I have been following you from Morocco for five years, and I went to the institute to study this profession and got a diploma that allows me to practice it. I am now working as a machinist and a lathe in a company in Morocco. I would like to thank you because you were the reason for me entering this field.

My grandfather worked at Cushman back in the day and I asked him the same question a long time ago and he told me that the holes in the back of the chucks face plate are for 1) balancing, bc the last you want is an unbalanced hunk of iron spinning on your lathe and for 2) they help to reduce the overall weight and 3) Harmonics. It turned out great Adam! 👍👍

Abom and a 4 jaw………….. goes together like eggs n bacon 👌🏻👌🏻

Hi Abby and Adam, I really like how you have sped up the video for the mundane long cleaning process , keep up the great job you guys.

Great time to outfit that chuck for soft jaw covers. CEE just did a video on his method for getting tapped holes in hard jaws for that.

Glorious, Adam. Absolutely glorious. Well done. Thanks for sharing. 😃

That 4 jaw cleaned up nice and it looks good on the Pacemaker.

When I was in the Navy, "work it may, shine it must!", civilian life "work it must, shine perhaps". Grandmother said that cleanliness was next to godliness, looks very good!!!

As a hobby machinist/landspeed racer, I appreciate your passion for the American traditions. Watched this resto series start to finish. Length is perfect for the task accomplished. Gonna have to have one of those t-shirts to wear at Bonneville this year. Thank You

Walter Schultz is the gentleman on Practical Machinist that makes the custom L series wrenches.

Those CRC products are the real hero of this story. Unbelievable how well those chemicals work together.

My girlfriend and i enjoyed it alot , well done ☆☆☆☆☆ Grtz from the netherlands Johny geerts

Anybody else ever put a scotch bright pad on a square pad or orbital sander. 😍😍Works wonders especially for those who have hand pains like me.

can't wait to see some heavy metal machining again.

This size machine brings me back to old school abom. Yaaaaas.

The 4-jaw chuck is really looking good on the lathe. Great work sir! Watching you remove the chuck reminded me of something... My Mom was a machinist at a company that made open pit mining cranes. In the early 90s, the company was moving some of the machining equipment around on the shop floor to make room for new machines. One large lathe they moved needed a chuck to be replaced (not sure why). She was tasked with helping in the swap of the chuck. One day after she got home from work she told me that they had a little surprise at work. When they removed the old chuck, on the inside wall of the lock nut, they found "JW - 1967" written in black marker. She told me that "JW" was a coworker that used to work in the shop and had retired about 10 years earlier. Moreover, JW had passed away a few weeks before they removed the chuck. It was not clear how long the chuck had actually been on the machine, but apparently JW had touched that machine at least in 1967. I was born in 1968... so that graffiti was likely older than I was. 😀 She said it was like JW was waving back at the shop from heaven. What makes this more strange to me now... Mom passed away in 2018... almost like Mom is waving back at me. 🥲

I wouldnt know anything about machining if it weren't for your videos, thank you for what you do. God bless.

If each hole is 2.00", approx 2.500" deep, that's 7.856 In3 of steel per hole. Times 24 holes is 188.544 In3. Weight of steel is roughly (depending on grade/alloy) .2833 In3, so they removed 53.51lbs of steel. That's a lot of rotating mass saved. Great job man, I like to restore old hand tools like hammers and axes sometimes my spare time, it's always awesome to see an old tool come back to life.

Been watching abom for number of yrs,its Changed alot from slinging big chips and lots of machining ???

Adam, thanks for your videos. Between the music and your voice, it makes for a peaceful Saturday.

I JUST LEARNED MY PACEMAKER HAS A BRAKE!!! Thanks Abom! I just saw you use it and couldn't believe it. I have only used lathes with a foot peddle bake and just assumed the pacemaker didn't have one.

your crane always seems to make jobs look easier, bet you are glade you have it

14:20 The holes also reduce inertia; less load on the lathe motor when getting up to speed, and less wear on the brake when stopping.

Lightening it also reduces the moment of inertia, meaning it spins up and down more easily, saving wear and stress on the gear train and clutch.

Just to hear you get excited with this big 4 jaw chuck on the lathe, priceless!

I can see the old machines pride starting to shine again Adam.

Adam, I have to say (after taking a break from your channel (after watching you from day one)) that you have come a long way. From your couple of minute videos from motion to this. Very impressed. As a kindred spirit for the best and tidy may I say your new shop looks amazing. I’m looking forward to reviewing the various aspects of the new machinery. Keith Fenner turned me on to these videos back in 2012. I believe you and Matt over on Diesel Creek have really evolved. The attention to detail, including your screw ups (as one should) editing, etc make the viewing worthwhile. Abby has been a great addition to your channel as well. Finally, I ALWAYS forget to put the damn gloves on. Always! Ugh. Thanks for your efforts. G

Nice to see that lathe spun up. Thanks for the video.

It was kind of fun seeing you a bit out of your comfort zone installing the chuck on that L taper spindle nose, since I have seen you only working with Camlocks. (I don’t know about the Pacemaker at Motion Industries though) For me it is the other way around, i have worked only with L-taper fittings and never ever with the Camlock system. Therefore, and with all respect, I have 2 suggestions: there is no need to hammer the chuck loose from the cone. System is designed to turn the nut back against the bearing housing in order to push the chuck loose. In that position there are still a few threads engaged, so no fear that the chuck drops of the spindle on the bed. The other one: when putting a chuck back on the cone and after tightening the nut by hand, release the tension from the hoist and then tighten the nut with the hook spanner. When the hook spanner is the original one, an extension is not necessary. The “Keith Fenner method” by jumping is the usual way to do the tigtening. Again, no offence.

It's good to see that you enjoy CRC products as much as I do.

I have a 1927 P&W 13" Model M. Runs great. I'm 5 years younger than it, and wish I ran as well. . Love your channel and new shop. Gramps

Awesome!! Can’t wait to see chips flying off that baby!

My grandfather was a tool and dye maker at the Ford trade school in Windsor Ontario. He made model A's and model T's. You and my grandfather would have got along well. I sure appreciate your attention to detail and professionalism. Thank you

G'day Adam. Lots of hard work cleaning the chuck assembly, which turned out really well. Also I like the way the job material gets indicated which you make look so easy. 😉 great video, waiting for the chips to fly.

Lighting holes are used in so many products within machining parts, Your videos are so well explained on why you do what you are doing Thank you so much for sharing things you do as you move forward putting your new shop together

Your videos is so relaxing to watch. And all the love and effort you put in your machines and tools. Its just amazing. Nice work Adam!

First rate work as usual Adam. Watching the edges of the Chuck running true reminds me of my light-weight aluminum wheel head on my potter’s wheel! Best wishes to you and your sweetie!❤️

ONE OF THE BEST MACHINE SHOP VIDEOS OUT I LOVE HOW CLEAN EVERYTHING IS I HATE DIRTY EQUIPMENT AS WELL UR VIDEOS ALWAYS TURN OVER VERY WELL AND UR A VERY BRILLANT INSTRUCTOR AS WELL EXPLAIN EVERYTHING OUT WELL love watching ur videos from down under ossie AUSTRALIA

Really liked that silent intro. Another great video.

This is exactly the kind of content I love to watch.

Wow Adam and that 4 jaw looks better on the pacemaker than the 3 jaw

Please don't be insulted, but I nap very well watching. I try to give a thumbs up right away so I don't forget

I feel kind of guilty for watching all of this job. I’ve got a ton of work around here I need to get done. When someone asks why I’m late getting things done I blame you. I was a Millwright for years; I find it interesting how different skills have different names tools. Well done...That's slicker than socks on a rooster!

One “Abom torque”….. your best line ever brother!!!

Have you thought about drilling/tapping your chuck jaws so you can bolt on soft jaw plates? @CuttingEdgeEngineering does that and it makes a ton of sense.

Man it would be great to see and entire restoration on that machine. We had a few of those machines at the valve shop I used to work at in Mobile, one of them was off the USS Alabama. Always nice seeing new life breathed into old machines, they dont make them like they used too!

One tip for polishing and metal cleaning get a cheap vibrating palm sander and put a sheet of scotchbright in it add some oil and push it around a couple times and it's clean in seconds also works great on the welding table 👍👍👍

Great job Adam. The chuck looks great. I wonder what the blank they start with weighs? You are correct, the holes are there to reduce the finished weight and also to balance the chuck. Some of those are just slightly deeper than others. Much the same way you drill out material on a flywheel to balance it. Looking forward to some production videos from the American Pacemaker.

I wondered about the lightening holes in the rear of the chuck as well. I suspect some are used for balancing.

Man, Adam, great to see you working on a 4-jaw again. So natural, must be the muscle memory!

congratulations, I hope that your business goes well for you both. Uncle Terry

So nice when a company steps up and makes the customer happy. And they didn't just drop off a battery, they sent a tech to do a proper job.

That chuck cleaned up nicely.

Outstanding job dude! From where that chuck started to what you ended up with (after a significant amount of effort on your part) is fantastic. Really looking forward to gearbox and clutch "cleanup". Lets see it cut some chips! Love your work Abomb. It's inspiring.

The shop is looking good with all the new equipment.

Make the CNC mill a vise=gripper type holder. Have your CNC mill take out the wipe-down rag and wipe down the machine every night.

New shop looks great. I love hand files.

I like this series. Thanks for not skipping a bunch of stuff and keeping the video full length. It's good stuff

I believe the machine brakes also benefit from the reduction of the weight.

Dang - that chuck is loved and definitely better than new! Good tools will last for generations if well taken care of. She looks absolutely beautiful considering her age. Thanks for another great video.

Another reason for putting holes into the chuck would be balancing it. If there are any imperfections or weight differences, you can drill holes to different depths while manufacturing to account for those things, so you have a chuck that runs perfectly smooth.

your smirk after you got that chuck mounted.... excited to see some big jobs back in the shop! congrats, that chuck looks great

Your care and attention to detail when working with your machinery is very admirable! You could almost call it love.

This is exciting bro! Big lathe, 4 jaw, abom. I am actually getting a bit of nostalgia from watching this video.

Congratulations ! You are really a perfect "desparate house wife" when you clean something ;-)) The next time you will come in Paris I give you the key of my appartement to clean it !!!

Having that piece of old iron in amongst all your new machines grounds the shop in tradition. Excellent.

Good show! The holes in the back do two things, lighten it, but also keeps it dimensional stable. As you know, metal changes based on temperature.

Adam,use a soft brass wire wheel for the grooves,good finish no scratches.

kinda trippy seeing this in the new shop instead of the home shop like in the past.a little better lighting here lol

The 4 Jaw looks great. Big lathe big chuck.

Thanks Adam. Mr. Booth you are indeed...... The Master!!!!!

It's beautiful man! Can't wait to see some test cuts! I'm not a machinist and I can imagine it can get pretty tiring and tedious to true up a four jaw every time but I do appreciate the lengths you go to to make sure things are working dead true even with the spindle bore that I bet gets overlooked on most lathes. You're one of my favorite channels to watch because of your eye for detail. Some may find it boring to see all that B roll like truing up stock or stoning surfaces and that's why they cut it out on most channels but I'm one that appreciates every bit of that perfectionism.

Take care of your machines and they will take care of you. Love the old school machines.

yes ive got the same 6inc thread on my colchester lathe , as does ol keith fenner , break it lose then give it one more twick at the end to break the taper !!! good videos

Amazing that they left that chuck rusting on the floor while they used the 3-jaw. Lucky for you it was still around!

Hi Adam, interesting about the holes in the back of the chuck. As you say, to remove weight, but I guess that would also serve to reduce the inertia when spinning up, or spinning down. I think this would probably be kinder to the lathe drive train overall.

Congrats, Adam. She's a beauty.

I remember when there was not a machine in your new shop. Air-conditioning, Ac getting pulled so on and son. You've come far Adam

Good job Adam, looks great. 😃

I'd guess the 4 smaller holes in between the larger holes are for balancing.

I am not a machinist, never will be… But this is so much fun to watch!

I would imagine as well as lightening the chuck the holes in the back could play a part in balancing the rotating mass, drilled in the right spot and remove specific amounts of material to help make sure it's not lopsided and doesn't wobble and shake when it gets to spinning up to high speed. Sounds good, anyway.

This was a pretty cool restoration. I really liked that you didn't have to seriously get at it to make it like new.

Oh wow old school lathe at the new shop, cool 🙂👍

whoever edits the raw footage for publication does a bang-up job. Kudos! 👍👍👊👊

Just love them old Machines, always good to see you taking pride in your work, a lot of workmanship is slowly going away sad to say . As always a pleasure to see you always taking pride in your workmanship in every thing you do! Thanks for the video Adam!

I can hardly wait to see a large pile of Blue Chips in the pan.

OK, now you have to refurbish the 3 jaw. :)

When changing an L series chuck it is normal to tap the end of the C spanner with a hammer. Same when tightening. It is recommended in my Colchester Triumph handbook.

Like your new watch maker's lathe. Well, compared to your old day job. :)

If these holes have a different depth, they can also use them for balance.

Good evening everyone from the UK 😁

I’m starting to think OCD is a must for a good machinist. Lol. Looks great Adam.

The American Pacemaker looks so much better now! Thanks for sharing 🇨🇦

Thanks for the videos Adam. Has taught me a lot about how to be more accurate for my everyday projects and repairs.

Good job👍

That’s why I love my vfd on my koping first time I popped that L2 taper like you done after that I just used the jog feature on the vfd it works like a charm

I agree that the holes are there to reduce weight & maybe balancing.

great job, Adam! watching how you restore and maintain your tooling & equipment has given me inspiration to step up my own tool maintenance. 👍👍👊👊

What a beast of a chuck