$103! Rockwell Milling Machine MD21-120 Restoration Part 4 Vertical Head and Quill

[@waltmartin92]

Suggestion- You should put up a nice size photo of the unit prior to restoration somewhere near the unit. When your friends come by, capture photo's of the "jaw drop".

[@BurtonsAttic]

Night and Day!

[@jerrycoleman2610]

Absolutely.!.!.!.

[@GT40Nut]

Looks like all your hard work paid off. Great project an now you have a really nice working mill. None of my tools I have get a lot of use but just knowing they are there allows you to work in ways you didn't. Having a shop full of tools has changed my life.

[@henriqueusinagem8615]

This is undoubtedly an excellent job, I admire people as soon as they have dedication, congratulations on the beautiful work ...

[@TheMarcball]

Love it. Voice-over very useful. Thanks for the inspiration. Keep on trucking (from France)!

[@LuisSanchez-tv9is]

Excelente trabajo de restauración, paso x paso...gracias x compartir..

[@BurtonsAttic]

Gracias

[@bartdabi4793]

wow that's one of the best restoration I have ever seen. great stuff. thumb up,

[@BurtonsAttic]

Thanks Bart! I tried to make the whole video series as complete as possible. It was a lot of footage!

[@andygray3414]

You gotta get a press man! Such a cheap addition to your shop..... loving watching this refurb.

[@michaeldarby2242]

Nice job... i use brass when beating stuff apart and any time i take something apart that might be "indexed" or worn in i will mark with center punch so when i go back together, i just align dots.

[@1234cdsarver]

Thank you I very much enjoyed watching you work look forward to watching new machine with it

[@JamesDedmon]

I’m impressed on the rebuild. Machine looks really good in the video. It will serve you well

[@BurtonsAttic]

Thanks James, it really is night and day!

Turned out very nice!!! Im waiting to see it running.

[@BurtonsAttic]

Almost there! It a lot of video, not to mention the restoration!

[@Tyrel_156]

Ca Lem knows about the work in restoring a milling machine. He did an amazing restoration on his Bridgeport on his channel, you should check it out.

[@grantmckinna7801]

just watched your episodes, very well done.

[@BurtonsAttic]

Thanks Grant!

[@jokkiossaka3306]

Very nice job! Thank you for the video!

[@BurtonsAttic]

Thanks Jossi

[@dannywilsher4165]

Yes sir, I did enjoy the video! I always have a dozen questions to ask while I'm watching. But I know it it very time consuming to answer everyone's questions. Just one comment, My quill handle was broken. I am going to use an old harmonic balancer that spun the rubber to mount my wheel to. I will have to make a bushing for the shaft, but that shouldn't be a problem. Thanks, now to part 5

[@leswolstenholme4925]

A wonderful, fascinating production - thank you

[@BurtonsAttic]

Thank you Les!

[@JimDockrellWatertone]

Nice to see this coming together.

[@BurtonsAttic]

Me too! Thanks Jim

[@bigornafilmes]

What a excellent job. Suggestion : Could you perform a precision check ( X, Y and Z) so we can have an idea where we could get if buying a milling machine like yours when you started the restoration.

[@bobbystanley8580]

Keep getting better and better!

[@lrmodranoel]

Your videos are amazing. Thanks.

[@LuisSanchez-tv9is]

Saludos, cómo se llama el liquido que utilizó para sacar el óxido de esas piezas que sumergió en esa canastilla amarilla.

[@BurtonsAttic]

Evaporust

[@LuisSanchez-tv9is]

@@BurtonsAttic Gracias.. Bendiciones

[@salomegonzalez1255]

Muy buena maquina original con gusto le da mantenimiento míster saludos

[@jasonbell5905]

Very nice work Sir! You seem to be very knowledgeable. One small suggestion, invest in or make some brass drifts and a nice brass mallet.

[@BurtonsAttic]

Thanks Jason, I have........

[@hollyhollerith3500]

Enjoying this series as I rebuild a Rockwell Mill. Question: how the heck does one remove the vertical drill stop screw that the two knurled locking nuts and quill guide ride on?

[@BurtonsAttic]

set screw

[@Ray-tl7pg]

Hey Burton, great videos. I'm almost finished rehabbing my 21-100 and have a question for you. Did you remove the step pulley from the motor? If so, was it difficult to put back on? To me it seems like an interference fit and I'm thinking I'll have to heat the pulley to get it back onto the motor shaft but am looking around for wisdom before going that route. Thanks.

[@BurtonsAttic]

Hey Ray- Yes I did. The vert motor has a set screw thru one of the pulley grooves. The horz is press fit but is strong enough to handle a three jaw pulley. I general with step pulleys if it's difficult to come off you need a fixture/collar type setting up with a puller to get it off without causing damage to the pulley. If the pulley material is thin don't use a three jaws!

[@Ray-tl7pg]

@@BurtonsAttic hmmm ok. I got the pulley off (with *much* persuasion, which I figured was just corrosion effects) but can't get it back on. May have to get it reamed out a tad.

[@BurtonsAttic]

@@Ray-tl7pg press back on or a little heat, no ream

[@Ray-tl7pg]

@@BurtonsAttic in case you're curious: turns out the motor shaft was a bit mushroomed (0.003"). I'm surprised that happened since when I was hitting it with a drift to separate them, the shat was always inside the pulley. But whatever, sanding down the shaft and also cleaning up the pulley bore with a 5/8 reamer (by hand) has corrected the fit. Now to figure out why the forward contactor circuit stopped working last night...

[@jransomtucker]

I tried to get the head rotating collar off today but had no luck at all. Is that a pin or a little allen head bolt in the little round end piece that connects to the opposite end from the side the wrench goes on? Also, do you remember the allen wrench size that fits the two allen bolts that attaches that collar assembly to the main body of the mill? Thank you! You really did do an amazing job with this restoration.

[@nicksoto1138]

how do you slide the head back and forth. I am hoping to get a Kurt vice but I am not sure if it will fit the vice seems super long. Also any recommendations on a vice. Thank you

[@dparry01]

I've really enjoyed your videos. They've been very helpful for my 21-100 project. Can you offer any assistance on finding the socket you used for the spindle nut?

[@BurtonsAttic]

Thanks Dan. O'Reilly auto parts, see PN @ timestamp 00:46. You must turn down the OD lip as seen in the video and it's a tight fit on the engagement points/pins but it will work.

[@rorybelter]

What bearings did you get for the head? I have a 21-100 I just got spinning then it seazed... barely got to make any cuts with it I guess it 60 years old...Haha

[@BurtonsAttic]

Rory I think it's 107KSF MRC and/or 108KSF MRC for the 2 spindle bearings. 1 each upper spindle bearing should be R16FF MRC . There are also two bearings in the brake hub. You can verify measurements on the Motion Industries website. Just search the part numbers and Motion Ind page will be there for that part #.

[@rorybelter]

@@BurtonsAttic Thanks for the info!

[@RoFFen10]

Just a tip: instead of maring up the end of shafts etc, make a copper or brass cup to slide over the end. Then bring out the big hammer! 😉

[@BurtonsAttic]

Usually use a soft face or brass drift for something like that but in this instance it wasn't moving and needed steel. I didn't show all my efforts. Good idea with the cup but I wouldn't make it fit to tight to whatever your striking as it may become lodged. I will keep that one in my back pocket for next time. Thanks

[@normsweet1710]

Well done, no hideous music except the rythem of the wire brush, emery cloth, and 400 grit paper soaked in kerosene ..... w-d 40 works ok too. Do you watch trade magazines or use Craigslist or other online sites ? Great work and I applaude your being careful doing the cleanup by hand on delicate stuff 👍

[@BurtonsAttic]

Thanks Norm, Yes CL and auctions.

[@dysaniasdemise]

got a product link or description for that scotch brite disc / grinder setup? Looked like it worked great!

[@BurtonsAttic]

I purchased them several years ago on Amazon. Just search scotchbrite disc their. Thanks

[@mediamattersismycockholste562]

If this doesn't have the potential for a KanoKroil commercial, I don't know what does!

[@BurtonsAttic]

Yeah I should have a lube sponsor!

[@fernandonogueira3290]

🎥 Beautiful work !. _ Congratulations! 👍 🇧🇷

[@scroungasworkshop4663]

Ok what’s your secret? You have that large metal bench and nothing on it. How do you keep it clear of “stuff”? Every flat surface in my garage ends up as a storage shelf quick smart and sometimes it really shits me. Cleaning up an old machine like that is a massive job for one person and must have taken weeks. Did you ever get to a point where you were sick of it even though you knew you had to keep going? Prepping for paint seems to take forever and then there’s waiting for it all to dry. Makes me wonder how a machine like that goes from brand new to being left out in the elements to just rot away but then again if it hadn’t been neglected people like us couldn’t afford to buy them. I find your restorations kind of mesmerising and can sit for hours watching them. I really like your style. Keep up the great work. Cheers Stuart 🇦🇺

[@BurtonsAttic]

Thanks Stuart, I find that while I'm working every single item will find it's way to the edge of that big table! Soon I have all this table with a ring of stuff around it. I have to think to put things away from the edge so that I have room to work! I try to clean up everyday and put away what I'm finished with so that I don't end up with my whole tool box on the table!

[@nvenuto]

Where did you get a red scotchbrite pad for the grinder? I've been looking for one

[@BurtonsAttic]

Search Scotchbrite wheel on eBay. I bought them sometime ago....

[@jefftaylor7511]

That doesn't look like the same quill or hardware. Nice.

[@jphoffman1]

What is your painting process? Do you use primer, and what type of paint are you using? I’ve just rebuilt a 1957 desalt radial arm saw and need to paint it, love your results.

[@BurtonsAttic]

Hooper since all of my parts are rust free prior to painting and the machine is indoors I'm not to concerned with using primer. I'm using 2 to 3 coats of enamel paint. I can't remember the paint or the video at the moment but I show the paint that I used in one of the middle videos of this series. Thanks for commenting.

[@edsoncleto8757]

Parabéns pelo Alex, lindo garoto,que Deus os abençoe sempre ;qanto a máquina fresadora, ficou belíssima, conheces o servico, tens paciencia e prazer. Edson Cleto. Brasil

[@mattkrull6097]

The big hammer always works ;)

[@jt6802]

Can you elaborate on what you did with the spindle spline? I followed your videos (and Breaking Taps video) and cleaned/painted/replaced all bearings on the vertical only version of this mill. Last step is installing the splined shaft into the pulley assembly. Did you take a few thou off the splined shaft to get your hand loose fit? No way mine is going in without some heavy persuasion. I tried filing top of spline shaft (hammer was necessary during disassembly) but I still can't get it together.

[@BurtonsAttic]

Jerry did you try fit the spline in every possible position? It may not fit in some positions due to wear, mine didn't. It really only fits in one way smoothly.

[@jt6802]

@@BurtonsAttic Yes, I tried all the positions. I did some filing on the end of the spline shaft to remove any distortion from removal hammering. I can still only get 1/8 to 1/4" started. I'm going to pick up a long 7/16" threaded rod and use that to draw it together. Thanks for your reply. I've enjoyed your videos and the rest of the mill refresh went well. (thanks to your videos)

[@BurtonsAttic]

If you hammered it to remove put a straight edge on it to see if it could be bent

[@jt6802]

@@BurtonsAttic thanks, I will check that. I don't think that's the problem as it binds right at the start.

[@jt6802]

@@BurtonsAttic Thanks for the straight edge tip. Shaft was not bent, but I still needed a little more filing on two of the splines at the end. With that change it slides on (in all six positions). Thanks!!!

[@ronbianca1975]

Great Job! What line of work are you in?Thanks, Ron

[@BurtonsAttic]

Jack of all trades and master of none which is often times better than master of one.

[@jonka1]

As a 'Jack 'myself I heartily agree.

[@lanierknives]

Where do you get your surface conditioning angle grinder wheels? I'm having a hard time finding ones that big. Thanks!

[@BurtonsAttic]

Hey do a search for scotch brite wheel, there are so many kinds now it's not even funny!

[@joeblow2675]

May I ask what your background is? You seem very knowledgeable and wise. Nice set up in what appears to be your garage at home. So my guess is retired white collar, has some time on his hands and a passion for restoration. Great videos also for someone just getting going. Tells the story very well.

[@BurtonsAttic]

Been repairing, rebuilding, installing, and making things my whole life and not white collar........

[@alexandermessier5509]

I know it doesn't help now but in the future try liquid wrench mixed with fuel injection cleaner as a anti-seize it works better than anything you can buy over the counter

[@dparry01]

I’m in the process of rebuilding this machine and wanted to replace the spindle bearings while I have it apart. Apparently the bearings were ground on the face so they can be preloaded axially. Since I don’t have a grinder, I was considering using some shim stock. Did you shim your bearings? If not have you had any issues?

[@BurtonsAttic]

Dan I didn't use an shims and there where none installed when I disassembled the head. I'm sure that I was the first to disassemble since the factory. I did spend a lot of time making sure that everything was fully seated and the preload was correct.

[@dparry01]

How did you set the preload on the bearings? Im getting some heat (just enough where the collets are pretty warm when I take them out) at the spindle quill where those bearings are located (last 3” or so if the quill). I must be getting some unwanted friction somewhere - perhaps from not setting the preload correctly. Any thoughts?

[@BurtonsAttic]

@@dparry01 My spindle doesn't get warm. What kind of lubrication did you use on the bearings? What did you do when you tightened the preload nut- How much did you tighten it?

[@dparry01]

Burton's Attic I used Red and Tacky grease. It’s a Lucas Oil product and came by recommendation for my application. I’ve since removed the majority of the grease I had applied and backed off the preload nut 1/4 turn or so. It only gets slight warm after running for 5 minutes or so now. I’m sure if I knew how tight to make the nut and used the right grease, it would be fine. I’m thinking about buying new bearings too. Any recommendations?

[@BurtonsAttic]

@@dparry01 If you tightened 1/4 turn too much, that's to tight. Or if you loosened 1/4 turn, that's too loose. Make sure the races are fully seated and snug up the nut and jam. I used spindle bearing type grease. NGL 0, the grease you used is NGL 2.

[@timsmotorworks]

A couple questions: (1) what grease/lubricant did you use to pack the bearings on the quill bearings? (2) you used a "non-Angular" bearing selection for the dual stack bearings sets. There is discussion in the Rockwell community as to whether angular contact or non-angular contact bearings are correct. How have your bearing selections held up? What about issues of pre-load and getting the inner races to maintain contact? Thanks.

[@BurtonsAttic]

Synthetic grease. I installed exactly the same bearings that came out of the quill. Deep groove single roll ball bearings. Working great so far with no additional adjustment needed to this point. I did spend a lot of time getting the preload dialed in. TIR is around .0002ish. My test indicator resolution is .0005, need one that is more accurate.

[@GodzillaGoesGaga]

Did you get a load of drawings or was this a figure it out as you go project ? Nicely done!!

[@BurtonsAttic]

Just have the manual with parts diagrams, thanks

[@charlesdefrancisco5056]

Hi ...you really did a great job and are very talented A small suggestion...KROIL....KANO LABS this stuff is the best..blows PB Blaster away..only direct through them...you won’t be dissapointed

[@superkas]

May I kow what your camera is ? Thanks.

[@BurtonsAttic]

Panasonic

[@williamfissell1694]

Hi, I have the same mill as you know. 2 questions- still working on thinking on the overarm support. I think that by the book you are supposed to remove the vert head and install the overarm. Way too much hassle. What do you think abut making an R-8 stem with a large heavy bushing on the end to hold the horizontal arbor? I supposed you could even just make a stem to slide into an R-8 collet. Also, why on Gods green earth did Rockwell use deep groove radial ball bearings instead of tapered roller bearings in the quill? Or do you think the ones you removed were later replacements? Google doesnt help defining what the original Rockwell part number really means. Thanks!

[@BurtonsAttic]

Will, yes you are suppose to exchange the head for the support and your right it would be a hassle. I haven't come up with a good solution as of yet. I have seen the R8 rig but I don't know that it would be rigid enough and would be difficult to align. As for the bearings I just put in direct replacements but I'm sure you could engineer any configuration you would like if you have a lathe or maybe you don't even need a lathe if you find an off the shelve bearing that will work.

[@williamfissell1694]

@@BurtonsAttic Yes, that was my reservation about the R8 rig. I ordered the same bearings you did except maybe mine were c0. The 'other way' of dealing with the overarm support ie making a bracket that sits aft of the vertical head both robs you of room and also makes for a real problem getting the arbor in. You would think we could find the overarm supports on fleabay somewhere as noone seems to have used them

[@noahhastings6145]

Did you just pack those bearings with magnum ice cream? Nice.

[@BurtonsAttic]

It keeps them from overheating!

[@tnekkc]

I rebuilt the head on my Rockwell 21-100 vertical mill. When the quill came out, it tried to cut off my hand.

[@BurtonsAttic]

What came loose?

[@tnekkc]

@@BurtonsAttic On the Rockwell 21-100 drawing item 88 = Quill 450-01-377-001 That is a 10 pound cylinder with a rack gear cut on the side that slid straight down and pinned my hand to the mill vise. In groups.yahoo.com/neo/groups/rockwellmillingmachine/photos As Clark358 my pics are between 2009 and 2011

[@mtrunk8570]

I know what what you mean about a bigger hammer, peek a boo lol! Going to be sweet when you get done!

[@BurtonsAttic]

Sometimes that just what it takes! Yes it will!

[@haydenbritt1237]

1:58 Press F to pay respects. F

[@MegaViking00]

Finally a media blaster😂

[@pinpatchyeah7987]

Nice!!!

[@BurtonsAttic]

Thanks Pinpatch!

[@mcorrade]

So I'm curious on something? Whenever I rebuild an old machine/tool I have to take tons of pictures to make sure I know how it goes back together. I never see any utubers doing that......Is it just me and my bad memory or did you have to take pictures? In your case you probably didn't need to due to your knowledge :)

[@BurtonsAttic]

When I take something apart I lay it out in order of disassembly and keep all fasteners/clips/springs/widgets with the component that it's for. On occasion during a project I will refer to a parts diagram or the video that I shot but not very often. Most of the time I can just look at it and determine the right way to assemble.

[@orsummerton]

Remember kids, always use Magnum ice cream to keep your bearings nice and lubed up. Ben & Jerry just won't do, too many chocolate chip flakes and other crap.

[@samalverio3157]

have you ever heard of using kerosean or break free oil cause I didn't see you use any...my god

[@foghornleghorn3478]

I dunked mine in evaporust

[@KodyBear5605]

Alright Brother, what is your address? I need to send you my Mill so you can work your magic. LOL... Man, you do superb work. Thx for the entertainment...

[@BurtonsAttic]

Thanks Dave! That's really expensive shipping!

[@AndrewMurphy8383]

MINI HLVP GUN WORKS JUST LIKE TOUCH UP GUN BUT THATS ME

[@BurtonsAttic]

I have a large Devilbiss HVLP gun. I prefer to use the touch up gun because you can hold it in multiple positions due to the thumb trigger allowing the spray to get where you want it on oddly shaped parts.