Mini Lathe Compound Slide Rebuild to High Precision Standards Part 2/2

Part 1/2: • How Everything Begun: ...
This is part 2 of the two part compound slide rebuild series. I made a new acme thread spindle and accordingly a new leadscrew nut with adjustment feature for minimizing the backlash. Along with some smaller parts I finish the compound slide in this video. From part 1 I didn't expect the project to be so elaborate in the end. But there where some unexpected problems occuring with the bearings. Luckily everything went just fine in the end and the result I got is really satisfying. The compound slide moves so extremely smooth now and the new made adjustable backlash nut works so well that I measured almost zero backlash on the whole assembly.
I hope you enjoy this video.
Let me know what you think in the comments.
If you are interested in more machining, Mini Lathe and toolmaking content, please subscribe to the channel. I really do appreciate your support!
Patreon support: www.patreon.com/wecandothatbetter

[@WeCanDoThatBetter]

Part 1/2: kzbin.info/www/bejne/q3SYeYCOpsaFetE

[@dandischinosvarietyhour1655]

I had no idea half the things you just did were possible on a lathe. I'm impressed

[@stevevender1154]

Seems like the first 100 projects on a mini-lathe are fixing problems with the mini-lathe. 😂

[@jericholechat7245]

seems proxxon works better too 😉

[@robertfontaine3650]

It is nice to see such a high level of work done on the minila the.

[@WeCanDoThatBetter]

Thank you very much! :)

[@joewhitney4097]

Great video, great build. The idea to install socket head cap screws that you turned the head down to allow placement in the end of shaft so you could access with an allen wrench was great idea. Looking forward to your next video. Thanks for sharing.

[@WeCanDoThatBetter]

Thank you very much for your comment! Happy to hear, you like my work. Until I make a rotary broaching tool for internal hexes, I have to go with the screw method ;)

[@kevinmullner4280]

@@WeCanDoThatBetter In case that you´ll sell these perfect compound slides - i´ll buy one.

[@Podpiska_i_laik]

Дружище, при регулировке задней бабки обрабатывая до кулачков, используй безотказную формулу. Диаметр больший минус диаметр меньший разделить на две длины. Получишь величину смещения задней бабки. Сместив её с помощью индикатора не меняя положения и желательно не трогая фиксатор пиноли,получишь снайперский выстрел. Если обработка ведётся не на всю длину то формула немного меняется. Точно не помню но по моему вместо длины нужно подставить разницу длин. Но первой формулой пользовался неоднократно. Работает как часы.

[@kaitee3766]

What a wonderful story before going to bed. And now I'm dreaming of giving my new little lathe such the same devoted attention. Oh, how I feel, turning this butter-soft crank. Very nice work. Every second is a joy. Keep it up.

[@Dirk-Ulowetz]

Das mit den Lagern ist ein Grund für mich, immer Lager von SKF zu kaufen. Die sind zwar teuer, aber wirklich gute Qualität. Industriestandard. Da liegst du immer innerhalb einiger Tausendstel Millimeter. Beim Gewindeschneiden, auch bei Trapezgewinden immer Schneidöl nutzen. Der Unterschied zu normalem Öl ist wirklich spürbar. Rändeln immer mit langsamer Drehzahl (zwischen 150 und 300/min) und auch hier immer Schneidöl nutzen. Du könntest versuchen mittels Stift und Nut deine verstellbare Mutter über eine Feder quasi wartungsfrei zu machen. Die Feder drückt beide Muttern auseinander, sodass du immer spielfrei bist. Kenne ich von einigen Herstellern von Drehmaschinen. Kannst du ebenfalls am Planschlitten machen. Nur ein paar kleine Tipps von nem Mechaniker mit knapp über 35 Jahren Berufserfahrung. 😊 Ach ja... Dein Kanal gefällt mir, habe ein Abo dagelassen. 👍

[@jrkorman]

Very well done. I especially like your backlash adjustment.

[@WeCanDoThatBetter]

Thank you very much for your kind comment! I'm happy I did realise an adjustable nut instead of a simple non adjustable one.

[@TheUncleRuckus]

I love these longer videos, the longer the better! Great video as always. 👍👍 I am dumbfounded that the tolerances on the internal races of those angular contact bearings could vary that much. The manufacturer sure as hell dropped the ball on those bearings.

[@WeCanDoThatBetter]

Thank you very much for your feedback! And yes, I'm pretty sure, that this is not standard for bearing tolerances....

[@GaisaSanktejo]

For future reference: your machining and cutting that acme thread on the brass parts caused the metal to work harden, to resolve the "crunchiness" you need to heat treat the brass to remove the hardening... Also, I would suggest cutting the thread before machining the rest of since a fair chunk of that first part looked VERY thin and I was afraid it would snap off while trying to cut that thread. It could also allow you to hold it on some of the acme rod to keep the thread centered on the parts 😉 I like your making a bottoming tap as they're called, but that blueing had me concerned the temper on that tool was damaged, which isn't a concern for soft materials like brass etc, but could be a problem if you wish to use it for steel... if necessary, that could be easily resolved with a little heat treating Other than that observation, FANTASTIC JOB!

[@aaronshapiro2542]

That bearing fit was absolutely shocking. angular contact bearings are pricey, I would expect better tolerances.

[@WeCanDoThatBetter]

Yes, that is really weird. The bearings I bought where relatively cheap but nontheless the tolerances are disastrous.

[@dhstube]

In my bicycle shop I order always Enduro Bearing and I never have issues with tolerances in any way, also with angular contact bearings from Enduro

[@lukerickert5203]

only P4 or better AC bearings (for spindles) are expensive. Even European made bearings just aren't so bad in standard grades.

[@Airtight215]

You get what you pay for. When you buy trash they don’t send diamonds.

[@ieaiea5081]

There just cheap low tolerance bearings from China that he bought

[@mattholden5]

Absolutely beautiful result. You inspire the rest of us to improve fit and function of our small machine tools. Thanks for sharing.

[@WeCanDoThatBetter]

Thanks for your kind comment! I really do appreciate that!

[@colinmcmillan2642]

Beautiful work as always. I really enjoyed the longer format, and love your humility and sense of humour. Thank you.

[@WeCanDoThatBetter]

Thank you very much for your comment! That's really kind. Happy to hear you like my work and style! :)

[@orangetruckman]

I’ll watch whatever length of video you put out. Outstanding work.

[@WeCanDoThatBetter]

Thanks! I really do appreciate your support!

[@orangetruckman]

@@WeCanDoThatBetter the pure effort and energy out into your work is difficult not to support 💁🏼‍♂️ 😬

[@WeCanDoThatBetter]

@@orangetruckman Thank you so much! :))

[@HolosunGodOfOdin]

Grind a chip breaker on your drill bit to avoid that unexpected grab. Brass is notorious for that.

[@johncoops6897]

Absolutely superb video series. 👍👍 Your quality of work with such simple machinery is just incredible. Greetings from hot and sunny Sydney AU. 🍺

[@WeCanDoThatBetter]

Thank you very much for your kind comment! I really do appreciate that! You need a lot of patience but it is doable ;) Greetings from winter GE

[@TheConscientiousView]

Very enjoyable to watch. Thank you 👍

[@WeCanDoThatBetter]

Thank you very much!

[@VanFlausch]

Fantastic and long Videos are perfect for Friday Afternoons

[@WeCanDoThatBetter]

Thank you very much! Happy to hear you like it :)

[@seansysig]

I wish my slide was that tight!

[@socaldevin]

Excellent content!!! Please keep it up

[@WeCanDoThatBetter]

Thank you very much!

[@joell439]

👍👍😎👍👍 - absolutely fabulous results. Thanks for showing us all the details!

[@WeCanDoThatBetter]

Thank you very much for you kind comment! I really do appreciate that!

[@Cjarka_]

Beatufully done and well designed

[@WeCanDoThatBetter]

Thanks for your comment! I rather think they are just cheap ;) (which they were..). And yes, I think for brass a rather negative cutting angle would be better but it worked anyway.

[@cnc-beginner]

I am very happy having watched this video. Now I know i am not the only one who forget the locking pin in the proxxon machine. Sonce great work as usual.

[@WeCanDoThatBetter]

Haha :D Yes, that's annoying ;) Thank you my friend!

[@jameshisself9324]

Wow. That backlash is impressive. Well done sir.

[@greppurtorfason4216]

Excellent video,, and a great modification ! The usual original mini-lathe compound slides are a pain-in-the-butt. Your modification improves your compound dramatically. Great job. Thanks for the superb video and all the work you put into it.

[@WeCanDoThatBetter]

Thank you very much for your kind feedback! I really do appreciate that after all the work :)

[@jimmyfleebot]

For when you remove the handle, a thumb screw with internal hex driver that aesthetically fits the other knurled surfaces would really finish it off. You could still retain an internal hex on the outside of the thumbscrew, incase you need extra torque during machining but I doubt you'd end up needing it that often

[@digitaltree515]

Your work is incredible, and I also enjoyed the longer, narrated format here. It would be really great if you had plans to share for your mini lathe upgrades, too! Especially the compound and cross slide improvements you've made.

[@WeCanDoThatBetter]

Thank you very much for your comment and kind feedback! I really do appreciate that. The thing with the plans is, that I have no CAD program at the time which allows me to offer the plans to the public. I'm on the look for a fix here.

[@siggibohlenbrecher1403]

Es hat mir auch schon Überwindung gekostet für ein kurzes Sackloch einen Gewindebohrer abzuschneiden. Aber manchmal geht es nicht anders um zum Ziel zu kommen. Ich bin sehr erfreut über ihre gute Ausführung der Arbeiten. Bei mir steht das auch noch an und man kann sich Ideen abschauen. Danke

[@WeCanDoThatBetter]

Danke für deinen netten Kommentar! Ja, ein bisschen tut es weh, wenn man den schönen Gewindebohrer "zerstört" für nur ein Loch, aber soo teuer sind sie ja zum Glück nicht, insofern wars mir das wert :) Der Anschnitt ist sonst doch recht lange.

[@generaldisarray]

I just love the ingenuity. Fantastic job! 👏👏👏

[@WeCanDoThatBetter]

Thank you very much! I really do appreciate that!

[@generaldisarray]

@@WeCanDoThatBetter no, thank you for inviting us into your workshop and sharing your knowledge.

[@Koptokaf]

So slick! -Wonderful job. The hex drive on the back makes me think that one could motorize the slide for some odd jobs.

[@WeCanDoThatBetter]

Thank you! Yes, that would be cool for turning longer tapers.

[@mike9500]

love that pin! ;) it does look awesome sir!!! great work!

[@StripeyType]

This is quite excellent! Congratulations on a magnificent rebuild. Your hex key modification also affords you the opportunity to achieve some very nice surface finish on tapered parts.

[@shawnstuart1029]

It's glued in, might not fair well on retraction with time, you can make a tool to cradle the handle anyway.. What a great build to watch.

[@SethKotta]

That end result. So precision. Such smooth.

[@WeCanDoThatBetter]

Thanks! Yes, it feels great now.

[@rabie4x4]

What excellent actually looks like.

[@mike9500]

haha that caliper cracks me up!!! POP goes the coller! hehe. that always makes be jump when it happens. looks awesome sir! love the work!

[@WeCanDoThatBetter]

:D Thanks!

[@peirossmallhomemachineshop5364]

it's better than net, it's an outstanding achievement. Congrats. Thanks for sharing your expertise, it gave me a few ideas for improving the cross slide of my old DIXI lathe from the 1940's which is somehow worn out.

[@WeCanDoThatBetter]

Thank you very much for your comment! Good luck for your project :)

[@w.b.maguireii6617]

Beautiful work! And very nice photography, too.

[@WeCanDoThatBetter]

Thank you very much for your kind feedback! I really do appreciate that!

[@vandalsgarage]

Proper job. I'm motivated to make some improvements to my full sized lathe.

[@WeCanDoThatBetter]

Thanks!

[@charlvanniekerk8009]

An incredible build! Its so good to see how the quality and precision of your work has increased over the years and the amazing result speaks for itself. Thank you for sharing and happy machining.

[@Bigredkarl]

Its always a treat when you upload

[@WeCanDoThatBetter]

Thanks! Happy to hear, you like my work!

[@clintchapman4319]

Very nice work! I may do this with my lathe!

[@yosacfc]

The best solution I have seen so far to improve thre cross slides

[@wallwn]

Робота виконана на дуже високому професійному рівні, приємно було просто спостерігати за її виконанням. Подяка майстру.

[@foogee9971]

Absolutely great work! Thank you again for sharing....👍

[@incubatork]

Excellence in miniature 👍

[@WeCanDoThatBetter]

Thanks!

[@EZ_shop]

Incredible workmanship..

[@angelramos-2005]

Quality work.Well done.Thank you.

[@WeCanDoThatBetter]

Thanks!

[@joaoquadros8675]

Bro you did an amazing job! 🎉😮

[@WeCanDoThatBetter]

Thank you! I really do appreciate that!

[@spudnickuk]

very nice , a shame we cant buy upgraded quality like yours :)

[@WeCanDoThatBetter]

Thank you very much!

[@spudnickuk]

@@WeCanDoThatBetter your welcome and to say I will be watching more of your worthy upgrades

[@mb9604]

21:00 “that was unexpected”. Haha sounds like a good merch slogan (tshirt?)

[@WeCanDoThatBetter]

:D Good idea

[@HM-Projects]

Excellent work as usual. I think you meant leadscrew when you say spindle. I'm looking forward to the video where you ditch the compound slide and replace it with a solid tool post mount 😂

[@WeCanDoThatBetter]

Thanks my friend! And thanks for the hint on lead screw vs spindle :) I'm not yet in the solid toolpost party :) Perhaps some day I will try but for now I like my compound slide :)

[@nortonp240]

I love the build and the format of the video. Great job !

[@WeCanDoThatBetter]

Thanks a lot for your kind feedback! I really do appreciate that!

[@se9741]

Excellent result!

[@WeCanDoThatBetter]

Thanks!

[@Fetch049]

So well done. Impressive.

[@WeCanDoThatBetter]

Thanks!

[@lolcec81]

Комментарий в поддержку канала и ролика, а также труда мастера

[@malreynolds9591]

Nice work. I subscribed.

[@WeCanDoThatBetter]

Thank you very much! I really do appreciate your support! :)

[@Vindex0]

Beautiful i love the details you are well aware of

[@WeCanDoThatBetter]

Thank you very much for your feedback! I really do appreciate that.

[@mattylarkspur9858]

you can also use that hex key on the back of the slide spindle to drive it under power when makilng a taper! i see a lot of people make up a jig for their power drill to spin the handle, but this seems much more elegant.

[@revtmyers1]

Really well done.

[@WeCanDoThatBetter]

Thanks!

[@richardandrews6754]

I like the hex in the end of the spindle as you can now power feed the compound slide to get a nice finish on taper turning by using a ball end key in a cordless drill which will give you variable feed speeds. the back lash adjustmend is very good too.

[@subuktageenfarooqi5712]

can we have a milling machine improvement/modification video

[@matsbengtsson3756]

Excellent solution.

[@WeCanDoThatBetter]

Thanks!

[@pipereed1]

Nice work!

[@WeCanDoThatBetter]

Thanks!

[@kyriacosvasiliou8342]

Please stop slamming drill bits into your parts 🤣🤣. I love your content bro. Keep it up!

[@WeCanDoThatBetter]

Haha :D Thank you very much! :) Do you mean the drills get damaged?

[@kyriacosvasiliou8342]

@@WeCanDoThatBetter I dont know if they get damaged or not, but its just so brutal 🤣🤣

[@nardaoeletronica]

Always excellent video and job.

[@WeCanDoThatBetter]

Thank you very much!

[@subuser9627]

Nice work. 😊

[@WeCanDoThatBetter]

Thanks!

[@daveys]

Nice job!

[@WeCanDoThatBetter]

Thanks!

[@Self_Evident]

Just a mildly pedantic observation - @0:35, that is not a spindle, it is a lead, or feed, screw. A spindle's primary function is to... spin. Whereas, a lead screw's primary function is to... um... "lead" (ie, move) something... :) Pedantary aside, awesome upgrade!

[@WeCanDoThatBetter]

Oh thanks for your feedback! This is good to know. I hopefully remind this next time :)

[@SELG88]

guy is a genius, that thing is now a weiler or schaublin

[@WeCanDoThatBetter]

Thank you so much! And yes, I thought to myself I'm probably getting in the range of how a real fine lathe would feel. Only thing which is now left to do is to scrape the compound slide in. I like to do this next.

[@SELG88]

​@@WeCanDoThatBetter not only you do an awesome job machining but also sharing your thoughts process. We gotta.be grateful for that.

[@BillDavies-ej6ye]

For clarity, if using standard threads: acme for Imperial/US threads (29 degree included angle), trapezoidal for Metric threads (30 degree inc. angle.).

[@WeCanDoThatBetter]

Oh thanks for your feedback and the hint on the threads. I didn't know that. So for me (in the metric world) it should be always be called "trapazoidal" :) Thanks ;)

[@kiwishamoo6494]

Very tidy piece of work :-)

[@WeCanDoThatBetter]

Thank you! :)

[@dokmetasonur]

Masterpiece

[@WeCanDoThatBetter]

Thanks!

[@britenrhodehouse8692]

Great ideas!

[@WeCanDoThatBetter]

Thanks!

[@wambsganz8]

Dude your like a machinist savant

[@WeCanDoThatBetter]

Thank you very much! :)

[@user-dj5gf9jp8g]

Cool work thanks 👍

[@WeCanDoThatBetter]

Thank you!

[@temyraverdana6421]

Yes, as you said a great success!

[@WeCanDoThatBetter]

Indeed :)

[@LightW]

35:41 maybe cut off the ball the screw sits in on the turning handle and make a screw with a ball head, so you don’t need a tool to fix the handle but instead fix it by hand with a knurled screw / Rändelschraube. Awesome work by the way, you inspired me to get my first lathe! :)

[@WeCanDoThatBetter]

Thanks for your comment! :) Sounds like a good idea too. I have to see how it works in the future and if there is a need of changing it.

[@adriankohli4870]

Top Job,Sir👌

[@WeCanDoThatBetter]

Thanks! :)

[@seldendaniel8819]

Well done!

[@WeCanDoThatBetter]

Thanks!

[@mundaryus]

This is wunderbar!

[@WeCanDoThatBetter]

Dankeschön! :)

[@citysmarttvcitysmarttv-lw6ok]

Станок токарный на столе, к нему резцов коробки две , в голове идей навалом Запасаюся металлом!

[@Bob_Jones_]

Excellent !

[@WeCanDoThatBetter]

Thanks!

[@probins2299]

Love your videos you did a great job. KZbin put a ridiculous number of adverts in though 😮

[@WeCanDoThatBetter]

Thanks for the hint! I removed some of the ad breaks. That was an insane high number...

[@dockerjade]

Awesome videos! That looks like it moves so smoothly, so satisfying.

[@WeCanDoThatBetter]

Thanks! Yes, it does. It's really satisfying :)

[@MrSneakyGunz]

Nice.

[@duaneglover9283]

Exalent job

[@WeCanDoThatBetter]

Thanks!

[@Pushyhog]

yay! thanks again.!

[@marcelodemorais21]

Very good job! 🇧🇷🇧🇷🇧🇷 God bless you!

[@WeCanDoThatBetter]

Thanks you very much!

[@mftmachining]

Erstklassige Arbeit. Gut, das du bis zum Ende durchgezogen hast. War ein ganz schöner Aufwand. Beim schneiden von Gewinden in Messing hilft ein MoS2 Fett. Reduziert zumindest dieses üble ruckeln etwas. Ich nehm da Mannol 8107. Hast du wieder gut hinbekommen

[@WeCanDoThatBetter]

Danke dir für die netten Worte! Und nach dem Fett muss ich mal suche, danke für den Tipp :)

[@ParsMaker]

superb 🦾👏👏👏

[@WeCanDoThatBetter]

Thanks!! :)

[@joka9823]

Besser geht's nicht 👍🙂

[@mike9500]

🤣🤣🤣❤ love that caliper!!!! hahahaha

[@vovanhz7803]

хорошее видео 😊

[@wyattselleck7236]

Liked and Subscribed

[@WeCanDoThatBetter]

Thank you very much! I really do appreciate your support!

[@Goshjij]

Great video dude! Im thinking of buying a similar lathe but i saw alot of deflection when you were center drilling/drilling is that unfixable with that lathe? Or do you not need the tools to be perfectly center for this specific job?

[@VEC7ORlt]

Cool cool, surprised you didn't use any astroglide when cutting that acme thread. Also that poor poor tap changing color as you cut it. BTW what kind of bearings are those? As generally tolerances on those are VERY good.

[@darkwinter6028]

Long videos are GOOD! Also, where did you get those bearings? The tolerance on that… 🤨

[@WeCanDoThatBetter]

Good to know :) Thanks! The bearing were from an bearing onlineshop in Germany. I have to contact them if this is normal.

[@bmalovic]

Nice job, and some realy good solutions. One question... can the bottom of the dial ring pass the top surface of the cross slide? So when you put a compound at acute angle, you still get a full CS travel (of course, after removing the handle).

[@jesseservice7828]

Muito bom !