One of The Most Challenging Parts We Make | Saga Saturdays Ep 29

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[@davidwilliams-xc6kt]

these are so cool to watch.

[@chishgre]

I'd look at machining your ID collet back more and putting a spring-loaded ring behind the clip to help your eject. Also, if you've got any open external mcodes on that machine, you could farmer-rig a tool-breakage detect switch on the side of your subspindle. You should be able to run all of that from a macro. Or put a star probe stylus on and probe in the X to see if your cutoff happened.

[@BerndFelsche]

"Second" time around from a blank sheet avoids legacy compromises in machining. And opens the door to new challenges. 😊. If you're not pushing to produce, then you can make better choices... perhaps backing off a number of steps to take a better path.

[@doodysdaggers]

I really wish more knifemakers would take the time to do videos like this. It really makes people want your product that much more once they see the level of precision and skill it takes to make a knife of this quality! I know nothing about machining but I find it so interesting, keep ‘em coming! 🤘🤠

[@fredwu8613]

Just want to point out that you shouldn't be using dead length collet chuck with this type of expanding collet. The clamping area will thrust forward while actuating.

[@tighttanium2692]

Your signature clips are awesome!

[@jonahmatanky9380]

Hey John, cool video. I bet you could make those on a Brother M200, and with some creativity (maybe a spindle gripper?) could even automate it as well.

[@GlassImpressions]

Keep the content coming John! Love it!

[@aoverhage5181764]

John: You might look into Keyence vision sensors. Super simple interface and you can check presence absence and it "learns" so you can tune it. I think they were like 10K, but you could easily prevent that much damage I would think. We had a demo from a sales person at work. Interesting capabilities.

[@HudsonLighting]

Do you know which product in particular, I'm going to take a look at this, we have an issue with aluminium swarf and it could be worth looking at for night runs

[@aoverhage5181764]

@@HudsonLighting I think it was the iv2.

[@Panzax1]

Lathing ? What I do on a lathe is turning ;)

[@RossiDeakin0406]

New product alert ⚠️ Saga flash light pen combo 🤔👍🇬🇧👌👏

[@eformance]

You have some very good employees! Do you turn the sub collet with a ring gauge clamped on the OD of the unmachined area?

[@zviper]

clip looks fine John, dunno why you think something went wrong.... LOL

[@JDesignSwe]

Looks good, not sure how the lathe works with the driven tools and sub spindle, but would it be possible to make two clips back to back ( allowing the clip part overlap each other with 180 deg) that would reduce the wasted material but increase the bar length slightly.

[@flikflak24]

Question Do you really need a ball end mill with that long flutes? Or could you use a necked ball end mill instead?

[@95dodgev10]

Man that crash was quite the.. saga... I'll see myself out

[@innominatum9906]

[@poetac15]

Thanks for posting

[@davekeyes9660]

John does your Nakamura have Cut Off Detection? Our NTY3-150 has it. You command a G??? Just after parting off and before the sub-spindle retracts. The sub-spindle does a 1 or 2mm slow low torque retract and alarms out if there is any resistance. I cant remember the exact G code. I can check at work on Monday. I think there is also the ability to reduce the torque setting of the b-axis which is also useful for feeding on to the part during pick offs. I havent programmed the Nakamura in a while so im a bit rusty. Saying all that i suppose the Clip is a flimsy part so you might not be able to get your torque settings low enough before it alarms out.

[@HudsonLighting]

It definitely does G3XX something I believe. Occasionally I forget to turn it off on single spindle parts and it errors the control 😂

[@HudsonLighting]

Okay it's G300 B[#5026+1.0] this basically pulls the sub back 1mm and if there is tension alarms out. Also with the clip ejecting, if you drill a hole through the ID expand collet, you could use M48 to blast the chips and even the clip from the collet.

[@590Basti]

Why don’t you make a keyway in the collet and use a 2mm (or smaller) pin to push the clip of the collet and afterwards you can check if the pin ist still there with your tooleye? And sry für english 😅

[@168mfg_ShawnNelson]

Would love to show you something cool we make on our MT508. Super cool part

[@Razzing87]

Have you though about looking at 3d printing for the clips?

[@Dakakeisalie]

Every time you talk about the pen clip on BoM or here I can't help but think there must be a better way to make it that doesn't turn 85% of your stock into chips

[@AlMg1SiCu]

Cheap pens make them out of stamped and bent sheet metal which is highly efficient and keeps waste to a minimum, but on a high end pen I don't think efficiency is the point.

[@Thewaldo12345]

He could mill and thread mill that bore off center and would be able to use a much smaller bar stock.

[@seanparker3662]

Maybe waterjet L shaped pieces out of flat stock and fixture them. That's what I'd consider if there was any substantial savings overall.

[@stephens4951]

Does your ball end mill need such long flute? If not shorter flutes would increase the rigidity of the tool. Which brand of endmill do you use for that?

[@HudsonLighting]

Nakamura ❤❤❤ John have you managed to do anything in particular to ensure you catch a part every single time?

[@troyhetherington6744]

Would this work better on the Tornos? Or even the WM?

[@snowgoer540]

I thinks John’s version of “be a surgeon” and yours are vastly different… 😂

[@goober-ll1wx]

your website is down!

[@gertkristensen6451]

not easy to copy for china

[@andrewnichols1470]

What are those racks listed as on Amazon?

[@muddasarakram419]

So, you don't run breakage detection on your tools for production...? That's not wise.

[@importanttingwei7747]

Not paying 900 dollars in a pen

[@platin2148]

Did you think about laser 3d printing for that part i mean must be quite expensive too loose that much material.

[@MrMaxymoo22]

You could certainly print them, but then the $300 pen becomes a $600 pen.

[@spikeypineapple552]

lmao

[@gertkristensen6451]

make it bigger

[@SuperstarComponentsLTD]

Why not mill it? Looks loads easier with a neat fixture and possibly mounting wax I’m always disappointed by milling done on a lathe. Lots of problems and dog slow

[@stefanstahl617]

they bought a Willemin mill turn to do this

[@SuperstarComponentsLTD]

I sorta see the point on a willamin but it just looks to me like spending a lot of time and energy on forcing a mill part to work on a lathe just to get a round hole which is easy to do on both genre. If it was reliable to leave barfed 24/7 sure but it appears it’s not. That said always interested in different ways to do something. Stretching the brain cells.

[@MrOmarchingon]

“Lathing” 🤦‍♂️

[@EldenLord84]

Was recently picked for a Rask spot after years of waiting, but decided to pass on it. $990 for a very basic configuration. I love your work, but double the price of a Magnacut Sebenza for RWL34 just doesn’t make sense in today’s knife scene.

[@MrMaxymoo22]

You want the Ferrari you gotta pay Ferrari money.

[@EldenLord84]

@@MrMaxymoo22 I own two Norseman and a Saga. While they’re certainly top notch, this is not a Ferrari vs Ford discussion when compared with CRK. One could argue that CRK and Grimsmo have similar quality and fit and finish, but you cannot argue that RWL34 is somehow better than Magnacut. There is simply no justification for the 2x disparity in price.

[@MrMaxymoo22]

@@EldenLord84 my point was more about the brand than the quality. The Sebenza is the Porsche, it's just as good as the Ferrari, but it's not a Ferrari. I can't justify a Grimsmo knife, but I have a Benchmade. It's like a Lexus.

[@Basement_CNC]

if you complain abaut the price on a grimsmo product ..... you shouldnt buy one😂 there is no value here, its art (thats still usefull) and the cist is explained by the tolerances and the machining time of the grimsmo knives, it easily is 8x the amount of a crk, as well as the amount it takes to get a picture of every single knive online..... grimso is a custom semi-knive crk's are high quality production knives there is a difference, even if you don't see it or value it

[@AlMg1SiCu]

Car comparisons aside, when you have a product that sells out almost instantly every time it's usually not a good business decision to lower prices. If people buy it, the price is right. That does suck for those of us who can't really justify it compared to lower-priced competition, but thankfully there are plenty of good options across the spectrum of price, style, and quality.