RASKS in 2019??

[@andreykush]

John. I think you need to use Aluminum oxide wheels. 1. They are a lot cheaper 2. They cut steel better than diamond 3. You can re-dress them by mounting diamond on your Mori table If they load-up, we used to cut slots in them across(vertical-axial) like Sun pattern Andrey

[@xenonram]

I like the Rask a lot more than the Norseman.

[@knifetoucher]

Same actually.

[@ChuckBeefOG]

It would be cool if they offered an edc blade for workers at a realistic price. Id kill for a Rask in D2 with G10 that cost $200. I wouldnt be afraid to carry and use it in my line of work. $900 is way too much for a plain Norseman or Rask. I can get a massive excavator bucket fixed up at a machine shop in Canada for less than a pocket knife, and that tool will make my money back in 4hrs.

[@12345NoNamesLeft]

@@ChuckBeefOG Look up the price of materials, he can't buy the steel, G10, titanium and other raw materials for $200. Even full production Benchmades retail for more.

[@ChuckBeefOG]

12345NoNamesLeft Not really, i can get a 154cm Griptilian for $95cad. If they made a liner lock you would be talking $40 raw materials. The price come from machine time. Canadian labour and machining is not cheap.

[@DavidtheSwarfer]

those grinding lines are because you are doing a full width engagement and the same high and low spots on the grinding wheel are always in the same place on the blade. Maybe doing it the way a surface grinder traverses a surface would eliminate that? at least for the finishing passes I would try using different Z heights so that the lines are averaged out..

[@NickShabazz]

Sounds like you need a six axis mill. 🤣

[@grahambliley8604]

“Love is the sixth axis.” - Batman

[@nemesismachineworks1985]

A OEM maker Rogue Bladeworks on instagram has a 1.7M $ Robotic arm grinder if that is the one you are referencing I believe it has 6 or 7 axis. Only one I know of , they have ground stuff for clients of ours

[@TheBenpost]

Woohoo!!! Fingers crossed to be able to buy either of your amazing knives. My dad and I have been watching your channel for years, you guys are the reason I got into knife collection. I would love to be able to show one to my dad some day

[@ScroungerLee]

Thank you so much for being willing to share problems and especially costs of tooling.

[@rustysena2638]

I took Aaron Gough's advice and started using these stones for my knives. They're amazing. I wish I had known about these sooner. I do kitchen knives on my Tormach and my bevels are kinda long and take forever to smooth out. But the stones make it better than sandpaper. Great work man. Love your knives and your channel.

[@Pleasestopthat]

I’ve used both an air and an electric profiler for years in a tool and die shop getting optical finishes (A-1) for biomedical microfluidic cards and the electric from gesswein is absolutely worth the 2-4K investment. It’s almost silent, much less vibration on the hand and is much more controllable. It also has a floating head mode which makes it much easier profiling radiuses. Look for the pistol grip style on the gesswein website you have to get a power supply also but you can use it with a micro motor or an ultrasonic profiler as well.

[@hellohun7331]

Such dedication. You knife manufacturers are a bit nuts.

[@Beadlock_]

For the same reason that you put the fixture in and milled at an angle: Could you make a second fixture that has the blade set horizontally and sticking up at +4 degrees from the platen work? This would potentially allow for a face mill instead of end mill? (If this has been thought of already, please disregard)

[@RobertJLessard]

Yes absolutely the way to Machine blade bevels if they are flat planes. I've tried this for small blades and it works awesome. About 3 minutes of hand lapping after to remove machine marks and ready to tumble.

[@JCisHere778]

I would consider surface grinding the bevels. With a dressed radius and a fixture for 4/5 Blades you'd get a much more reliable process and you're not tying down the mori.

[@maikeydii]

If you are going with the hand stoning path you would want to stone at least the first few coarsest grit stones in crossing / perpendicular paths to each other. If you keep going just in one direction you will dig out the machining irregularities with the stone. The finish passes can be done as Angelo is doing on the video.

[@bcbloc02]

I still think you should try a roller burnished for finishing. Knocking down highs to fill lows and smooth surfaces is exactly what they are designed to do.

[@northernsmith]

Have you thought about a fixture set up for the surface grinder? You could bevel one side of a stone wheel for the transition area. Hold .0001 accuracy and get a reliable finish. Then do minimal hand finishing before tumbling.

[@teseglet]

I had given up on the Rask and about to pull trigger on a Shirogorov. Timely and good news this video.

[@solargoomba]

Huzzah! Good thing I already have dibs on one! Keep it up!

[@survinenathan]

Awesome. Time to wear out the "refresh" button on my email

[@frollard]

10:45 does it make sense to vary the z height of each pass by a handful of thou to vary the grind being put into the blade by the wheel? Very promising results!

[@DirtyGingy]

I would so be interested in a non-tumbled version that is only finished with the stones.

[@mickkeim4142]

Thank you so much for sharing. As a everyday collector, this kind of information is invaluable. In other words, a fairly detailed picture of what goes into the process behind the scene. It gives me an enhanced appreciation for your trade. And while I dont know if I will ever be able to afford a custom...I’m sure there is a crossover in process, just more attention to detail. Maybe one of these days...I hope.

[@aly-tek7190]

It might sound silly but have you thought about a tool/cutter grinder?

[@connorpurington610]

I have been useing resin bond diamond grinding wheels for many years and 800 grit is far to fine, 220 grit would give you 10-12 if it is trued/dressed properly. We're talking .0004 infeed for a 220 wheel. 800 grint your talking a tenth. Maybe two. I personally would not choose diamond for steel. I would probably choose silicone carbide, and set up a diamond dressing stick I'm the mill and dress automatically. Love your work and your channel!! Podcast is my favorite on the way to work!

[@jeffl1356]

The blades are hardened steel... I think you are on the right track though...

[@connorpurington610]

Whoops, that's what I ment. But yea iron literally breaks down diamond. Aluminum oxide possibly silicon carbide. Should be able to see 10ra no problem. Asumeing rigidity and proper dressing.

[@connorpurington610]

Cbn resin bond would also work though I still think aluminum oxide or sic would be best.

[@inuyashacoolieo]

Could you maybe make the grinding wheel taller and than program it to oscillate up and down as you traverse down the blade to get rid of the lines?

[@mbm2355]

What IIIIIIIIIIIIISSSupguys - oh, wait.. wrong channel.

[@russtuff]

Killer! And here I am still playing with Grizzly :)

[@michaelalcocer6778]

Gotta start somewhere! Miss your videos!

[@jeffl1356]

There has got to be a good way to do it on your mill... all the hand work seems like a killer! One thought I had was similar to another comment. Maybe try moving down as you traverse the blade with the grinding wheel would help with the burning. Would also use the entire width of the wheel.

[@robertroy3560]

Have you ever researched Superfinishing (all one word)? It has an interesting history and can provide insane surface finishes. You might be able to adapt it to get the finishes you want on Rask or on some future product. If you google 'superfinishing flat surfaces', you will see some applications that may be relevant to the problem you are trying to solve. If you still have your Tormach, you might be able to turn that into a superfinishing machine...

[@NickMcEntee]

I’m in for a Rask! Held the one at Saunders open house and have wanted one ever since.

[@pcpwcail]

Got the Norseman guess I’ll have to save up for the set😀

[@keaganmurphy5912]

Hey John, have you looked into extrude honing? I know it's used more traditionally for ID work, but maybe a custom fixture holding the blades in a tube would work?

[@ixiknivesixi1058]

I want to work for a custom knife maker so damn bad. Not because it think I could make a lot of money, because I know I wouldn’t. Because I love knives so much and I want to learn from a pro. I would work for next to nothing.

[@johntrowbridge6190]

What if you made a fixture and ran them through your lapping machine ?

[@jerkimerjames3545]

Diamond wheels will cause the diamond to chemically react with steel and cause the diamond and steel to change its properties it must be very carefully matched with cooling and binding and the type of material being ground or polished. It's better to use Cubic Boron Nitride which is better at being inert at high temps also aluminum oxides with zirconium and silicon carbide are less expensive and also have better thermal and inertness in steel. 3M has an excellent application engineering group for these issues. Save the headache and frustration of going alone by wasting time better spent developing designs and making money to support your employees and business. It's ok to get professional services to challenges beyond your expertise. Otherwise, learn the hard way through trial and error and over thinking something that has been fully understood for decades. It ok to ask, they don't charge you unless you buy the product that resolves your issue. There are decades upon decades of knowledge that has been put into standards to achieve finishes that are one atom thick. A blade is a great opportunity to see what you can get in finish, toughness, edge hardness, and anything you desire. It's about innovating where others have indifference or ignorance of the state of the art that may be older than you to what is happening now. Just like the blade show has excellent ideas and numerous products. It is a cutting tool in form, fit, and function. The innovation is will it last centuries in the harshest conditions and also be a work of art that creates envy to be sought after. While being excellent at cutting from day one to generation from now. Give 3M a call, they can help.

[@PATurgeon2]

Instead of diamond, wouldn't CBN be more appropriate for steel?

[@butterflyknives6674]

Bring them back for 2020!

[@AMHKnives]

Di-profiler is well worth it over hand stoning. Cuts the time in half.

[@astbrnrd]

🤔 Have you tried film optical polishers? They work great for finishing chisel and planer blades to give them that mirror finish (at least the fine grits) on the sharp edges.

[@Daniel-vq9zb]

If your tool marks aren't super deep I buy a dmg ultrasonic stoning gun, its pricey but dosent vibrate like the oscillating ones, much easier on the hands

[@jumpmaster_edc664]

John where are we with the Rasks now that we are in 2020?

[@Lewarcher-f3t]

Great news!

[@jimboknife7272]

A grinding process could get you closer to where you want, faster. Obviously at a premium.

[@bigbird2100]

Maybe create a rotary jig 4th axis to machine several blades then use aluminum oxide bonded ball etc finish profile to 99% then use lap method to finish

[@souldude13]

Time to start saving again

[@nicksuarez1572]

Love your blade Design but incredibly over price

[@rustknuckleirongut8107]

Very Shirogorov knife. I like, but I wish it was more of a Grimsmo knife.

[@florisheuperman5048]

Why don't you surface grind them?

[@issues1975]

Any lefty Rasks this time around? ;)

[@mustafalang]

When is the norsman coming back?

[@attercopattercop]

Hey guys! Are you guys gonna do some lefty ones this run?

[@VincenzoNero94]

Let me get a rask 😏

[@josephjohnson6689]

This is awesome news!!! Can’t wait!!! This made my day!!!

[@DarkMatterLP1]

ayyyyeeee a new grimsmo vid

[@multiHappyHacker]

diamond lapping compound on a piece of aluminum foil on a stick?

[@klayd88]

Hi,the 800grit wheel sound like a bad idea tbh. my surface grinder with a 46grit soft AO after dressing can do up to 320-400"grit" finish(no coolant) on ht blade.

[@paulmace7910]

How much is +1 axis for the mill. That blade angle screams for a separate fixture on a trunnion, maybe a rotary too. Use bigger diameter plated wheels like in a cnc t&c grinder. Having multiple grits will let you sneak up on the finish. You should be able to do the finish you want right in the mill. www.artcotools.com has a good selection of stones and die profilers too.

[@americanantiques2916]

VERY COOL KNIVES... Super channel I have a knife channel myself keep up good work.

[@Built82F100]

Some China place is selling knock off versions of your knives on e bay

[@christianedelmann6880]

Hmm well now you got a Kern soooooo much better

[@noahdropkin1162]

Why not surface grind in a fixture?

[@John..18]

Since the Rask has been on hold,,,, ... Chinese knives,,,,, lol,,,.

[@aria8928]

hand stoning is legal in canada now so...

[@Chadh4x]

With that grinder and a Moen platen you should have absolutely no issues getting a satin/semi polished finish ready for tumbling. You guys are trying to get custom knife maker quality without doing custom knife maker shit.

[@knifetoucher]

9:14 tell him it's pronounced 'OSSILATING'

[@ericelsoncustomknives3940]

Linda wheel reveal!

[@Meyerwoodworks]

I was wondering if these were it! Never got to see them.

[@DGI82]

Phenominal!!!!

[@nemesismachineworks1985]

Check with a shop called Rogue Bladeworks on instagram, They have a one of a kind $1.7M robotic articulating grinder for doing blades. They can do any grind there is. They have ground stuff for our clients

[@ZeroAustria]

Hi John, have you ever tried this: www.tyrolit.at/bereiche/industriefachhandel/produkte/schleifmittel-auf-unterlage/geradschleifer/vlies-und-faecherstifte.html We put this also in our CNC to get a shiny surface. Greetings from Austria, Stefan

[@danduane1413]

Grimsmo Knives hates their customers -- but may not know it. I was interested in GK from Nick S.'s review of it. I'm very interested the way their shop works. That they have wonderful machinery and high standards, and that they do almost all of their work in-house. But that's where it ends. I was looking around for a way to contact them. After some poking around, they have an Instagram account. I don't have Instagram. I guess I have to jump through hoops to just contact them? No e-mail on their main page? Then there's the Maker's Choice List. Make a batch and sign up for it? Nope. The system they have I could literally wait a decade + for the knife/pen I really want. I'm in my 50's -- I could literally be dead before I get what I really wanted. Payment system? PayPal. I don't have it. Am I expected to jump through hoops again to just pay them? Mastercard, or Interac by email? [Canada only] Nope. The Rask or Sebenza 31? I'll take the Sebenza, thank you. Added bonus -- he makes a left-handed version.

[@vincerodriguez209]

love your videos bro but it seems you met alot of people who your channel inspired but for sure felt the fact that they are climbing on your heels as well as the need that you better get on a new project or fall behind huh??!?! but hey it happens ,, cant stay at the top forever!