work? Never tried, Just thinking about it!

@bobblack3870

4 жыл бұрын

Interesting thought, but if you tighten on 'something', how are you going to get that 'something' out before you start work?

@tommasofossati5123

4 жыл бұрын

@@bobblack3870 maybe a piece of wood you draw out, It must be soft to push the jaws in their slots in an uniform way. Also you can use soft plastic, or hard Rubber. Imagine a round hardwood stock you can clamp into the vice and draw It out

@BuildSomthingCool

4 жыл бұрын

That might work. I wondering if you can get the glue a constant enough thickness. I have to give it some more thought. :-)

Late to the party, but I noticed at 2:18 the jaws were never evenly ground from toe to heal. Looks like they are designed to grip only at the top. Went back and looked because the 1deg on the compound didn't make sense to me. What am I missing?

A Jacobs 19L came on an old drill press. The seller said the chuck needed "a little love". One jaw sets way back from the other two. Those two only travel about 1/4 their designed range of motion before the third jaw blocks further travel. Nothing appears broken. The problem of disassembly seems like a Rubik's Cube to me though I've disassembled other Super Chucks. The machine shop where I do business took a look and said, "You're out of luck" and handed it back. Any ideas? Would you be willing to try? Thank you for your channel. You put out good videos.

Reassemble, you mean restore lol why didn't you make a press? Great video!!

@dimitar4y

4 жыл бұрын

Ps: he might be dumber than he seeems pssst

Thumbs up on another fine video. No need to sub- I've been one for several years. If I may ask, what prompted you to move to CA, land of high taxes and very pricey real estate?

@BuildSomthingCool

4 жыл бұрын

I make to much money and thought government of California could use it ;-0 LOL

@jeffryblackmon4846

4 жыл бұрын

@@BuildSomthingCool Your generosity is certainly appreciated!

I trashed all my key type chucks and keys years ago, could not be happier.....

@b2major9th

4 жыл бұрын

Cape Cod CNC running keyless chucks in reverse no bueno

Nice sandals dale don’t drop anything haha 😵🏥

I prefer your idea of grinding them on a surface grinder. A small V-block on a sine plate should work.

I've got a KR Wilson 50 ton press similar to that one. Mine has the 2 speed manual pump as well as a motorized pump, all factory. Had to make a new ram for it when I got it due to rust pitting. The new one with new seals still leaks just a bit. Mfg date on it is 1947. Company history info: krwilsontools.com/index.html

Good video. You missed one thing. How do you tell when/if your jaw are worn out? You alluded to it in your viseo, but wasn't made clear. At least to me :-)

@BuildSomthingCool

4 жыл бұрын

Your right I missed that point. There are to ways, one I showed. Put a test rod in your chuck and test for it’s runout. Second thing to do is a visual inspection. Look in side and look at the jaws. They should all look the same. Have a consistent shape no tapers no nicks. I hope this helps. Great question.

Dale, you are a beginner.......?

Hi Dale, I am just wondering why you didn't order a new set of jaws.?

@halifaxmax5039

4 жыл бұрын

He said he gets quality chucks used for $20, but a new set of jaws that large are around $80, so he's trying to get more life out of them.

04:20

by the way you can just buy and service kit for $30 .

@BuildSomthingCool

4 жыл бұрын

Where?

@purohd

4 жыл бұрын

Mc master MSC or any company the sales machine shop tools

@b2major9th

4 жыл бұрын

Luis Caruso I just looked up the price on McMaster-Carr. The price for the 14N kit for the later style chuck that Dale has is $168.62, not $30

Got your steel toe flip flops on atleast

@BuildSomthingCool

3 жыл бұрын

Safty first. :-)

Dale, interesting video. Now if you could now STOP having adverts throughout your video's ( never used to be ) then I will be a Happy Bunny.

The thumbs up click just wasn't enough of a "thanks". Thanks, Dale! And don't let the idiots get to ya! Your videos are greatly appreciated!

@BuildSomthingCool

4 жыл бұрын

Thank you :-)

warum wirfst du das schrottfutter nicht einfach weg und kaufst dir dafür ein gutes futter, bräuchtest du nicht so viel zeit vergäuden und würdest nebenbei was sinnvolles tun

Dale, couldn't someone with your equipment and skill mill/face the jaws rather than grind? Sure, work holding, esp repeated 3 times, would be a challenge on the mill but a DRO would help

@BuildSomthingCool

4 жыл бұрын

Hi Len. It would be hard to do it on the mill because the jaw are tool steel hard

Another Clueless content Creator .....

@BuildSomthingCool

4 жыл бұрын

jkdwayne Another clueless non content creator.