Metal Lathe Tutorial 15: Parting

Рет қаралды 231,160

5 жыл бұрын

This is Lathe Skills, a multi-part series to help you learn basic machine shop work. Exclusive videos, drawings, models & plans available on Patreon!
/ quinndunki
Watch the whole Lathe Skills series at
• Lathe Skills
Here are links for many of the tools that you see me using:
(I earn small commissions on these links)
• Chamfering Tool : amzn.to/2IJsAUs
• Deburring Tool : amzn.to/2ItUtRb
• Tapered Reamer : amzn.to/2Gn0b3G
• Nicholson files : amzn.to/2VcHkls
• Nicholson needle files : amzn.to/2GZWcMl
• Mitutoyo dial caliper : amzn.to/2IMIxJE
• Mitutoyo micrometer set : amzn.to/2GtICPx
• Brownell’s Oxpho Blue : amzn.to/2YhZTmR
• 1-2-3 Blocks : amzn.to/2EvAsGq
• Dormer center drills : amzn.to/2X7U6ij
• Mitutoyo edge finder : amzn.to/2G36omq
• Mitutoyo dial indicator : amzn.to/2H09gBr
• Mitutoyo dial test indicator : amzn.to/2E5lRQw
• Starrett automatic center punch : amzn.to/2DCI7C9
• 6” Divider : amzn.to/2GTncM3
• NOGA arm with magnetic base : amzn.to/2U2bGTI
• Collet Block set : amzn.to/2UkF1vZ
• DeWalt drill and driver kit : amzn.to/2U2bGTI
• DeWalt portable band saw: amzn.to/2U4Mhsw
• DeWalt band saw blades: amzn.to/2H2J4X0
• Dykem Layout fluid: amzn.to/2U7KQts
• High Speed Steel parting blade : amzn.to/2YcdYBv
• High Speed Steel blade holder : amzn.to/2JgO0IK
• High Speed Steel tool blanks : amzn.to/2H1qoqr
• Grizzly Pre-ground tool bits : amzn.to/2H4yr5z
• AXA tool holders : amzn.to/2V1gOHl
• Quick Change Toolpost : amzn.to/2Ea8EWR
• Norton oil stone kit : amzn.to/2EbLEH3
• Norton small sharpening stone: amzn.to/2PQwex9
• Tap Magic cutting oil : amzn.to/2U68wOJ
• WD-40 w/ smart straw : amzn.to/2GYV8rY
• End mills: amzn.to/2U76Vsf
• Milling machine starter pack: amzn.to/2tA2M4e
• Oomoo 30 silicone kit : amzn.to/2tCJDyQ
For more cool shop projects, check out
www.blondihacks.com
Want more content like this? Try these places:
Blondihacks on Instagram : / blondihacks
Blondihacks on Twitter : / quinndunki
Blondihacks on Patreon : / quinndunki

Пікірлер: 330

@user-ws6wb5fn8d Ай бұрын

This women dominates what is typically thought of a MALE profession. It is clear to me, she does NOT have to go so slow in her demonstration, but I am thankful she does. This lady is AWESOME.

@richardfarabaugh7604 5 күн бұрын

Isn’t she though. Shri is one of the best teachers I’ve seen on KZfaq period! Even though I know all of this so far I am enjoying the hell out of watching her tutorials and I’ve even picked up a few tidbits and it’s a great refresher.

@richardfarabaugh7604 5 күн бұрын

Your parting demo was as smooth as it could be. You part with the best of them. It is scary but as long as you do EVERYTHING as you stated in your tutorial it’ll go just fine. I’ve made chatter, I’ve shattered blades, I’ve bound up my lathe and it’s all scary but as long as you take your time and do it right it can be very satisfying. Especially when you get it right and it’s new to you. It’s a definite moment of marching pride. Machining is all about pride for me. I am a big time perfectionist and just knowing the precision and all that is there even when it doesn’t need to be make me a happy camper.

@derekwilkinson7939 5 жыл бұрын

I’m 66years old and now retired but not a day goes by were I don’t learn something new. I don’t watch TV KZfaq is my only source of entertainment and education. A great deal can be gained by watching people like yourself who take time out to make these videos. Thanks very much for sharing your knowledge. 👍

@Blondihacks 5 жыл бұрын

Excellent! The day I stop learning is the day (I hope) they put me in the ground. Glad you're enjoying my videos! 😀

@CharlieTechie 3 жыл бұрын

@@Blondihacks Agree completely. I am 73 and take the time and money to learn new things everyday. Life-long learner!

@williemakeit5660 2 жыл бұрын

The boss I did my apprenticeship under taught me that the day you think you know everything, is the day you know nothing. I'm 62 yrs old and still learning something new every day.

@lilyli-or3ov 6 ай бұрын

Perfect English and speaking at a comfortable speed, I don't need to see the video twice to understand what's going on because your presentation is perfect! I think you're the best so far! And very good safety advices throughout. Thanks and Subscribed!

@kinbolluck476 2 ай бұрын

😮

@cowsongs 7 ай бұрын

"Surefire way to end your day by picking a hacksaw blade out of your spleen"... LOL You do such a great job of stressing safety with a slight touch of humour so people will remember the lesson. Your machining videos are fantastic - most clear, easy to understand I have ever found. Great for small-machine hobbyists (like me).

@gr1nder07 4 жыл бұрын

"Your rigidity has to absolutely be on fleek" 😂

@rogeronslow1498 2 жыл бұрын

And in English as opposed to American?

@ssl3546 4 жыл бұрын

This is my new favorite machining channel - Clickspring stopped explaining what he's doing years ago (and hasn't posted any videos in months) and while TOT still has a place in my heart he doesn't pack nearly the amount of information in that you do. Great production values, great writing, sound quality is good too.

@Blondihacks 4 жыл бұрын

Thank you! That’s high company to be compared to. ☺️

@nanupin9692 4 жыл бұрын

Parting on the lathe, it's like a horror movie. Even after all these years, when I have to cut a piece, it's always creepy. Full anxiety. But that anxiety helps not to make mistakes. Greetings, from Buenos Aires, Argentina.

@toolscrounge 5 жыл бұрын

Parting is such sweet sorrow!? LOL! I’ll see myself out now. 😆

@bouffant-girl 8 ай бұрын

There are many machinist videos which are very interesting on KZfaq; but you are definitely the best Instructor of Machining.

@sean.chiarot 4 жыл бұрын

This is hands down THE BEST video on parting on the internet, bar none! If it still weren't so damn scary I'd love parting now! Thank you, Quinn!

@Blondihacks 4 жыл бұрын

Aww thanks! So glad I could help

@clayz1 Жыл бұрын

I learned parting using rocker toolposts. And HSS tools of course. Just three more dimensions of difficulty (dementia of difficulty). That was in the 1980’s. Parting tools and tool holders have all improved to the point where parting is predictable nowadays. That’s all I have to add. Bondihacks video is nothing less than the best instruction for parting with HSS tooling. At the shop we have moved on to carbide insert tooling and we have never looked back. Great vid Blondihacks. I am impressed how some ‘hobby’ people know their subject from one end to the other, just out of the love of doing.

@Jon-ko3vv 3 жыл бұрын

This is Tina Belcher all grown up as a machinist. Love the vids good work.

@AlanCarr-qm4qh Ай бұрын

Love this lady - managed to part off steel bar after many failures over the years. Not to mention the great tips in Quinn's other topic videos.

@tsalluzzi 4 жыл бұрын

i know it's a recurring comment - you're very good at explaining things - that makes you better than a teacher, and more like a machining coach.

@Blondihacks 4 жыл бұрын

Thank you! Kind words are always welcome. ☺️

@bobg8378 4 ай бұрын

I know this is an old video but this had the most helpful tips I've ever encountered on KZfaq. Thank you

@crichtonbruce4329 2 жыл бұрын

I used to suck at parting (still not great) so I would use the parting tool to start the cut, go as far as I dared, and then finish with the hacksaw. This created a nice, accurate shoulder for gauging the squareness of the saw cut. Quinn is the best teacher out there!

@MechInvent 9 ай бұрын

I still do this lol.

@CharlieTechie 3 жыл бұрын

After watching dozens of your videos, I just had to look up the history of the expression “Bob’s your uncle.” Interesting history but have to say “Fanny’s your aunt.” is just too funny. Hands down, you have one of the best machining channels on KZfaq. I have learned so much over the few months on how to appropriately us my Little Machine Shop lathe and mill. Thanks for you time and effort, it shows brilliantly through your videos and content.

@nicholasdautel1228 3 жыл бұрын

No more sweet sorrow. After following your directions I was able to part using the parting tool for the first time. Slower the speed, the better. Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

@stewartmackay539 4 жыл бұрын

Excellent, -- Clear, precise, articulate. Brilliant, thank you.

@RagingMonkee 3 жыл бұрын

This video series is one of the best of seen on this topic. Thank you for making these!

@scottdodge6510 Жыл бұрын

Thanks Blondie Hacks. Could have used this video years ago. I have painfully learned these techniques through trial and error. Wish I would have watched this video first.

@Papi--jb1yo 3 жыл бұрын

Thank you, thank you, thank you Quinn. I have been battling and failing at parting off on my mini lathe ever since I inherited it, to the point that I had simply given up. I had searched the interweb and KZfaq and tried many solutions to no avail. One day I discovered a channel called Blondihacks (insert anjelic chorus here) and my world changed forever. While cruising your back catalogue and soaking up the knowledge generously provided, I discovered your advice to shim my hss parting blade. Voila! This turned out to be the holy grail I had been searching for. I used my tweaked tool today and it worked perfectly, just like the big boys do it. 😁 You even inspired me to post my first ever KZfaq comment. Thanks heaps for your excellent videos Quinn and stay safe in this crazy time.

@Blondihacks 3 жыл бұрын

Awesome! Glad I could help! 😀

@randywl8925 3 жыл бұрын

Something as simple as your advice with the safety button at the beginning of this video. Advising to hit the button a few times just to get used to it. I bet very few people ever would do that, but they should. Excellent the safety advice.

@minimumexpectationsdiy6013 3 жыл бұрын

Excellent video. Good production values and great advice. I've watched a lot of videos on parting, and this is probably the best.

@mr.noneyabidness 3 жыл бұрын

Thank you, this had so many of my issues addressed. You rock, keep it up.

@johnhagan7645 2 жыл бұрын

Quinn I find you do a great job on lots of detailed information on all your videos. Well done.

@RelentlessHomesteading Жыл бұрын

Some great points. I was doing my first partings the other day. Unfortunately - I was working on a 2 foot long bar through the headstock - but that end was not confined to center. Registered the 4 jaw chuck to < 1 thou. ...HOWEVER - that was the STATIC position. But in running, the far end was flexing and inducing a harmonic. The cutting got scary real fast - and explained why the facing and turning was so poor. Got halfway through the parting cut and decided to finish with a hacksaw. Was a good learning experience - gotta make more tools for this guy. Finishing off the cut off piece went very well and confirmed the centrifugal force issue. Mine is a 1953 Logan 920 11" x 24". Found one in very nice condition - but stripped it totally down and cleaned, refined, replaced and painted. And it still works, ... LOL. And as you said in a video - one needs to take the size and weight into account. I am working by myself and moving this around and getting the legs under this 700 pound hunk of iron required some real jig work. Enjoying your excellent tutorials...

@terrycannon570 4 жыл бұрын

Thanks Quinn. I really like the way you teach. I have been around toolrooms for almost 40 years and never thot of shimming the sides of the blade in the holder. It only makes sense. I repost your videos sometimes to Home Hobby Machine Shop and Tools. I consider you one of the better teachers for the home hobbyist. Thanks again.

@Blondihacks 4 жыл бұрын

Thank you! I really appreciate the sharing and reposting. It helps grow my channel. 😁

@jonlihou668 5 жыл бұрын

Wow, such a crystal clear explanation. I'm ready to give it a try again, thanks!

@Blondihacks 5 жыл бұрын

Go for it! You can do it!

@DavoShed 3 жыл бұрын

Hey I just came across this video last night and I was out into the shed today. Did my first successful parting operation in 30 years! Ok I did take 25 years off. My old lathe doesn’t have a lot of positives going for it in the parting department. The golden nugget for me was that the parting tool holder is machined square vertically and the blade I have is tapered. I always thought the holders were made to deal with a tapered blade. Some quick measurements and a pice of paper folded twice (.020”) and I’m making nuts and washers Ok I also slowed it down to my slowest speed without using the back gear. I’ve been cutting stuff off with a hack saw for the last 5 years. I still need to work on the free play on the slides but hey what a leap forwards. Thank Ms Hacks :)

@Blondihacks 3 жыл бұрын

That’s great! Glad I could help 😄

@jimtrantham1195 Жыл бұрын

This is a great lesson. I’ve blown up a parting tool before. Not only is it very noisy, but scares the daylights out of you. After this lesson, no more scary parting. Thank you Blondie!!!

@keystonekreative2174 Жыл бұрын

Your video are AWESOME!!! Thank you for all the details!!

@bouffant-girl 8 ай бұрын

I am thoroughly enjoying your videos on Machining. You are very experienced, and a great teacher!

@robertlark7156 5 жыл бұрын

Excellent video as always. Keep up the great work.

@Blondihacks 5 жыл бұрын

🤗

@quademasters249 2 жыл бұрын

I just want to say that this lesson in parting was life changing. I can part things now I dreaded before. It's all about turning the RPMS down.

@mq172 2 жыл бұрын

I simply adore watching interesting, engaging and passionate teaching on EVERY subject.

@scottb8175 3 жыл бұрын

One thing....I always set the blade height at or just a few thou under center....never above. I've found the initiating of any death chatter results in a shattered blade far more likely with the blade above center, even just a little. Below means the blade bounce doesn't wedge the blade deeper into the stock on the swing out of the diameter. This provides more warning to back out of the cut before the blade breaks.

@richarwi 4 жыл бұрын

Thanks very much. Your attention to detail is fantastic. Your delivery is excellent. I think this is the best video I have watched on this subject, and yes, I have watched many.

@MichaelMorlan1 5 жыл бұрын

Thanks for this entire tutorial series. I'm considering moving beyond my woodworking tools to a dedicated lathe and mill. The level of detail, logical structure and personable style to your videos is a model for everyone to emulate.

@Blondihacks 5 жыл бұрын

Very welcome! You should definitely give machining a go. You'll love it!

@crashtestperformance3596 7 ай бұрын

I learned so much from this video. You are so articulate. just wow.

@mathieulaforest1674 5 ай бұрын

Thank you for all your great teaching videos! Your the best!

@robsparkes4982 3 жыл бұрын

Just saw this video....Really great information as I just had some problems on parting off custom size flat washers.Your help saved the day for me.

@normesmonde5332 5 жыл бұрын

Thanks Quinn, great video on parting. I have used it for training my apprentices. Fantastic educational piece.

@Blondihacks 5 жыл бұрын

Wow, that's great- thanks! Glad I could help! 😄🎓

@girliedog 5 жыл бұрын

Thank you for another excellent video, that shim hint was worth the price of admission for me. :)

@Blondihacks 5 жыл бұрын

Virginia Hoffman I was very happy when I learned that one also. 😁

@larryshaw796 5 жыл бұрын

Parting really can be such sweet sorrow,seems like the more you do the more careful you get I guess you remember all the ways it can crah on you. As always good content thanks .

@Blondihacks 5 жыл бұрын

That's the truth! Every tip in this video is something I did wrong at some point in the past. 😀

@rjtwice2 5 жыл бұрын

Thank You! Very informative!! Small details make a huge difference. I will put them in practice when I attempt parting..

@Blondihacks 5 жыл бұрын

Glad I could help! Thanks for watching!

@rtachile32 2 жыл бұрын

Gracias Quinn tus enseñanzas son oro para mi

@N.Cognito 2 жыл бұрын

This clears lots of things up. Thank you.

@ogarridoa 3 жыл бұрын

Believe it or not but you made my day today. This video series are invaluable. Keep doing so well.

@hansenjantoft2587 Жыл бұрын

i just got an old lathe artec C1 . with tour help i got it up and running werry well. thanks from denmark Blondie .🤓

@JDnBeastlet 3 жыл бұрын

I know very little about machining and the more I watch of this series the more impressed I am. This is just the sort of thing someone like myself needs to get off on the right foot. Occasionally you do refer to something you haven't fully explained before (e.g., the compund - what it that?) but I can figure that stuff out from other sources. Thanks for the excellent videos!

@RagsdaleCreek 5 жыл бұрын

Awesome presentation and i agree with you whole heartily. Keep up the great videos. 👏 Watching in Alabama

@sherriecaskie3111 5 жыл бұрын

Gosh this video made me nervous! Love the series!

@jonathanpalmer5505 Жыл бұрын

With your excellent instruction, I've just managed to part a 1 inch piece of steel on a 7x14 Sieg mini-lathe. I'm on day 4 of ownership of my first lathe and I'd be really stuck with out your excellent videos. I'm so grateful you take the time to create such clear and informative content.

@CarlosMendoza-ou8kf 5 жыл бұрын

Good information all the time, thanks 😃👍🏼

@joshlipton1524 2 жыл бұрын

After watching every other video on parting I learned a lot but still was having trouble parting without chatter drama. Watched your video and went out to the shop and calmly parted a piece of 1½ inch mystery steel with out a hitch. Thanks for the video and your careful unambiguous guidance. Parting does not have to be sorrowful after all!

@robertoswalt319 5 жыл бұрын

Great video Quinn. You are the first person to mention that a shim can help with the flat and t parting blades. One thing I have done in setting the parting blade height is to adjust it to the part that was faced off as it shows the dead center of the spindle. The reason I have done that is that my progressive bifocals don't cooperate when I try to get my head in the right position to align the tool with the live center in the tail stock. Thanks again for the great tutorials. I have been making chips for a short while and am always picking up some great tips.

@Blondihacks 5 жыл бұрын

That's a great tip! The facing cut doesn't lie as to where the spindle's center line is, so that's bound to give good results!

@crashtestperformance3596 7 ай бұрын

Thanks for the help I need. your videos are fantastic. I have a lathe thats older than Moses with babbit bearings but I love it. My stand up bracket on my portable band saw helps every time. lol.

@highdesert6 Жыл бұрын

Excellent detailed instruction

@badmojamma 8 ай бұрын

I now announce the arrival of any anticipated event with... "Yahtzee!" No one knows why, but I do. Thank you, Quinn!

@eyuptony 5 жыл бұрын

Nice descriptions of various parting tools. Snapped off quite a few in my early days.

@Blondihacks 5 жыл бұрын

Thank you! The snapping of parting blades is never a dull moment.

@Vik.uk. 2 жыл бұрын

Absolutely brilliant!! Thank you!!! 🙏🏽😊

@lensman5762 5 жыл бұрын

Great video and explanation. Parting is the scariest operation for a manual lathe particularly for a beginner. It is a black art. Thnaks for sharing.

@Blondihacks 5 жыл бұрын

Thank you for the kind words! I agree it's the trickiest thing to learn, early on.

@50ShadesOfBeige 5 жыл бұрын

I’m very glad that the first thing you mentioned was USE A FACE SHIELD. You never know in that operation if you’re going to get a permanent part, or unexpected nose job, or worse.

@Blondihacks 5 жыл бұрын

The first time I shattered one of those blades, I was immediately sold on the value of a face shield for this operation. 😀

@Larry1942Will 4 жыл бұрын

Thanks for the video. I've "only" shattered one parting blade, so far, in the 3 years I've owned a lathe. It taught me to be a lot more careful in my setup. Coke cans are my usual shim stock, .004"+-, I'm cheap!

@paulthomson2375 4 жыл бұрын

Hi Blondihacks, you are obviously a very knowledgeable machinist.As an ex auto lathe setter we always ground a slight angle to the face, it is a single point tool after all not a form tool. Try it you might be surprised.

@briankenney4287 2 жыл бұрын

Excellent video - I learned a lot. Thanks

@danielmiller2886 3 жыл бұрын

I finally find an amazing machining tutorial series. Now... if I could just afford a lathe and mill!

@clydeadair3809 3 жыл бұрын

I've waited literally years and all of the sudden (over a couple years time) I got a very old sears 7 X 12 and it's missing some parts but usable for some turnings and ordered a NEW mini in the same size from Grizzley tools.

@kevinsay2492 Жыл бұрын

You are amazing! step by step, is amazing. Thank you so much for making this video. Subscribed 👍💯❤️

@thomasprondzinski2270 3 жыл бұрын

After watching this one a few times and having the parting blade fly out of the holder. Made some adjustments to the holder as the blade didn't stay put. Think I got it now, parted off a couple thin discs with no issues. Thanks Quinn keep those videos coming

@fishermanyt8187 5 жыл бұрын

Thanks Quinn I may actually try parting agin, having had the parting blade explode a couple of times was more than exciting. I think I now know where I went wrong, everywhere. Great explanation

@Blondihacks 5 жыл бұрын

That's great! Go for it! I have shattered enough blades to learn this stuff the hard way, so I hope I can help someone else out.

@injoelsgarage3934 2 жыл бұрын

Thank you! Nicely done for the nube.

@user-nc5zq9zl3e Жыл бұрын

Thanks for the lesson after i had the experience, new gears and parting blade on order. No injuries.

@andyb.5268 3 жыл бұрын

Yes watched, listened, learned - 3 top tips speed, lube and set-up. Just parted 40mm (1.5 inch) dia blue steel on my 8 x 16 mini lathe - previously I broke a high speed 12mm parting tool on brass!

@LordSteven00 4 жыл бұрын

This was helpful, cheers!

@RickRabjohn 5 жыл бұрын

Holy crap Quenn, your awesome girl! Just found your channel and impressed with your videos and the ton of information you seamlessly pack into them. You really know your stuff and offer a fresh new alternative to channels like mrpete222 and This Old Tony. Soooo, congrats to you and look forward to more of your fine work. Booyah!

@Blondihacks 5 жыл бұрын

Aww thanks! I’m honored to be included in the company from whom I have learned so much.

@williemakeit5660 6 ай бұрын

Don't underestimate your ability as a machinist, you are expert in my opinion.👍

@101mayn1337 5 жыл бұрын

This is great! I just burned out a belt on my little lathe this morning doing a parting operation. When a replacement belt arrives i will try again following these directions, thank you 😄

@Blondihacks 5 жыл бұрын

Great! I hope this helps! There's a lot of nuance to this topic, for sure.

@ratman5727 4 жыл бұрын

The best parting tool for the job is always the one that isn't broken!!

@HorizonimagingCoUkPhotography 2 жыл бұрын

Fascinating, educational, and enjoyable to watch (I love your sense of humour!)! I don’t even have a lathe, but still love absorbing information about machining in general. A brilliant video, thank you Quinn! On the point about using a powered cross-slide, I guess the other disadvantage of that is you presumably want to start going more slowly the closer you get to the centre of the stock as the surface speed will slowly be reducing - that, or slowly increase the rotational speed. But either way, it seems hand feeding is the best approach, for a hobby shop machinist at least.

@smallcnclathes 3 жыл бұрын

That was very thorough, well done! When I first got my small cnc lathe some fifteen years ago, I used to avoid parting by buying blanks cut to length. Then a tool company rep told me I should be parting off in the lathe to save the cost of having my material cut up. This crazy man was talking about parting at 2000 rpm! I had not experienced insert parting tools before and what a difference. I routinely part at 3000 rpm in brass and aluminium. Carbide parting inserts do not jam up on the sides as they are wider at the cutting edge than any where else. The shape of the cutting edge is designed to create a chip that is narrower than the groove so they do not tend to jam in the groove. The insert I commonly use has rake of 30 degrees which is great for small lathes as it reduces the power required for the cut. Even in my centre lathe which is much larger and slower, the same tools still work brilliantly. There is no way, I would even consider using HSS these days. Can be more expensive than HSS, but well worth it for myself anyway.

@izzynutz2000 5 жыл бұрын

Bim, Bam, Bob's your uncle.. HA HA HAHA....Beauty,,and brains...! Great tutorial and helpful hints keep up the good work Quinn.. I am enjoying this channel thoroughly... Izzy

@SuperTrackhoe1 2 жыл бұрын

Awesome video. 👍

@RVJimD 3 жыл бұрын

Recently found your channel as I was looking for videos on model steam engines. On my similar lathe I was noticing flex in the compound which caused trouble while parting. My solution is placing a machinist jack on the cross slide and under the tool holder. This helps reduce the flex. I’m tempted to remove the compound for this reason. Thanks for all the effort you put into the videos! Jim

@smellsofbikes 4 жыл бұрын

You have a lot of great tips I wish I'd learned years earlier. You point out that the cutting edge has to be perpendicular to the parting blade to prevent side thrust making it curve and bind, and separately, that some tapered parting blades have a top rake. It's been my experience that the top rake provides a side thrust that makes them tend to bind, and kaboom, hence my preference for the t-shaped parting blades you use.

@dcsensui 2 жыл бұрын

I just started working with a lathe and this video is so very informative. Thanks for sharing the knowledge. In my brief experience, the biggest contributor for problems is tools that aren't sharp enough. For woodwork I depend upon razor-sharp chisels and the lathe tools are no different. There's a jig for sharpening chisels on diamond stones. I think I'll make a rolling jig to sharpen my parting tools, and maybe some of the other tools, on those same diamond stones.

@chuckthebull 5 жыл бұрын

Thanks for this, very well presented, all these little tips are way helpful, things I have not even thought much about, just hearing them sticks them into my mental tool box. I'm a little less horrified by parting, especially in my large Goodway lathe I'm rebuilding. Maybe next time I won't resort to the hacksaw in frustration.

@Blondihacks 5 жыл бұрын

That's great! I'd love to restore a large machine someday. Glad I could help!

@618kustomz 3 жыл бұрын

Thank you for this great info and content.

@anaamehas 5 жыл бұрын

Great skill.👏

@mikebuckland2415 4 жыл бұрын

For small hobby type lathes a back tool post really helps due the improved geometry where the cutting forces are directed down towards the lathe bed rather than lifting the tool away from the bed when parting from a front tool post.

@kevinpulver4027 2 жыл бұрын

Thank you thank you Gwen! I've done parting more than a few times... but I watched this because I don't know what I'm doing! Now I feel like I do. Thank you so much! One of these days I'm going to watch your threading video again and try that for the first time.

@kevinpulver4027 2 жыл бұрын

I apologize- I didn't get your name right Quinn! And I can't blame it on my phone mishearing me this time; it was me mishearing you.

@Blondihacks 2 жыл бұрын

I also mumble. 😬

@64t120r 6 ай бұрын

This is your best technique video. One thing, I have one of the cheap 7x14 lathes, but it parts pretty well AFTER I got my setup dialed in. It's a cheap lathe so it took a little work, but it was worth the effort.

@mike9500 3 ай бұрын

great info! thank you Q!

@paulmorrey733 2 жыл бұрын

Thanks Quinn

@stephenrose8188 2 жыл бұрын

Hi Quinn, I do quite a lot of parting on my Harrison M300 and it's in good condition. Everything single thing you have said here is so valuable for beginners. However, a couple of additional things that I do:- 1. I use a height gauge to set my tool heights when it really matters, like parting off. (I actually keep a budget model permanently set rather than keep unboxing my Moore & Wright beauty). Worth noting is that the top face of the cross slide needs to be a consistent good surface, clean and undamaged, alternatively is the method of bringing the tool tip in contact with a straight piece of shim against the side of the chuck, even a couple of thou off of centre will see the shim be 'not vertical'. 2. The second thing I do, particularly with larger diameter stock is to use a travelling steady. It prevents (or should if set right) deflection and saves wear on the spindle bearings. 3. If I have a deep cut to make (large diameter) then I start the blade not extended to it's fullest depth required and extend as needed. (mine are Dixon toolholders so blades are 'flat' not generally angled upwards. I agree about hand feeding, it gives most feedback even though my machine has very slow feeds available I always have my foot on the emergency brake bar as that is a real instant and total stop of the spindle, the other hand is on the feed engage lever ready to drop it out.

@WorksbySolo 5 жыл бұрын

The shim behind the T-blade! I hadn’t thought of that! I’m so sure that neglecting this has been the reason for some of my... um... ah... well, let’s just say that my blade stock is a bit shorter that it used to be. :-) Thanks for sharing this info!

@Blondihacks 5 жыл бұрын

That tip was a big learning for me too. I forget where I picked up that trick, but I had to pass it along. It really helps.

@IW4DBX 4 жыл бұрын

to do parting on my 7x14 chinese mini lathe, I had to improve a lot rigidity on all slides and a lot of trial and errors. Now I can part stainless steel or white steel with a 2mm wide hss flat rod, grinded as needed. many thanks for the nice explanation