The Fjell Clip is Done | Knifemaking Tuesdays 126

[@HughMessenger]

This is the kind of Grimsmo content I live for, an hour and a half deep dive on a pocket clip. I've resigned myself to the fact that I'll never own a Fjell, but it almost doesn't matter. Following along on the journey has been a joy in itself. Maybe it's just the gummies, but John's infectious enthusiasm and natural on-camera personality really makes me feel like I'm in the workshop with him, just hanging out, machining. It's been a journey, and I really look forward to seeing the finished product.

[@SinisterPrince]

I appreciate you taking the time to share this with us, John. Good stuff.

[@Brisco1983]

I got away from collecting about 3 years ago. It all started with me trying to find a knife to replace a button lock. Bull Shamwari, CRK Inkosi, Sebenza and everything in between. All though they were fantastic, they never replaced what I was looking for. So I sold everything for what I paid. I have a couple now but am a one knife guy at heart. The Fjell is it! I honestly haven’t wanted a knife as bad as I want this. These videos are great. Thank you.

[@stacybehrens7152]

I have no practical need for a knife like this and I’m not a collector but I have gotten so much value and entertainment from John on his KZbin channel and podcast I kind of feel like I need to buy a knife as a thank you. Appreciate all you and your team do John.

[@sonofcenarius28]

I am so excited about the fjell. What a cool design!! It's also nice that it's a little smaller. Can't wait to see one in person!

[@BaronVonBeef]

For knives without a clip, how about a small blanking plate with your logo on that fits into the same slot?

[@stacybehrens7152]

First thing I do with knives with a pocket clip is to remove the clip. Nothing against them but I don’t use it and hate how the clips feel in the hand. Would be nice to offer a version without the clip which would also be easier to manufacture.

[@flosch5444]

​@@stacybehrens7152 in all seriousness, what is wrong with you? 😂

[@stacybehrens7152]

@@flosch5444 probably a great many things. 😂 Seriously, Grimsmo knives are terrific and I deeply respect the work that goes into making them. John is a great guy. I just don’t need, want, or use a pocket clip. Showing my age but clips are something of a recent fad - none of my knives in years past had them and that’s what I’m used to. Now it’s almost hard to find knives without one sometimes. Don’t need a discount for a clipless knife. Just seems odd to have a knife with so many options but removing the clip isn’t one of them.

[@XciterD]

@@stacybehrens7152 Agreed! And I don't think there is anything wrong with that preference :)

[@SaucyWizard1]

To measure the taper : one way would be to produce a tapered gauge which doesnt even come close to bottoming out on the taper. So in essence a gauge which is longer than the tapered feature as well as such that it protrudes out a substantial amount. Even in process inspection could be used in this manner to compensate directly if the gauge doesnt stick out the necessary amount. Using a depth mic or even a depth gauge/caliper on this protruding gauge would help you assess exactly how your taper is doing. Using tangent of the taper multiplied by the corrector can be used to compensate at the machine. This change given the tangent of the taper angle multiplied by the intended axial change would have to be compensated on both sides of the taper. Previously I have worked in a shop with conical tapers and this is exactly how we measured them and compensated. Hope this helps and good luck but yes I agree changing the taper angle would change the tolerances as well. Message me if you would like more of a description of this method.

[@RavenRof]

Absolutely love these kind of videos. Thank you 🙏

[@dualsnorkel]

Love the process of design and your enthusiasm. One suggestion it to not forget you are making an ambidextrous knife being a button lock so the clip should be reversible. Just a thought.

[@innominatum9906]

Love that machine, John! =) Please. I love when you show the features of a machine but pause the operation and dont go looking inside it while it runs. I know you already said it yourself - but I saw a coworker get his hand ripped off because he wanted to grab a tool for me. He had surpassed the locking mechanism without anyone else knowing about it.

[@John..18]

Absolutely superb,, just gonna watch this again,, lol.. I know I'll never be able to afford one of these knives, but boy, do I love these videos,, thanks John,,, 👌

[@rustydog2112]

John, as a manufacturing engineer and not a mechanical engineer, it's fascinating to watch the initial process, review and iterative design

[@josuevivas]

This video is fantastic! I love the deep dive on to the machining strategies and how the excentricity is used witht the vise: I can't see other way of making this part if you were to have a "normal" 5 axis dual spindle mill turn.

[@franky1636]

Amazing! Great job John!

[@flagdrones]

I get the Fjell and Rask but there will never be anything close to the Norseman for me. Plus, I have large hands that need a full grip. With a little patience and watching my inbox closely, I finally got selected for a Customer Choice Norseman and ordered my perfect dream folder. I reviewed and approved the actual knife a couple of days ago and can't wait to add it to my collection! My current Norseman will continue to be my daily carry, my 2nd Norseman will be more of a collectors version and will never leave my home without a buffalo leather pocket sleeve with clip to help keep perfect for years to come. I love the Grimso way and hopefully I'll find my wayward Saga soon that I misplaced a few days ago!

[@95dodgev10]

Food for thought... what about an integral pocket clip? It would be probably a pain but ive seen some micro sas for slitting the tabby part where it would meet the handle. I'm not a micro machinist so maybe it would be impractical.

[@Forbesy1]

I think this is actually a great idea. If you're going all in on making the most ridiculous integral knife then why not do the pocket clip as well? I think the pocket clip is actually very ugly on the knife and doesn't match at all but I think your idea would fit this knife perfectly and match the idea behind it.

[@95dodgev10]

@Forbesy1 he ended up stating that he didn't want to but I still think it would be a cool feature. It adds to the whole integral concept plus it could make this knife kinda the Ferrari or Bently of knives with smooth seamless transitions from features. His other knives are more of the rugged yet still clean styling.

[@marcg2233]

LOL, I remember you trying to get blades to work on a grisly??? cnc Frankenstein machine! I am so proud of you! one day i will buy a perfected Norseman:)

[@poshdonkey]

My first thought was ball detent behind a dovetail. You obviously know how to make a ball detent and spring from other parts of the knife

[@pouriakhanbolouki3855]

Just a question about the initial design, What was the main reason to have two parallel snap fit features on the clip instead of one?

[@larryblount3358]

What about the clip that slides in and then is clamped in with a small set screw?

[@weekendhack.whatsnext]

Increase your angle from 1.5 degrees to 4-6 degrees on both parts and you will reduce the linear travel distance with the same tolerances.

[@dexteraeschliman5817]

The willemin is such a sick machine.. it just dawned on me that if it had a big enough spindle bore you could literally make the entire knife and all components on it

[@johannesfossi5561]

yeah it's amazing. Kinda dreamy machine. To have is with a barfeeder would be sick.

[@stevenrichardson7882]

My quick thoughts about the clip and I haven’t watched to the end yet is to make it so you slide it in at 90 degrees then rotate it into position on a kind of cam to lock it?

[@lilchirp4846]

Had the same thought

[@ipadize]

i like when the machine goes wOoOoO 😂 30:55

[@tctz28]

Can you move the diameter that the ears hook into so it’s always pulling the clip to the locating angles. Or increase the angle to decrease the amount of depth change from side wall clearance. EDIT I should have finished the whole video before making my suggestions. Glad you got it figured out. Any chance of there being a lefty clip option?

[@TheDayzman]

Damm thats neat You figured out all the advice I had on your own.... Maybe one thing: you can probably do the fineshing of the radius and the back in one go so you safe time repositioning and one line less to blend in. And a secone one. with a bigger slidding saw you can cut from above and dont have to mill out that much material, or use a custem ground crabide tool (like a saw but integral to the blank) so the tool radius is a lot smaler = less material to remove = more sabilety. How much squish do you have on the felxible parts on a theoretical zerotolerance? Love you vids, keep it up

[@ReiniGrauer]

The resonance thing on the roundover you might be able to fix by finishing the surfacing on that roundover before you rough out and finish the contour around it. Let it work out the vibration on material you are going to cut away later. Or rough out just what you need to finish that surface before you even touch the rest of the part.

[@kenrobertson8239]

Love the "TEMP TEMP TEMP (4)" in the toolpath names. :)

[@bybakermade]

Did the logo on the clip look shifted to the right slightly?

[@lilchirp4846]

That would be like the dovetail neck joint on some guitars which is tapered and wedged in place..

[@DoRC]

"when filming your brain goes dumb" no truer words have ever been spoken :-)

[@Crooked...]

Maybe some of the 'slop' in the clip would lessen if you reshape the 'ears' like you see in plastic cantilever snap-fit joints. The angular nature of the 'exit side' of these cantilevers can act like a second taper. Angular ears with a backside around 45° will grap even if they are not in the perfect position in the knife handle pocket.

[@adamwisialowski2003]

Sounds like you need to add a wire edm!

[@michaelhammond7115]

Two opposed locking pin/clips Ying/yang style where you twist them into place

[@137Brandon137]

I see you have a duramax in the background can you make a video on it?

[@ChatNoirLe]

I suppose you could press in balls to deform the walls to match the tolerance, match clip to handle via a gauge pin to measure spacing and grab a specific sized ball. Or just use a larger ball and press so its permanent.

[@plantvill]

Great video!

[@HybridiHippo]

Idea on the air, how about adding nice diameter O-ring 3-5mm long in to slot to compensate tolerance. It push out "the ears" out.

[@JaredKaragen]

Fanuc controls have a parameter you can set to change units from metric to standard.... Check the parameter manual for your model controls.... they are all in there. lots of options you can control yourself as an end user just by setting PWE to 1.

[@jongmassey]

Metric is the standard

[@DanRudolph]

while true that you can just flip that bit, there are many internal macros (tool changers, probes, tool setters) that won't work when you make that change

[@hap328]

Please show us the non-wiggle closeup money shot!

[@JDesignSwe]

John, was it just my eye or is the logo on the clip slightly off center?

[@UnderearthEDO]

What if you had the clip at the pivot location instead? You already have the hardware there with the pivot to use as a skrew to mount and clamp it down. I think it would look pretty neat too. You'll have an issue anodising with the clip as is as the side profile you'll have the handle colour interrupted by the clip. That'll impact the look from the top side i think. Otherwise looking awesome.

[@robertkoontz7865]

You could measure the frequency of handle with a scope. Then induce that same frequency back into the handle. It’s a lot for a nickel but it would counter the bad vibes.

[@bigbird2100]

Great video 👍 The ear's need to be longer and a presetting tool to get the correct tension on the ears 😊

[@TheEvalChicken]

Finaly some Willemin Content 🤙

[@frederikengelbrecht]

I know this might not be something you would do but why not EDM the future's of the knife and the clip?

[@SuperSecretSquirell]

If you could make some kind of insert that would force the ears out which would pull the clip in against the tapers. Installing and removing something that small would not be fun (and probably a nightmare for customers).

[@ctrhenry]

I would think the “ flex” in the ears is always going to allow wiggle

[@grumble2009]

Love the video! You don't need to take written notes - just narrate the video with what you want to change, then watch the video at your desk and tweak Fusion.

[@0ADVISOR0]

1:08:55 why not make ears in ears? To bend the Clip ears with the knife ears against the wall. BTW awesome Video! Love it!

[@flagmedownmedia]

tl;dr Not sure why you didn't retain the clip with a ball bearing and spring, like the way a socket set does.

[@wesbarnes1847]

why not a flush filler piece to run instead of the clip for people who want to go clipless? or even a lanyard loop insert? options are good...

[@robertangueira6662]

There is no question that u r an incredible genius on these matters. Some free advice from a lawyer… why give all of this valuable information to your competitors?

[@SamHansen]

istm, what you want to do is stop trying to figure out the tolerances and machine a feature with tension that pulls the clip into a hard fit regardless of the tolerances. In other words, the taper was the right idea, but redesign the feature to introduce tension so it's always trying to wedge itself further into the slot vs. clicking into place "just so". The axis lock would be an example of this. It doesn't matter if the crossbar wears, the spring is always just pushing it further up the shaft further wedging things into a static position. I suspect a different shape of the little dog ears would contain sufficient tension - though the galling/friction of ti-on-ti might be a problem that needs addressing. I don't know if you could have some kind of brass micro-bushing or something like that?

[@billyraibourn758]

I would like to see the clip ambidextrous for us left-handed guys.

[@andreasgeidnert3885]

The logo is not in center of the clip left to right, i guess you already saw it, but anyway :)

[@piwko4]

I feel like ur doing this backwards. Why not taper the handle and the clip, like a morse taper, and then design the clip based off how deep it sits, instead of finishing the clip and then dialing in the connection. Finish the connection first, then dial in the clip finish

[@chasingcapsaicin]

Dry ice/Hot water interference w/o temperature deferential solid. Why not, no need to mess with alloys

[@piwko4]

Like a Morse taper... lol

[@lucasmagno9148]

A good example of a taper lock is a morse taper on manual lathe tailstock. The only geometry that matters is the angle of the taper and the circularity. The diameter at the start/end doesn't matter anywhere near as much. Anyone who has used one knows you need a lot of leverage to get a tool out and doesn't take much effort to put a tool in

[@oOMickanOo]

we need a new shop walkthrough. a long video 😀

[@jamesbarber4224]

Make the clip smaller/ shorter

[@MrAlekoy]

Keeping with the Norwegian names I see

[@benjaminknudson5997]

Actually they're called magazines not clips

[@Forbesy1]

I can absolutely appreciate watching you put your everything into this knife but in full honesty that clip is hideous and doesn't match the knife at all. I do however think the system is extremely cool just doesn't provide a lot...

[@aronandreas]

Inches makes you go to the moon. Metric gives you the distance. ❤

[@Moronicsmurf]

Does he not realize that, machinist tapers, for example BT30/40 and 50 holders, have a very specific - TAPER.. because its self locking and are not wiggling around.. Why re-invent the wheel / the formula. Go open a machinist handbook from the 30-40s.. there is plenty of math diagrams regarding tapers...

[@petermoore9504]

I wonder if a Chinese knife cloner finds these informative?

[@miraclo3]

Probably but most clone knives manufacturers aren't going to these lengths for quality and if they are then there is enough skill to manufacture their own quality products and designs.

[@Biggie_Johns_Son-v3i]

@@miraclo3 too late, they already know all this and if they don't their neighbor next door does and they all share info to make their country more competitive.

[@Phiz787]

Replace Chinese knife cloner with hobbyist machinist, and your answer is yes.

[@miraclo3]

@@Biggie_Johns_Son-v3i yep. That's the one thing I found impressive with working with overseas manufacturers is every business is extremely open about their production and constantly share information between companies.

[@mophomanners]

​@@Phiz787 let them and their tormach have at it..

[@zviper]

I dont want a clip either! please!! I love the design and idea, but i will forsure break or bend it walking by things or crawling around bushes.

[@PanayotovOne]

Use a magnet instead of a small M2 screw. And with a separate tool that has a stronger magnet you can remove the small magnet (probably placed in a tube).