CNC Lathe - Brass Feet

Machined brass feet on our CNC lathe
We only had to machine 15 off, so the finesse of our program did not matter. We had to polish and age the brass table feet parts after.
When doing a 15 off nothing else matters, except getting the shape as quick as possible.
We hand finished the parts in our factory.
For bespoke metalwork, please visit: www.resurgem.co.uk
For various metal hardware, from hinges and handles to baths and sinks, please visit: www.metalhardware.co.uk
For Stainless Steel parts, ranging from chain to castors, please visit: www.juststainless.co.uk
For CNC Machining for all materials, please visit: www.machcnc.co.uk

[@talldarkdurk]

Should groove it last for sure, would help

[@kazegaming6870]

Good look

[@TheNephilim1337]

I agree with all previous comments. That chatter is enough to drive me insane after the second cut. Choke up on your workpiece as much as possible. Conventional cut your roughing passes. Your endmill will be much happier at a slower rpm.

[@tireballastserviceofflorid7771]

+TheNephilim1337 Climb cuts are for finish work. Was surprising to see them cutting the whole part that way.

[@drew79s]

Have you guys looked into path optimisation using a reduced stepover and a higher feed to fix some of the chatter issues? And have you looked at turning some soft jaws to improve your workholding without harming tool clearance? I'd suspect that with just those two things you'd be able to bump up your production rate markedly, as well as substantially improving tool life.

[@sleddarcheddar]

I'd also not cut that groove in at the beginning.

[@mhillnika334]

Drew animal a

[@squal911911]

He likes to climb mill too.

[@neilhuband1978]

Not a well written program. There's far too much bar sticking out from the chuck, and also the deep groove which was made right at the start of the video should have been done later on. You could hear the vibration of the bar when the end mill was cutting. Had there been less bar sticking out, and the groove cut later in the process, there would have been less vibration and a better surface finish would be on the finished part. Source: I'm a CNC Programmer.

[@Anappa11]

I couldn't agree more. I was literally thinking exactly what you said the entire video, laughed and nodded as I read your comment. I'm shocked they got any bit of a uniformed surface finish at all honestly. They also wasted a fair amount of material that they just cut off at the end as well as a lot of time wasted in general program inefficiencies.

[@Anappa11]

I couldn't agree more. I was literally thinking exactly what you said the entire video, laughed and nodded as I read your comment. I'm shocked they got any bit of a uniformed surface finish at all honestly. They also wasted a fair amount of material that they just cut off at the end as well as a lot of time wasted in general program inefficiencies.

[@joshua43214]

+Neil Huband Ya, pretty crappy program gets a pretty crappy part. He would be better off casting this part rather than wasting machine time. It doesn't help that the machine looks like it hunts around for position too.

[@madarays]

+Neil Huband + too much wasting of the material.

[@tireballastserviceofflorid7771]

+Neil Huband The first cut is common like that. Improves the tool life on the parting tool and lessens the risk of chatter on the final part. Like you said though the rest is shit.

[@derek3398]

Maybe he didn't want any interrupted cutting on the final parting? That's the only rationalization I can come up with for the initial grooving.

[@tireballastserviceofflorid7771]

+Derek Denti Parting tools are a real pain in the ass in general. They work best on an un-interrupted surface. So the square profile of the finished part would cause a chatter and generally shorten the tool life and cause surface quality issues on the parted side. Called a pre-part.

[@userwl2850]

why is the piece so far out of the chuck? I don't get any of this machining process.

[@rRobertSmith]

+userwl2850 Why don' t they use square stock to begin with? I guess this is gen one of this program and they have not optimized it yet?!

[@userwl2850]

+rRobert Smith you are right square bar would make it easy but it has a 3 jaw chuck.

[@userwl2850]

+rRobert Smith you are right square bar would make it easy but it has a 3 jaw chuck.

[@nonyabiniss6468]

That chatter tho!🤣🤣🤣🤣

[@panan7777]

Chatter free mill bit?

[@mrkrouse808]

WE NEVER LET A OPERATOR OPERATE ANY THING THAT HAS TO DO WITH OUR OPERATION

[@GeneralG1810]

It's the way it chatters that matters

[@attilagal6672]

Hi there, I wonder if you undertake small metal turn works. I am struggling to find somebody who could help me to clean up the uneven surfaces of my hand cast 50mm diameter watch case. Nothing difficult. I am un the UK, Bucks. Would you help me please? Even just recommend somebody would help a lot. Thanks

[@timnilson]

Looks very nice. Which CNC Lathe is this?

[@leedavies22]

Tim Nilson It's a Doosan Puma 2600LY CNC lathe with full bar-feed.

[@amiducheval]

I feel the machining process can be hightly improved. Feel free to contact me.

[@123itsjustme1234]

why is the bar out so far? should have done the first groove cut last.

[@jefftompkins6202]

Talking about the groove, some CNC's don't like interrupted cuts and would throw out clutch's on servo's. I don't know if it is in this case. But yeah definitely sticking out too far.

[@TheHelicommand]

Also to get rid of the chatter, move you work closer to the chuck. If it clears the chuck it clears the chuck, no need to all that stick out its bad practice.

[@Urmomsdumb53]

even better, ditch the 3 jaw and run collets, and then run close to that.

[@nenadratic6319]

many people complaining about program. It is not efficient at all but who knows why is that. Many times wee need only a few parts and do not want to spend to much time to programming and optimised . Lately I'm using a lot Dynamic milling ( Dynamic Opty Rough in mastercam) as much as I can but some time I go slow and simple cutting a lot of air but for that time doing som other part or JOb . Once I hade order for 1700 parts ( a litle complex shape , with tight tolerance ) than I spend all day to make programm ( acctualy all night at home ) and next two day runing to improve all on the fly to the perfection . And 6 month later I had same order again . Than I also improve exsisting program for another 10-15% . But ih you make only a few pcs , and you have some tools in machine already , I can go the simpliest way and chiper . It depend how wee will make some part of many factors. Once BREMBO company ( the best brakes on planet) developed special caliper from mono block the Mori Seiki company developed a CNC machine just for those calipers , with probably the most optimum solution possible . But then that machine will make in next decade a milions and milions of calipers .

[@jairohuizar5325]

No entiendo porq le hizo primero el groov. Eso le resta rigidez y por ende vibra más al maquinarse.

[@crozwayne]

Doosan lynx?

[@JustStainless]

DOOSAN 2600 PUMA LY

[@Kislyj225]

программа не правильно написана. зачем сначала подрезал-потом точил и в конце ещё обрезок обрезал когда можно было точить зеркально

[@PerryThePlatypus3]

CHATTER !! Good god!

[@pf0xx]

Was this program written by someone with less than a month of experience?

[@garthn2561]

If you can't tell, then you clearly have no experience whatsoever. Fired

[@nonyabiniss6468]

This guy likes to party!

[@manudehanoi]

there's a mill in your lathe !

[@phucboinc1390]

Metal name???

[@dejanbrice8774]

+Phucbo Inc Brass. As in the title.

[@OLd_One-eyeguy]

Could have been programmed much more efficient, lord at the chatter

[@garthn2561]

You are lord at the chatter?

[@multiHappyHacker]

A lot more whining about the program than I expected. 7 minutes for a part isn't too terrible. 15 pieces, 105 minutes total. A couple hours of machine time taken up, most likely well worth it.

[@abhinavgaur13]

Why isn't it cast instead? Is the product just some sample, and not meant for mass production?

[@rRobertSmith]

+Abhinav Gaur It might be a sample that would explain a lot of things.

[@andrewCNC905]

for 15 parts?

[@CameraPPL]

Aside from the program being about as poorly thought out as seemingly possible, why in the world would you run this part on a lathe? This would be an entry level 3op part on a basic mill, or a 2op part with a rotary.

[@troutbum8699]

Lathe means bar fed material means no need to cut up blanks and no one standing there watching it run. Lights out production. 1 op.

[@Urmomsdumb53]

+troutbum86 can I buy that lathe when u guys close up?

[@troutbum8699]

+Owen Harvey Close up? we just purchased 4 new machines including another 5 axis mill.

[@garthn2561]

Because...because...ah, the simplest of things are a bit beyond your little peabrain, aren't they...

[@antonlancevic652]

Lathe is definetly not the best machine type for this product.

[@ngwilkum]

+anton lancevič how long have you been a CNC machinist, you going to turn it then bring it to a mill to do the other operations? BTW its a turning center, mill and lathe.

[@RoboticsNShenanigans]

I'd just work it closer to the chuck. That poor end mill.

[@bydboys]

srx a du progrès a faire vous avez des gros problème de vibration pourquoi faite vous cette plonger au debut ?

[@dgretlein]

Doesn’t seem like the best, nor right, way to make these....

[@johnharry7379]

Most the commenters on here are just cnc students thinking they got it all sussed. Hey they done 8 months that along time.....

[@user-fp3hk3uh1i]

Херня а не технология. Очень много дорогих отходов. Проще отливать под давлением.

[@SubramaniamLakshminarayanan]

Quote "When doing a 15 off nothing else matters, except getting the shape as quick as possible." Unquote. Is no justification for less than efficient tool path optimisation, material management and job overhang and chatter. And if getting the shape ASAP is the criterion, time and effort spent in making this video and posting it on YT defeat your 'nothing else matters' statement.

[@99unclebob]

I would never hire any of you students, you dd not even read the heading description, so you have failed the first part. it is a small batch of parts, you failed again. time is money and the customer needed these and perfectionism has no place in this job. Only if you may run 5000 parts, you do your QA checks every 50 for the first 500, Inspect again, check your tool wear and run program runtime parameters. then and only then will you adjust anything in the program. Not before. Observe before you comment, otherwise your out of a job.

[@regenbui]

poor programming, cycle time can certainly be halved. certainly not a craftsman who wrote the program

[@garthn2561]

Oh great. Another 30 minutes programming for the 15 parts would have saved at least 15 minutes machining. Fired.

[@phsphlphc]

Ha ha made in China