Knifemaking Tuesdays Week 57 - Norseman Blades and fixtures

Ғылым және технология

We're making fixtures and Norseman knife blades this week!
www.GrimsmoKnives.com
Our long awaited third batch of Norseman knives is finally under way! For this week's video I made a few new blades to test out all the changes I've been making to the design over the past few months. All new fixtures, all new CNC code, as well as some subtle yet wonderful design changes.
The first few minutes show how I made 6 new fixtures from 3/4" 6061 aluminum, 18" wide by 12" tall. I held them down to my vacuum table and faced them all with Tormach's Superfly facemill. Doing them all back to back ensured that they were all exactly the same thickness, making pallet changes easy and repeatable. I also bored 18mm holes in the back of each pallet so that I could press in the 12mm bushings that align to the VacMagic vacuum pallet changer. Then I flipped them and faced the top side to a thickness of 0.700. I also made a new vacuum grid plate that's 18x12, to go along with the 14"x14" one that I have. My table travel is 18"x10", so I like having a vacuum grid fixture that's the same size as my travel, it lets me maximize the table space.
In this video I show a lot of cool endmills for cutting out the blades, how they're being used, as well as closeups with descriptions. Almost all of the endmills that I use these days are from www.LakeshoreCarbide.com. I even had one custom made for a specific purpose! I show closeups of their rougher, finisher, and my custom endmill, as well as all of them being used on my blades.
The first blade had a few minor issues, no biggie, I changed the code a bit and ran a second blade. The second one turned out great except for one minor problem, the corner rounder went too deep. Again, no biggie, easy fix. Now after a few more changes I'm ready to run an entire pallet of 12 blades. We're making 65 knives in this batch, so we're going to be busy!
Thank you for watching, and I will try to get the videos back onto a more regular schedule. It's not easy, this 25 minute video took me 4 hours to edit!

Пікірлер: 147

  • @GeofDumas
    @GeofDumas11 жыл бұрын

    a 1in radius mill is a genius idea - well done!

  • @JohnsonKnives
    @JohnsonKnives6 жыл бұрын

    Watching these older videos just makes my day.

  • @shadymattuk
    @shadymattuk11 жыл бұрын

    Great stuff, John. Cant wait to see the dammy Norseman. Damascus pocket clips will look fantastic too!

  • @kingjamez80
    @kingjamez8011 жыл бұрын

    And whoever complains about your videos should stuff it..... Do them how you want, it's your video and you do a great job!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Finally! I'm writing the code for the lefty blades tonight and will cut them tomorrow. Can't guarantee it'll make it on film, but somewhere along the line the lefty knives will definitely get filmed.

  • @rlockwood2
    @rlockwood211 жыл бұрын

    I like working this way as often as possible. It doesnt typically save any time, but often makes for an easier work flow. It can also sometimes save on bolt swapping, but you'll go crazy trying to optimize every last bit of every part-- and will likely spend more time optimizing than you ever save :) Its important to remember that if the machine is running un-attended, and you're achieving your part quota, cycle time is largely insignificant.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    That's a really good suggestion. I briefly considered it while coding, but didn't think about it too much so I just went with it. I had to use the finishing tool on the flat tanto portion on the spine of the blade, so I figured might as well do the edge too. But you're right, that's a few inches of cut per blade that the endmill doesn't have to do.

  • @capnthepeafarmer
    @capnthepeafarmer9 жыл бұрын

    That air suction you're feeling is "wringing". very cool natural phenomenon.

  • @ErwinEnterprises
    @ErwinEnterprises11 жыл бұрын

    I've never seen a ringed pallet. didn't think that was possible w/o heat treat, grind, and lap. Good Job.

  • @texaslonestarrider
    @texaslonestarrider11 жыл бұрын

    Fantastic Video! Thanks For Sharing!

  • @victorinoxfan
    @victorinoxfan11 жыл бұрын

    Awesome video mate. You guys just keep getting better

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Like butter is right! Most of the blades are done, Erik should get 'em all ready for HT tomorrow. Probably do bearings next, the ones I made turned out sweet! 1/16" balls on a 3/16" hole, 10 balls spaced as far from centerline as I could get 'em. Should be a cool video.

  • @teletubbs2
    @teletubbs211 жыл бұрын

    Thrilled to see you making videos again, John. :D

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Awesome, yes we're doing a lot more than just scales these days. Enjoy the videos!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Not all are, but most are. Because it rocks. It's relatively easy to get it to work right, simple design, and customers love it. Liner locks are also popular. Button locks are less popular but just as awesome, if not awesomer, than frame locks, but hard to make them perfect, especially for flippers.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Yup I did get the pressure sensor, it's saved me many times!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks Karl (or Alex). For some op's I do 5 thou, but the rougher leaves a wavy surface so I wanted to make sure it gets taken off, so 10 thou worked great. If I'm using a regular 4flute and a finisher, or just a regular endmill with a finish pass, I'll do 5 thou.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I'll try to make an enclosure for my new compressor, should help a lot. Thanks! The new clamps will be half moon shaped and grip the blade spine a lot more securely, you nailed it.

  • @cncshopmill
    @cncshopmill11 жыл бұрын

    thanks John!

  • @dajohnso4374
    @dajohnso437410 жыл бұрын

    Custom JG end mill... Awesome

  • @kingjamez80
    @kingjamez8011 жыл бұрын

    Great video, love the machining details. That Tormach tears up the steel, it's really an amazing machine.

  • @mwalle66
    @mwalle6611 жыл бұрын

    Ahhhhh my lefty is in the works. Thanks John!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Yep, always climb mill even when roughing. For slotting it really doesn't matter especially if you're doing a climb finishing pass.

  • @grumpyahole5777
    @grumpyahole577711 жыл бұрын

    Looking good bro. Will order one when I get back on my feet

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks! The key to making parts that look good is to never be happy with anything you make haha. Then eventually you start to admire your own work. Shop lighting is the same, but I got an LED panel light for my camera so everything seems much better lit. I need to put a fluorescent or two above the mill.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I'll check that out, thanks. I want to say I tried that a few years ago but it was still really loud. I'm also glad it's not an oil-less! I used to have one, it'd scare me every time it came on.

  • @JohnGrimsmo
    @JohnGrimsmo10 жыл бұрын

    The coolant recirculates, it drains to a tank under the machine and there's a pump in the tank that spits it back to the cutting tool again.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks! Enjoy the vids, lots more coming, even if they're not exactly on Tuesday...

  • @shaneharvey1026
    @shaneharvey102611 жыл бұрын

    3:30 was right. The electronic tool setter is a great way to add confidence in your depths of cut. Thanks and cheers.

  • @bcstrings1
    @bcstrings111 жыл бұрын

    thanks man i needed that cnc shot in the arm ---killer job --i look forward to your vids good luck on everything you do -------- man talk to you later!!!!!!!!!!!!!!!!!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I engrave at max 5,100 rpm. For these stainless blades most of the tools are run at 4000-5100, with the exception of the toroid (2120) and a cobalt 1/8" drill (1900). And yes, the ATC has an internal air blast that clears chips and coolant, works great at 120psi!

  • @GravityRoller
    @GravityRoller11 жыл бұрын

    John, Finally found your KZread Channel. Have read multiple posting & in many places related to Grimsmo Knives. From what I'd read, thought you were only doing CNC scales. Looks like lot's more now. SUBSCRIBED - now to explore your videos and will check in to website. Regards,

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Yup, the compressor noise was especially bad in this video, bothered the crap out of me while editing it. That Jun-Air looks sweet, but again, not big enough for my needs. I might build an enclosure box with sound deadening for my new one, as long as it doesn't overheat.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Climb mill for EVERYTHING. If you haven't seen the difference in surface finish between climb mill and conventional mill, chuck up a block of aluminum in a vise and skim the side of it with an endmill. clockwise around the outside is climb, ccw is conventional. Just do this manually with the keyboard. Climb leaves a nice finish, conventional leaves weird burrs stuck everywhere. Also doing rough passes and finish passes, even with the same endmill, makes a nicer finish. Leave 0.010. Cheers!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    A heater is one of those things that I would love to get, but I'm always like "Oooooh shiny tool over here!" haha. One day for sure.

  • @Liberty4Ever
    @Liberty4Ever11 жыл бұрын

    I love these videos. Thanks for making them! 20:40 - "See how annoying that air compressor is?" Syclone Air Compressor on Amazon and other sites. More expensive, but only 60 dB! And I think it'll last longer than my noisy Porter Cable that I never use anymore. BTW - Flipper Gimping would be a good name for a rock star. STILL loving the Tormach SuperFly carbide insert cutter.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Cool stuff! I've been meaning to get a flat stone so that I can lap the plates flat and knock off any burrs that form during machining, but I have no idea where to get 'em.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    No promises that I'll be making lefty integrals, but I'll consider it.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Only in my head so far, got some cool new ideas for it too. Once this batch of Norseman knives are out the door and Erik is starting on the next batch I should have some time to start working on it. I want to have a bunch to bring to Blade show at the end of May.

  • @Vertigo010
    @Vertigo01011 жыл бұрын

    Awesome stuff guys! You've definitely been busy! And, seriously, I'm just joking around when I razz you here. Pay me no mind. It's exciting to see the damasteel too! Can't wait! Keep up the great work guys!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    That would be neat, I haven't seen any options like that in SolidCAM. In GWizard, my speeds/feeds calculator, it can calculate speeds/feeds based on engagement angle, but you sort of have to pick the tightest angle and just use one setting for the whole pass.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Are you guys talking about the surface finish on my pallets? Tormach Superfly cutter with aluminum insert, 0.010" roughing pass at 2500 and 25ipm, 0.002" finish pass at same, 10ipm Z feed into part.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks bud! Those compressors look cool, but not big enough for what I need. I want to get at least a 3hp unit with a 60 gallon tank. That way I can run the vac pallet, mist, and get a bead blaster.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I didn't show it, but I've got a huge piece of Timascus the same size as that Damasteel which is getting made into a Norseman. But they won't both be on the same knife, sometimes that's too much visually and too expensive. Although for fun I should assemble them both together and see what it looks like....

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Yup!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    The Nirk Tighe is awesome, I know Brian pretty well, he's who I bought all this blade steel from. The original is exceptional but the CRKT version is really well done too.

  • @georgezarifis7409
    @georgezarifis740910 жыл бұрын

    Could you please make a video in which you make a knife from start to finish? (blade + handle + assambly)

  • @russtuff
    @russtuff11 жыл бұрын

    I'm definitely not satisfied, so maybe I'm on the right track ;) I remember you mentioning the camera light in a previous video, but it looked even brighter in this one.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Interesting concept, and I like the suggestion where instead of having nothing nothing nothing boom 12 blades done, we can have a few finished ones at a time. However, I think overall my way is more efficient because when I start the day I can start a whole pallet full, not just part of it. And while the whole pallet is running, there's time to spend fixturing the next one and scotchbriting all the finished ones. The difference might be negligible by the end of the day, but I like the idea!

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Not sure exactly, I used Gwizard to calculate speeds/feeds. 4100rpm, 8.2ipm, 1/8" DOC in high carbon stainless. I originally did it at 25ipm but the spindle couldn't keep up haha.

  • @Southardknives
    @Southardknives11 жыл бұрын

    Wicked awesome. This batch already looks more butter.... I mean better. ;)

  • @KPSince1953
    @KPSince195311 жыл бұрын

    Thank you John! Not enough makers look after the lefty community. A surprisingly high proportion of people are left handed (1 in 10 i think). Most have learned to use right handed knives but its still a massive market left untapped. When you get around to making the integral I would love to have a lefty version.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I did actually! And it's a lefty too, right? Better be, cause that's what you're getting haha. The blades are all done now, heading to heat treat tomorrow. Handles this week.

  • @Dog-my1yb
    @Dog-my1yb8 жыл бұрын

    how many blades bevels (both sides) can be cut per rotation of the inserts?

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    The finisher isn't chattering in the corners and there's really only one corner that's even remotely tight, the rest are super wide. But I'll pack that tip away in my brain. The SFM I'm using for the indexable is 383 with a 0.007" chipload. Not sure what coating, it's blue/grey, sort of like TiAln but without the purple hue. No coolant eh, interesting, I might try that tomorrow, but the LAST thing I want to do is cause these blades to warp, because that's already a minor problem sometimes.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Yup, it's got its own air blast

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I use CAD/CAM to design and program everything, but you still have to understand the code and be able to make changes all the time. I use Mach3, it's great, definitely geared towards the hobby market but it has no problem doing production work. I am completely self taught, I spend a lot of late nights learning and watching youtube videos haha.

  • @huntergreen99
    @huntergreen9910 жыл бұрын

    Thanks for the info John. On where the water goes. Lol

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Still in my head ;-). Soon.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks! Watch week 52, it shows my new camera at the beginning.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    That would probably leave me with the same problem I was having for my Tor fixed blades, wicked wicked chatter. Disc sander isn't that hard to do, and I'd have to do it anyway to get the flycut marks out. Also, I only want to take off one thou or less from each side.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks buddy! Wire EDM would be sweet but wouldn't it be too slow for this kind of work? I know of a knifemaker who did a bit of it and said it was just too expensive, milling/waterjet was better.

  • @spamboli
    @spamboli11 жыл бұрын

    also frame locks allow you to easily close the knife one handed; which in nice. i often find my self opening & closing my favorites as a nervous habit, kind of like clicking a pen. that way i get more enjoyment out of my extravagant purchase.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    So did Erik! He almost freaked.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    When I start doing pallets that take hours and hours I will definitely run them at night. With these blades the longest unattended run is only about an hour because there are a lot of clamping changes required. The titanium handles should have a longer runtime. But it would be sweet to make a pallet full of something super intricate that takes a lot of 3d milling so I can set it up and run it while I'm sleeping. An automatic pallet changer would be NUTS, don't tempt me haha.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    I send it off for recycling. It's a really fancy powdered steel, so the chips are of no use to me. I try to separate the metals, aluminum, steel, stainless, titanium, that way I can recycle them separately.

  • @MakeItWithCalvin
    @MakeItWithCalvin11 жыл бұрын

    On your fireplug end mill what's the specs you run at vs lakeshore specs?

  • @rlockwood2
    @rlockwood211 жыл бұрын

    Most CAM software will have some sort of feature that will allow a set of constraints that determine which corners need reduced feedrate and which dont (typically set by engagement angle.) Chatter is a relative term. I consider engagement angle among the most influential on feedrate-- and it varies widely from a sweeping outside arc to a tight inside arc. I'll concede however that you'll likely need to replace that cutter due to finish quality rather than it breaking.

  • @Bigwingrider1800
    @Bigwingrider180010 жыл бұрын

    John,did you try water jet for the blanks?

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Any issues have been minor and easy to fix, and most were my fault to begin with haha. It truly is a GREAT machine. I can't think of any maintenance that I've had to do to it in the 10 months that I've had it, other than some adjustments here and there trying to make the surface finish even better. Out of the box it just "worked". I haven't broken or had to replace anything either (except for endmills haha). No idea how many hours, although the computer would tell me if I looked.

  • @makun16
    @makun1610 жыл бұрын

    You are getting really bad chatter and when you are cutting the pocket, it appears you are fulling engaging the cutter which is considered really bad (increased tool wear and probability of snapping the cutter). You should looking into high speed tool paths that utilizes trochoidal tool paths. This will enable faster speeds and feeds while reducing load and wear on both the cutter and the machine. What are you using for CAM?

  • @rlockwood2
    @rlockwood211 жыл бұрын

    I stand by my "most" statement. The one i'm most fond of is HSMWorks, which allows for numerous variables to control which corners get a reduced feedrate. However, Delcam, Mastercam, Gibbscam -- even Bobcad-- all have methods to reduce the feedrate in corners. I'm certain there are more, but i'm intimately familiar with the option in each of those packages. It should be standard by now, so i'm surprised neither of those previously mentioned are capable.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    It would be cool for sure, but unfortunately I won't be getting into jewelery anytime soon.

  • @boneslice
    @boneslice11 жыл бұрын

    awesome brother!! u still workin on the integral?

  • @WillHodgson
    @WillHodgson11 жыл бұрын

    I have a suggestion for the new pallets. Because you have an atc now, you could do something like having two blades in each of the clamping positions. Lets say the first row has two rough peaces having the shape roughed, the second row has two blanks getting the getting the the first side cut... that way each time you change pallets you get two finished blades and then you move the rest down a row. This even out the work you do by hand (scotch-blighting...).

  • @KPSince1953
    @KPSince195311 жыл бұрын

    Can you put the compressor outside when the weather improves?

  • @GameTrailerGuru
    @GameTrailerGuru11 жыл бұрын

    At 16:00 I thought your end mill was going to go right though the bolt. Lol

  • @Mwrs99
    @Mwrs9911 жыл бұрын

    Hey John, Were would you recommend for heat treatment services? Iv got VERY small batches of blades that need a heat treat.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Look up Bos heat treat, or Peters Heat Treat, that should get you started.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Next time a timecode would be nice so I know what portion of the video you're talking about. But if you mean around 3:30, I usually leave around 0.050" or more at the bottom of a drilled hole so it doesn't punch through. Although I could leave 0.010" and be pretty confident about it.

  • @huntergreen99
    @huntergreen9911 жыл бұрын

    John I always wondered where does the water go ? Do you have a drain in the garage ? Just curious. Lol. Thanks.

  • @Arcqueid
    @Arcqueid11 жыл бұрын

    I bet a polystyrene enclosure would dampen the sound of that compressor. You could leave vent holes towards the wall. Great video. Also would making the bolt down claps in the shape of a half moon reduce the play an allow tool movement?

  • @m98custom1212
    @m98custom121211 жыл бұрын

    Where did you get that roughing endmill? Lakeshore Carbide?

  • @mwalle66
    @mwalle6611 жыл бұрын

    Yep. It's a lefty. Thank you Sir!

  • @CxC2007
    @CxC200711 жыл бұрын

    Its amazing .. Other Question: Do you make the Cnc Code line by line, by hand or do you use a CAD software as 3d Studio or ArtCam to gert a 3D model and let the software make's you the code ?? Do you Use Mach3 ? I thought that software was for hobby.... I made my own a CNC mill (example in my vid's) obviously not as amazing as your CNC.. Where did you lernt CNC programing ? are you some sort of industrial Eng ?.

  • @IhateYoutube
    @IhateYoutube10 жыл бұрын

    John, The American Dream is alive and well! I love watching your videos! Great work and fantastic final product!

  • @IhateYoutube

    @IhateYoutube

    10 жыл бұрын

    Correction "The North American Dream" Have to be Geographically Correct! :)

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Thanks! They start at $450 USD.

  • @CxC2007
    @CxC200711 жыл бұрын

    I just sub your channel.. this is so cool. But, how many hours does it take you to make 1 blade ? witch is the final cost of the blade ? Is it competitive in the actual market ?

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Can't be perfect every day, I spent a TON of time editing this one.

  • @Hunter1998ice
    @Hunter1998ice11 жыл бұрын

    howmuch is a fixedblade norseman ?

  • @0MisterGibson0
    @0MisterGibson011 жыл бұрын

    Good Stuff. To Quote Wayne's World "It will be mine. Oh yes. It will be mine." Some day. Did i just see the ATC Shoot a burst of air before switching tools to get rid of chips....Crazy smart.

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    No worries at all, I like your razzy comments.

  • @1337Leva
    @1337Leva11 жыл бұрын

    so where's the integral framelock?

  • @basketofkittens
    @basketofkittens11 жыл бұрын

    Looks like you're making excellent progress, John! Have you tried leaving 5 thou on the finish pass?

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    On camera mic, it sounds worst when I'm standing right above it and talking, not so bad when I'm in front of it talking towards it. I haven't done any audio tweaks except for lowering the volume for all the loud machining parts. It would be nice to record better audio for all the talking parts.

  • @cncshopmill
    @cncshopmill11 жыл бұрын

    Hey john nice video, have always been a fan of your work! Quick question if you dont mind, what camera do you use when filming? Thanks

  • @WhyamIstillwatchingyoutube
    @WhyamIstillwatchingyoutube10 жыл бұрын

    Hey having problems with your sound this run, something happen? Its loud n crackling then fine and repeats.

  • @haseopurple4814
    @haseopurple481411 жыл бұрын

    so is it 25 usd for a norseman? and would it be customizable?

  • @dominic6634
    @dominic6634 Жыл бұрын

    You've come so far

  • @JohnGrimsmo
    @JohnGrimsmo11 жыл бұрын

    Outside in a lean to ehhhh? Interesting. Or I'll make a breathable sound absorbing box for it inside. I have thought about a wood stove, but that's about as far as I've gotten haha.

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