CNC turning a high speed grinder pulley with the Schaublin 125-CNC || RotarySMP

Рет қаралды 15,693

Күн бұрын

A friend got a Myford MG12 cylindrical grinder, and needs a high speed pulley for the internal grinding attachment, so lets turn one... or four.
____________________
If you enjoy my content and would like to support my channel... I'd really appreciate it.
Please join me on Patreon and help build this community.
/ rotarysmp
or sign up for youtube memberships using the "JOIN" button above.
or please just buy me a coffee...
tinyurl.com/5cv2yscb
____________________
00:00 - Intro
00:29 - What are we making?
01:32 - CAM tool path
01:54 - Special tools
02:30 - Tool grinding
03:21 - Boring out the taper
04:05 - Threading
04:59 - Turning the crown
06:29 - Crashing the parting tool!
08:04 - Second attempt
12:26 - Third attempt
14:47 - Small diameter pulley
16:12 - Installation
_______________
Music:
Louis Island - Cloud 9
Ikoliks - To the Party
RocknStock - Shook Up
Rex Banner - Easy Money
Ikoliks - Get That Feeling

Пікірлер: 107

@MyMiniHomeWorkshop Ай бұрын

You're right about watching CNC's cut threads, even after doing 100's of thousands of them, in brass mind you which you can do at pretty high speeds. A year or so before I retired, I bought 2 little Taiwanese CNC's that had a 4 station programable tail stock which allowed me to do an internal and external thread at the same time, now that was something to behold, it was a mind-blowing program to run it though. Nice external finish on your parts. 👍

@RotarySMP Ай бұрын

Internal and external in a single pass would be cool to watch. Thanks. I probably should have changed out the insert for the internal finishing pass.

@v3ctors69 Ай бұрын

It's so awesome to see the Schaublin just doing its thing, it's been quite a journey. Amazing work as always Marc!

@RotarySMP Ай бұрын

Thanks a lot. It is a great machine.

@kenthesparky178 Ай бұрын

You make my Sundays better.

@RotarySMP Ай бұрын

Hi Ken, thanks for the kind feedback. Have a nice day. Mark

@vandyFixer Ай бұрын

Thanks to Luke for helping out, yet again.....wait a minute...I see what you did there. Mark actually managed to return a favour.😁 CNC machinery never fails to impress me, especially seeing as this particular machine was {re}built in a basement. Another great video👍

@RotarySMP Ай бұрын

Thanks for watching it. It was nice to make a part which Luke would have probably found a way to make faster in his well equipped workshop :)

@wizrom3046 Ай бұрын

Ouch munching that chip clearing tool into the thread! 😬 Suggestion; raid the kitchen drawer for a silicone spatula, usually they have a little plastic handle and a silicone rubbery spatula, small spoon sized type (but flat). Probably about 25mm by 40mm silicone part but if you still need smaller than that you can just trim with a knife. Very safe chip clearing tool. 👍

@RotarySMP Ай бұрын

...but life threatening consequences if Mrs RSmp catches me !! :)

@GeoffTV2 Ай бұрын

Love that CNC thread cutting. Thanks for another great video. - Heather

@RotarySMP Ай бұрын

Thanks Heather.

@solarcheese Ай бұрын

Marc, I’m a long time viewer and every time I see one of your videos I immediately click. I love your commentary and your editing has such a relaxing vibe that I adore. Your channel is criminally underviewed and I hope you continue doing this. Hi Luke 😁 ps. Your comment game is A tier my friend!

@RotarySMP Ай бұрын

I appreciate your kind feedback. Thanks a lot.

@brianmunyon5669 Ай бұрын

Wow those are beautiful. That bird nesting reminded me of this time it wrapped around my hand releasing this strange red liquid.

@RotarySMP Ай бұрын

Ouch, that sounds awful. I hope it didn't do any tendon damage.

@brianmunyon5669 Ай бұрын

Fortunately it was superficial. Just an early (1991) lesson.

@capivaraofwar Ай бұрын

I stopped breaking parting tools when i started making side to site cuts it, it gives a heck of a lot more relief to the tool.

@RotarySMP Ай бұрын

Yeah, I need to think about automating that tool path creation.

@mumblbeebee6546 Ай бұрын

Sweet! Now you need a CNC Greasing Adapter 😎

@RotarySMP Ай бұрын

Yeah, good one :)

@hahnrossman1172 Ай бұрын

All my cnc lathe experience has been an exercise in faith. To avoid the bird nesting you need to increase feed or depth to make a chip that breaks. With CSS its worth doing some tests and then watch the magic happen

@RotarySMP Ай бұрын

Yeah, that is good advice. I tend to jump between jobs - I am on a welding trip at present - and have not really learnt any machine well.

@hahnrossman1172 Ай бұрын

gWizard has been an amazing resource. It will help a lot with the Maho as well

@joell439 Ай бұрын

What a fantastic project. I can only imagine the pucker factor your felt through all this. 👍👍😎👍👍

@RotarySMP Ай бұрын

Hi Joel, yeah, especially parting, as I still have little feel for the right feeds and speeds there.

@rallymax2 Ай бұрын

Thanks for the Picture in Picture of the macros running. It helped to visualize it.

@RotarySMP Ай бұрын

I quite like doing that. I had plenty of footage from the multiple set up and test runs to get it dialed in.

@624Dudley Ай бұрын

Shiny! 😎 Nice project 👍. It’s rewarding to see the Schaublin deliver.

@RotarySMP Ай бұрын

Thanks, I am glad how it is working.

@LCalleja Ай бұрын

Thanks a lot for helping me out with this. you sure made it look easy with a cnc lathe :)

@RotarySMP Ай бұрын

Hi Luke, the magic of non-linear editing :)

@LCalleja Ай бұрын

@@RotarySMP Well it sure was fun

@RotarySMP Ай бұрын

@@LCalleja I am looking forward to seeing what you do with the Myford.

@LCalleja Ай бұрын

@@RotarySMPhopefully not the broom handle :)

@stevensmart8868 Ай бұрын

Nice vid guys. Now you have ironed out the steps, time to crank out another couple of hundy parts! But you only need 1 of each size. Having the cnc for the crowning is definitely a great to have!!

@RotarySMP Ай бұрын

Yeah, that is the problem with CNC in the home shop :)

@vincei4252 Ай бұрын

G'day Mark, G'day Luke! Thanks for the great start to Sunday.

@RotarySMP Ай бұрын

Thanks Vince, you as well.

@JohnForst82machine Ай бұрын

Morning Mark and hello Luke, great to see you guys helping each other out again and to see some Schaublin action! Have a good week and thanks for the video.

@RotarySMP Ай бұрын

Thanks for dropping by John. Glad you enjoyed it.

@theinfernalcraftsman Ай бұрын

I'm very familiar with those crunching sounds. I have done my fair share of goof ups lately as well. Definitely jealous of the surface finish on those parts.

@RotarySMP Ай бұрын

The Schaublin really is a tight machine mechanically.

@theisstrm-hansen7051 Ай бұрын

Nice to see the Schaublin doing its thing!

@RotarySMP Ай бұрын

I need to use it more, but am currently on a welding trip.

@Rustinox Ай бұрын

Nice, a collaboration project. Always fun to do.

@RotarySMP Ай бұрын

Hi Michel. Yeah, do this with Luke.

@WillemvanLonden Ай бұрын

To steal one of the comments on This Old Tony's channel: Drop everything, it's RotarySMP!

@RotarySMP Ай бұрын

Thanks a lot Willem :)

@TheDistur Ай бұрын

I need a friend in the states with a CNC lathe. I'm a chump doing everything by hand. 😂

@RotarySMP Ай бұрын

They really are a handy tool.

@steveggca Ай бұрын

Hi Luke ! that steel has a very nice finish once the feed rate and depth of cut was worked out.

@RotarySMP Ай бұрын

It really does. It was EN24, which I think is 4340.

@Johannes58934 Ай бұрын

Yep, looks like you're still human! Spent the night once in Wien... Had an connecting flight overlay and spent the evening in the 'downtown' area (Stephansplatz). We considered taking the Ubahn back to the airport, but they all felt afraid when they saw that long, deep escalator! 😅 Americans

@RotarySMP Ай бұрын

That is pretty funny. Also the U-bahn doesn't go to the airport. You need to change to the S7 commuter train at Wien Mitte :)

@Johannes58934 Ай бұрын

@@RotarySMP This was 20 years ago. One of the others was told we could take the train back to the hotel so I knew an 'umsteigen' would have to happen. I doubt any of them had ever been on a train.

@RotarySMP Ай бұрын

@@Johannes58934 If you get back over here, let me know am I can help you out.

@Johannes58934 Ай бұрын

@@RotarySMP I live in Germany... I've rode 100's of trains 😄

@RotarySMP Ай бұрын

@@Johannes58934 :)

@jmtx. Ай бұрын

Wow, so mesmerizing to watch, especially the threading!

@RotarySMP Ай бұрын

Glad you enjoyed it.

@MikelNaUsaCom Ай бұрын

Have to work at the day job this weekend. Thx for posting these videos!

@RotarySMP Ай бұрын

Glad you enjoyed it Mike.

@Paddington60 Ай бұрын

Thread cutting is concerning anyway, CNC thread cutting is terrifying!!! Very nice finish on the crown, is it called.

@RotarySMP Ай бұрын

I sped it up a lot, but the first time you run the tool path, there is a pucker factor :)

@rbyt2010 Ай бұрын

Good to see the schaublin in action:) Nice video! Is that FreeCad?

@RotarySMP Ай бұрын

That is an ancient (21 year old) version of FeatureCAM. It works well on the lathe, and made a post processor for it.

@rbyt2010 Ай бұрын

@@RotarySMP ahh. Always watching for different CAM for the rotary axis on my LCNC gantry router. F360 is crippled unless you buy the mfg add-ons…

@SuperAnodyne Ай бұрын

Always good to see you doing work an the Schaublin. Really curious about the HMI tha allows you to do changes almost on the fly i assume it makes live a lot easier. Great video nice pully thank you for sharing.

@RotarySMP Ай бұрын

Human machine interface? The Schaublin uses the Gmoccapy interface for LinuxCNC. Is that what you meant? Remember this is a three evening compressed into 16 minutes. A lot of it is editing :)

@SuperAnodyne Ай бұрын

yess ……. i assume you design the part in fusion, post the toolpath to Linux CNC and then have an hmi (andy piu) that alows you to do minor changes on the fly instead of rewriting the whole toolpath? ……… as yiu said time time flies by …….really apreciate you sharing and documanting it in an entertaining way ……i assume editing is at least as hard as machining if you want it to be entertaining 🥳

@RotarySMP Ай бұрын

@@SuperAnodyne No Fusion, as the maker license does not support commercial usage, and they consider YT'ers as commercial. I use FreeCad, or 21 year old seat of FeatureCAM. Andy Pugh's Lathe macro's don't let you edit tool paths, that is done in the text editor build into LCNC. His macro's are just are really fast way to get simple cycles. Do you mean tool path editing or video editing? Tool path editing, you have to be really, really careful. It is so easy to miss a decimal point and have the machine race off. Video editing for YT has taken me a long time to learn, and I am still learning every time I do it, as you are really producer, director, cameraman, sound guy, grip, actor, voice over, editor etc all wrapped into one.

@SuperAnodyne Ай бұрын

ah wasnt really aware of the whole process, i‘m when it comes down to sofware a DAU …dümmster anzunehmender user……..as aone man show you proof to be a multifunctional multitasker………. it took me took me over a year to figure out light in pictures by using my daughters stuffed animals and arrange them in different positions……

@RotarySMP Ай бұрын

@@SuperAnodyne That worked well for you. You photos show you mastered lighting. I am pretty lazy on that, and just provide lots of flat light for me videos. Did you ever see Ben Farrells analysis of ThisOldTony's video? Dramatic lighting was one of the points. kzfaq.info/get/bejne/aNBph5CWvtWcgYU.html

@davers1610 Ай бұрын

Great video as always.What CAM are you using for the lathe?

@RotarySMP Ай бұрын

Thanks, That is a 21 year version of Feature cam.

@wouterdegroot3803 Ай бұрын

"Luke had already a grinding fetisj"💀

@RotarySMP Ай бұрын

Yep :)

@andytroo Ай бұрын

re: "can't get the end diameter right" - could you make it a little long (cone too wide), then trim down the correct fraction of a mm to get it spot on? re: cnc threads - i didn't realize the angular control part was good enough to reliably do that ...

@RotarySMP Ай бұрын

That would work, but only if you get the small end pretty close. The lathe spindle has a Heidenhain encoder slaved to it, and LinuxCNC syncs to that. It is extremely accurate, and you could turn the spindle with a hand crank, and it would making the pitch with completely unstable spindle RPM.

@constantintriantafyllos6183 Ай бұрын

Bonjour Marc, Hello from Belgium Isn't time to get the tool changer working ? 😊😊 I enjoy your videos .

@RotarySMP Ай бұрын

G'day Constantin. How are you doing? Yeah, you are right, but I am kind of on a welding trip at the moment :) Will get to it soon hopefully.

@RB-yq7qv Ай бұрын

Dame thread tool chipping but nice work

@RotarySMP Ай бұрын

Yeah, I should have checked that earlier.

@Andrew_Fernie Ай бұрын

HSS parting in steel is horrible. I wasn't a bit surprised when it snapped off. What about Starship ?! How did that tattered flap hang on and still work? It reminded me of pictures I've seen of an A10 that had been hit by a missile and still managed to land.

@RotarySMP Ай бұрын

I was most surprised that it didn#t snap off. It only needed a little honing. Yeah, I watched it live and was blown away when it made it all the way down to the final hover burn. Amazing adaptive control.

@johnrussell6620 Ай бұрын

What ever happened to Niko, your #1 fan?

@RotarySMP Ай бұрын

He has been busy with work and his cars lately.

@user-xwood Ай бұрын

Beautiful work. Is the soundtrack necessary, thanks

@RotarySMP Ай бұрын

Luke an I were talking a lot, and sped up, sounded bad, so the music was to cover that.

@jsincoherency Ай бұрын

To use a manual machine to get the taper concentric with the outside, and with the correct outside diameter, could you make the entire part over-length and with the correct outside diameter and then flip it around and then face it down until the taper diameter is correct? Your facing cut would not be perfectly concentric, but you don't care. Then face down the other end to get the part to the correct overall length. (EDIT: Oh, I watched further and I see that the pulley is crowned, yes that makes it more tricky).

@RotarySMP Ай бұрын

Luke and I had a chat about it. You'd start by setting the top slide angle and setting it to a defined zero point in it's travel. then set up a clock on both cross slide and bed, so that you have a repeatable location. Make a test part, blue it, and try it on the grinder spindle. Adjust and repeat as required.

@EdgePrecision Ай бұрын

Does the turret not work on that machine. Why not setup all the tools in the other stations?

@RotarySMP Ай бұрын

Hi Peter, Not yet. When I bought it, it had been sitting for a couple of decades with a dead controller. It had previously been run with cutting oil, which had hardened to varnish. The ballscrews would not even turn until I stripped it all down and cleaned the snot out. I just haven't got around to stripping and cleaning the tool changer, and will also have a fair bit of work to get it under LinxCNC control. Cheer, Mark