Metal Lathe Tutorial 12 : Surface Finish

[@topytopy]

Thanks so much for the videos Quinn! I don't use patreon but I wanted to donate (more than $10) via paypal, is there a way I can do that without doing multiple transactions?

[@Blondihacks]

I'm glad you asked! Over on the right side of my blog (blondihacks.com/) I've recently added new PayPal options. I hope one of those will work better for you! There are one-time and recurring donation options there now.

[@topytopy]

@@Blondihacks Awesome. Thanks heaps! Keep up the great work!

[@jacobytheo1766]

You all probably dont care at all but does someone know a trick to get back into an instagram account? I was dumb lost my password. I love any tips you can give me

[@zakaikamdyn2172]

@Jacoby Theo instablaster ;)

[@jacobytheo1766]

@Zakai Kamdyn I really appreciate your reply. I got to the site through google and im waiting for the hacking stuff atm. I see it takes quite some time so I will reply here later when my account password hopefully is recovered.

[@Capt_Duffy]

Used to be an Airline Pilot, lost job due to this Covid stuff, always wanted to learn to operate lathe Machine, so decided to pick up a new profession and become a machinist at the age of 48 😂joined a training centre, but to be honest with you, im learning more by watching your videos by applying the techniques you teach....so its a big big help for me...tnx

[@pauldavidblakeley1827]

I hope your leaving aviation was because you declined to be a test animal and not because of the numerous side effects of the "jab". I am a retired prosthetist, 74 y/o, but just now learning how much fun it is to machine solutions to engineering tasks. I don't have the luxury of running down to HD or L as we are building a home in the mountains of Panama.

[@catchameatamwithalex7550]

what is bro yapping about@@pauldavidblakeley1827

[@belindastanush5464]

Pat Stanush In my opinion you are one of the best of the youtube machining instructors! I like your thoroughness and explanations of why you are doing something.

[@Blondihacks]

Belinda Stanush Thank you! That’s very kind. 🤗

[@prodoverjeff2876]

I wish I had had your explanations around when I was a new guy machining many, many years ago. So much of this I had to learn by myself, so many hours lost. Even the concept of how nose radius works is only a few years old for me! Smart young lady. Quinn! We needc more like you in the machining biz.

[@okarakoo]

You are a very talented instructor, Quinn, you are eloquent and logical in your delivery. You and Mr Pete are my favorite machining teachers on the 'net!

[@Blondihacks]

Thank you! That's great company to be included in. Mr. Pete is terrific.

[@trentonjennings9105]

I'm thinking of getting a mini-lathe to help with my repair and restoration projects, so I've watched probably two dozen videos on the subject, but this is the best one by far for "lathe 101" type knowledge. I'll have to view your other vids now.

[@Blondihacks]

Thank you for the kind words!

[@kroghsmachineshop4708]

Buying a lathe is dangerous😉 I bought a small combined lathe/mill for about 3 years ago, now I'm using a lot of my spare time working with it, it's the best tool I ever got, I'm learning to use it from watching videos like Blondihacks I couldn't have gotten started with out KZbin 😊

[@oleksiivinokur2195]

Thank you Quinn from Ukraine, for such a cool playlist about machining!❤

[@1966madguy]

Just started using a lathe and wanted to say thanks for your videos, its great to see someone who doesnt baffle you with gargon and science, my finish is so much better after watching your videos, i even ground my first tool and it worked great, Thank You.

[@joshuaerkman1444]

This is university level quality education! Thanks for your Expertise, humor and knowledge. My instructor assigned this as a primer for my Manufacturing Engineering Lab.

[@Blondihacks]

Wow, thank you! 😁☺️

[@edwardgiovannelli5191]

thirty two years in the business, I like your videos. Clean, clear, unpretentious, entertaining, and I even learn something every once in a while. Good work!

[@MarioGonzalez-ey7xd]

As a young aspiring machinist, thank you. You’re answering questions I frequently ask and explain it to where it’s easy to understand!

[@shannonhunley3815]

I love this video. As Mechanical Designer I always listen to the advise of our tool builders. This is perfect.

[@petersargent1255]

Thanks!

[@mikewasowski1411]

Omg! Quinn! This is exactly the rubbish finish I was getting! I’ve only just discovered yiur channel. Where you been all my life! Thanks 😊

[@alanbradley3196]

Hi, what a breath of fresh air ,clear explanation of the basics ...will look at the rest of your vids ...keep up the good work ..

[@Blondihacks]

alan Bradley I’m glad you found it interesting! Thanks for watching!

[@GogebicYooper]

Over the years I have met a *few* people who are doing what they should be doing. Quinn Dunki is one of them.

[@andyd1006]

I worked in a production machine shop when I was a younger adult. I was the shop grunt. At 43 I'm going back to school for machining. Love your videos.

[@elmadouf]

I just wanted to stop right there for a minute to comment on the quality of this content. Okay back to binging it. Came here from Pask Makes btw.

[@msumungo]

Surface finish is directly related to long term fatigue strength of components. More polished means less surface micro cracks which means longer component life.

[@Pyle81]

New hobbyist machinist here. Ive made it to 12 and have been taking notes. Thank You this series, Im definitely learning as we go. As in this video I learned the emery paper trick from watching Abom79. Both of you have very interesting techniques. I can honestly say it was his channel that brought me to yours. Thanks again. ✌

[@brentconnock2513]

Quinn, very well spoken, which helps a great deal ... everyone doing a youtube vid should watch yours before "jumping in" as it were.

[@paulscharf7960]

Thank you for your videos. I took the MTO class in the Navy as an emergency capability for my submarine, but then did very little machining after. Great refreshers for me. Thank you.

[@mustang2440]

I'm absolutely impressed with the amount of information you provide almost non-stop! I've given up waiting to hear even a single "ummm"! Great work that merits a donation!

[@jamesfield5346]

The cold bluing topic you brought up mKes so much sense. No wonder my cold bluing didn't turn out as uniform and dark as I've seen it. My finish essnt good enough. Wow thank you

[@austinedwards9846]

I watch most of you vids and really enjoy the how to and into machine work videos. As a beginer I find it very overwhelming. I enjoy when you explain the different tools and what they do and how they work. Thanks for the great work.

[@zombiewelder9319]

I'm well past the basics of machining , but I'm getting a bit of ASMR out of this :) Thank you :)

[@Blondihacks]

That's as good a reason as any to watch. Glad you're here. :)

[@kymcopyriot9776]

This is great stuff for someone like me who has acquired a lathe and is diving in to the whole process.

[@Blondihacks]

Thank you, and thanks for watching!

[@raymondj8768]

hey Kym check out this old tony hes a bad ass

[@DavidLindes]

@@raymondj8768 Tony's pretty cool, but IMHO, Quinn is a much better instructor. :)

[@raymondj8768]

@@DavidLindes ill take a look thanks dude

[@KW-ei3pi]

Awesome video. Well presented. Good speaking ability. Very knowledgeable. Thank you

[@Blondihacks]

Thanks 🤗

[@roadkill5333]

Her manicurist also appears to be just as well trained!!

[@TheArozconpollo]

OMG this is the information I needed! Newbie with rebuilt 7x14 mini lathe. Watched many videos on how to make HSS cutters, but you explain WHY they are shaped as they are. No one talks about tool radius and why that is essential to good finish. Thank you!

[@waydejaynes1291]

Very good info. Good to see us "shop guys" aren't just guys! Neat stuff 👌

[@rwiliamson8051]

Just found you. Good basic info nicely put together. Now I'll have to go & watch all your other videos.

[@Blondihacks]

Thanks for watching!

[@lucasnjtube]

I *really* enjoy the dry humor. I think I developed my taste for it from watching Mr. Pete.

[@robertevans6481]

A apple for the teacher...even though I don't have a metal lathe,this is most helpful with my wood lathe,and carbide tools..and yes round cutter gives me a smooth finish. Great video

[@baacco.3658]

Instant sub! I just finished restoring a south bend 9, and am so grateful for excellent videos such as yours! Keep ‘em coming!

[@Blondihacks]

Awesome, I love old South Bends!

[@PeterHollingshead]

Quinn, you're the best. Thanks for all the guidance!

[@rectorsquid]

"Rings Off" is a sign I need next to my rock climbing gear and kayaking gear, as well as in the shop! Thanks for the great video; I just got a small Asian lathe for free and since it's one of the smallest you can get, this information was extremely helpful.

[@usethenoodle]

@Blondihacks Hi Quinn, I just purchased a new Grizzly G0752Z and I am in the process of leveling the ways. I'm waiting for my machinist's level to arrive. I cut the "dumbbell" and as far as I can tell by the mic I'm .006 out at the tail. I have the shim pack so I'm ready to shim as soon as I know which direction I need to go. My cutting tools are the pre-ground HSS set from Grizzly and another HSS set I purchased off of Amazon. None of these have a round nose turning bit. All very sharp points. My surface finish is pretty much crap. I have ordered some tool blanks, a set of tool face angle gauges and I have a great 8" bench grinder. I'm going to grind up what I hope is a better tool to improve my surface finishes. I really appreciate your great series. I have never done any machining so I'm learning a lot. Thanks again for all your tips and very helpful instruction. I have joined you at Patreon as well.

[@kimber1958]

TKS BIG-BIG. HACKS. You are making a difference in my journey in machining

[@clintchapman4319]

Great info! I'd like to add something that helped me out tremendously. If one uses carbide insert tooling, find the inserts with a positive rake angle. Most of the cheap sets have a zero degree or sometimes negative rake angle... Once I realized this and switched to inserts with a positive rake my surface finishes improved 100 percent.

[@mpetersen6]

A good place to start with carbide is the sets of five tools using TPG inserts.

[@Miata822]

This counts as engagement. I enjoy your videos.

[@Davesobscurevideos]

I love your channel! I’ll add as someone with no machining experience, but some DIY nickel plating experience, a better surface finish seems to aid in the plating process a lot more for some reason, much like you mentioned with cold bluing.

[@SuperMadpom]

Spent an afternoon taking apart and cleaning the protective coating from the parts of a brand new baby lathe ( my first a SIEG C0) before greasing it and re-assembling it. Tried machining some steel bar with one of the braised carbide tools supplied but got ripples in it. One blondihack video and a less spikey tool later and i've got a very acceptable finish for a first effort. Need a dial gauge and a bit more time to get it all dialed in but it looks like it will do some fun small stuff very nicely. Thanks for a great set of videos.

[@savage11smw33]

I too have mastered the art of bad finishes! Lol Another awesome tutorial as always. As others have stated, you are the best!

[@rollerco]

Very professionally done. I was very impressed.

[@Blondihacks]

rollerco Thank you! 🤗

[@georgepeters5396]

Thanks for this video, Quinn. It's a big help. I am starting back lathing ferrules for my bamboo fly rods. My first effort was not smooth! By the way, Tap Magic is made here in my hometown of Little Rock.

[@JonasMarcinko]

Thanks for the informative video!

[@PatrickHoodDaniel]

Excellent explanation. Thank you so much!!

[@BernardSandler]

"Brass makes every machinist look good." We have now discovered Clickspring's secret.

[@DavidLindes]

Oh, but this is only one of many secrets. :)

[@JasperJanssen]

Be fair though, his tool steel and spring steel parts are just as good.

[@alicebingham9796]

i feel like clickspring makes brass look good

[@orangetruckman]

Haha, good one 😂

[@dans8169]

Thanks for the advice. This is a great video. I bought a 9a southbend that has been rebuilt top to bottom in almost flawless shape. With v belt drive and tapper attachment. I am learning to use it and grind tools. I will try preground tools I am inexperienced with lathes. But trying my best to learn.

[@RagsdaleCreek]

Nice you make a good teacher,awesome job. 👍👍👍👍👍 Watching in Alabama!

[@Blondihacks]

Cheers! 🤗

[@jamesharvey446]

In another life, I was an R&D Machinist in the turbocharger industry. I worked with angstroms and millions of an inch. That was a long ago and now I make wind flags for target shooters. Most of my work now is with a Hardinge HC Chucker and a Hardinge tool room lathe. I find a lot of poor part-time machinists out there that have no or little experience with a variety of operations or materials. I guess they were on production lines running one machine. Your stuff is basic but very helpful. Keep up the good work.

[@michaelmolter8828]

We have a media blaster at work. When tolerances aren’t super tight I like blasting it in the cabinet for a bit to remove all the tool marks. Makes my mediocre parts look much better!

[@juliejones8785]

Another great video Quinn. You didn't mention my favorite which is using maroon scotchbrite as a quick surface polish. I don't often use emery cloth, but instead just a quick pass with the scotchbrite and the finish is very good.

[@JamesGibbard]

Such a good video. You explained everything so clearly. Thank you Quinn!

[@Blondihacks]

Thank you for watching!

[@JohnBare747]

Very good explanation Quinn will be of help to a newbie. Good work.

[@Blondihacks]

Thank you! 🤗

[@templer4295]

Thank you for taking the time to make these videos they are very helpful!

[@Cabmaker]

v Very well done video. Clear and easy to understand for new machinist and answered many of my questions about surface finish.

[@Blondihacks]

Thank you, and thanks for watching! ☺️

[@brettphillips8650]

“What am I doing with my life”. Sounds just like something I might say about myself. Must be a machinist thing. We’re constantly trying to make ourselves better. On the other hand, my wife and friends all say that I’m too hard on myself. Thanks for the chuckle, and the very well done video. I’ll be subscribing and looking for more!

[@Blondihacks]

Brett Phillips Haha, agreed! Thanks for the sub! 🤗

[@kelvin0mql]

“Negative comm... er... ENGAGEMENT!” LOL You rock.

[@DavidLindes]

hear hear!

[@frankkelly1433]

don't listen to idiots

[@hicksdp]

Outstanding content. I would love to see videos on cutting threads and perhaps a series on milling machines.

[@Blondihacks]

hicksdp Thank you very much! You’re in luck, there definitely will be threading covered, and there will be a mill series as well!

[@mniteen9486]

You are good teacher 👍🏻👍🏻👍🏻

[@nanupin9692]

A girl with a lathe. Is the very first time I see this. Im a guy, so... I love you. jajajaja. Greetings, from Buenos Aires, Argentina.

[@rynohorn3819]

Thanks for sharing some of these basics! I'm always "preparing" to start relearning lathe basics on my new old Rockwell and feel more confident now. SUBBED and rang that bell!

[@Blondihacks]

Excellent! Thanks for the sub and welcome to my channel!

[@elonlovesyou]

Looks like I have a new favorite channel.

[@Blondihacks]

Aww thanks! Welcome! 😁

[@zombieprinting2670]

new sub. nice tips and trix, thanks. been having nothing but bad surface issues with carbide inserts on aluminum

[@Blondihacks]

Thank you for the sub! Welcome to my little channel!

[@93me11]

Just stubbed upon this channel, really good info here, I’m gonna subscribe!! 👍

[@Blondihacks]

Thanks for the sub! 😁

[@erniehenshaw4065]

Great Tutorial.BRAVO.

[@daveys]

Excellent tutorial Quinn, many thanks!

[@ego73]

Female machinist???? YAY!!!!!! Go, Quinn!

[@Blondihacks]

Ian Lydon There are a few of us out here. 😉

[@ego73]

@@Blondihacks Makes me feel a little less nerdy, eh. I mean, imagine being at dinner with a girl and having a project on your mind when she asks, "What are you thinking about?". LOL.

[@Capnmax]

Thanks Quinn!

[@Disneymkvii]

Thanks for this tutorial! It really helped me understand surface finish a lot better. Last night I was creating steel sandpaper rods. This morning i've got a round mirror barcode! Now to figure out why I get the lines along the material....

[@TheDogWalksTheDog]

Very concise videos I’m learning lots quickly thanks.

[@clivewood2148]

Excellent video's Quinn - thanks for producing them🤓

[@007tallguy]

hey, just found your channel today, been watching (and learning!) from your vids! one little tip after the final sanding.... flip your sandpaper over and use the "back" cloth part of it! the workpiece will be super smooth and shiny! :)

[@MasterBuilderofTruth]

Thanks blondie I used your video today worked great

[@sten1939]

Great as always

[@paulmorrey733]

Thanks Quinn

[@darrenlewis3501]

Excellent video . Thanks

[@richardbartlett4075]

Really well explained, thank you. I seem to have a problem turning aluminium, with large valley like grooves. New at this, making parts for a motorcycle repair.

[@chefe2152]

I feel like I’m seating in machining course!, so we’ll explain and shown ,thank you so much

[@conrat2000]

Thank you so much for these videos.

[@steamsearcher]

I used this emery paper trick to slowly creep up to a super fit on a chuck backplate! Not the easiest as it was a bore onto the spindle and checked by removing the chuck and piece from my first lathe. I have 6 in total and 2 mills. David and Lily... Who assists. From Reading England!

[@Blondihacks]

Excellent work! Emery paper is great when you REALLY need to nail a fit.

[@ebayollis]

Great info for starting out at as a machinist

[@spinyuk]

'engagement' :D Very much enjoying the vids though, I have a veeeery old (circa 1952 I think) and tired boxford 'student' lathe that i'm learning to use, so stuff like this vid is super useful.

[@Blondihacks]

Excellent! I love the old machines.

[@Gottenhimfella]

All good info. You did forget to mention another couple of important reasons why good finishes are sometimes important : for interference fits, if the surfaces are unduly peaky, those peaks will get knocked into the valleys during assembly, changing the diameters of the parts, and the desired elastic radial strain will not be established to keep the joint tight. It will also take undue installation force to achieve that undesirable situation. And for running fits (say a piston rod sliding in a nose bush of a hydraulic cylinder) a peaky finish on one part will cause abrasion of the other part, resulting in premature wear and loss of performance.

[@Blondihacks]

Great additional info- thanks for posting it! I always have to make tough choices about what info to include in these videos to keep them from being an hour long. 😁 I appreciate when people add (nicely) things that I missed in the comments.

[@MultiModalLife]

Great video! I have had issues in the past with bad surface finish and am trying to learn how to make my parts shine. I had never thought of using sandpaper to achieve the final dimension, though I am embarrassed to admit it.

[@S-P-A-]

O my! When you ran your nail over the the metal at the start it was like nails down a black board 😬. Fantastic videos tho. Just purchased a lathe so am studying your videos and see if I can apply myself. Really enjoying it. Funny how time fly's when your using it. Going to call it the time machine 👍

[@thegunguymartin]

Thank ya Quinn !

[@mcqcjc8409]

Thanks for all the knowledge

[@IvanStepaniuk]

I'm not ready for an engagement just yet but hey, I subscribed! Would love to see some finishing tips on plastics, PMMA is a nightmare.

[@Blondihacks]

Haha, thanks for the sub! I'll be talking about plastics at some point, for sure.

[@penpal222]

Thanks for learning me stuffs!

[@kyleeverly9243]

Well this should help my chattery surfaces a bunch. Thanks!

[@robertparker2420]

Subbed....well explained and exactly what I was looking for!

[@Blondihacks]

Thanks very much!

[@VisDeux]

Quinn, I really enjoy your lathe series, thank you and keep up. This said I have to mention every time you put your fingers near that rotating meat crusher 3-jawed monster, I start to get a little sweaty. I would probably be too afraid to use the emery or file on a powered lathe, don't trust myself enough.

[@Blondihacks]

It's good to have a healthy respect for that chuck, but you also need to work close to it for a lot of reasons. The most rigidity is close in, and a lot of small parts leave you no choice. That said, camera angles often make it look like my hands are a lot closer than they are. Not to worry, I'm being safe. Thanks for watching and for your comment!

[@Enzo6006]

great video! thanks!

[@SkullyWoodMetal]

Another great video. Thanks much!!

[@EdAgers110]

Great tutorial! Subscribed

[@Blondihacks]

Thank you, and welcome to my channel! 🤗

[@velas5977]

Awesome information....thank you

[@garrymccoy4053]

Quinn, Just came across this video, now i will have to go back and look at the rest. great content and presentation. nice to see a young lady using her skills (and not T&A) to get subscribers. I like your laid back approach. keep up the good work.

[@ErnieNoa3]

Thanks for some very good videos.